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<dl class="meta">
<dt>Revision</dt> <dd><a href="http://trac.webkit.org/projects/webkit/changeset/206977">206977</a></dd>
<dt>Author</dt> <dd>darin@apple.com</dd>
<dt>Date</dt> <dd>2016-10-09 19:14:05 -0700 (Sun, 09 Oct 2016)</dd>
</dl>

<h3>Log Message</h3>
<pre>Move ApplePaySession from legacy to new DOM exceptions
https://bugs.webkit.org/show_bug.cgi?id=163191

Reviewed by Sam Weinig.

* Modules/applepay/ApplePaySession.cpp:
(WebCore::ApplePaySession::create): Use ExceptionOr.
(WebCore::ApplePaySession::ApplePaySession): Moved initialization
of two of the data members to class definition.
(WebCore::ApplePaySession::supportsVersion): Use ExceptionOr.
(WebCore::ApplePaySession::canMakePayments): Ditto.
(WebCore::ApplePaySession::canMakePaymentsWithActiveCard): Ditto.
(WebCore::ApplePaySession::openPaymentSetup): Ditto.
(WebCore::ApplePaySession::begin): Ditto.
(WebCore::ApplePaySession::abort): Ditto.
(WebCore::ApplePaySession::completeMerchantValidation): Ditto.
(WebCore::ApplePaySession::completeShippingMethodSelection): Ditto.
(WebCore::ApplePaySession::completeShippingContactSelection): Ditto.
(WebCore::ApplePaySession::completePaymentMethodSelection): Ditto.
(WebCore::ApplePaySession::completePayment): Ditto.
(WebCore::ApplePaySession::validateMerchant): Use auto and get instead of
using a RefPtr type and * for event dispatching.
(WebCore::ApplePaySession::didAuthorizePayment): Ditto.
(WebCore::ApplePaySession::didSelectShippingMethod): Ditto.
(WebCore::ApplePaySession::didSelectShippingContact): Ditto.
(WebCore::ApplePaySession::didSelectPaymentMethod): Ditto.
(WebCore::ApplePaySession::didCancelPayment): Ditto.
(WebCore::ApplePaySession::paymentCoordinator): Moved dereferencing
inside the downcast.

* Modules/applepay/ApplePaySession.h: Updated for changes above.

* Modules/applepay/ApplePaySession.idl: Use MayThrowException.

* bindings/js/JSApplePaySessionCustom.cpp:
(WebCore::JSApplePaySession::completeShippingMethodSelection):
Use propagateException.
(WebCore::JSApplePaySession::completeShippingContactSelection): Ditto.
(WebCore::JSApplePaySession::completePaymentMethodSelection): Ditto.

* bindings/js/JSDOMBinding.h: Added implementation of toJSBoolean.

* bindings/scripts/CodeGeneratorJS.pm:
(GenerateConstructorDefinition): Generate the different arguments for
toJSNewlyCreated when ConstructorMayThrowException is specified that
activate the version of that function that handles exceptions.

* bindings/scripts/IDLAttributes.txt: Added ConstructorMayThrowException.</pre>

<h3>Modified Paths</h3>
<ul>
<li><a href="#trunkSourceWebCoreChangeLog">trunk/Source/WebCore/ChangeLog</a></li>
<li><a href="#trunkSourceWebCoreModulesapplepayApplePaySessioncpp">trunk/Source/WebCore/Modules/applepay/ApplePaySession.cpp</a></li>
<li><a href="#trunkSourceWebCoreModulesapplepayApplePaySessionh">trunk/Source/WebCore/Modules/applepay/ApplePaySession.h</a></li>
<li><a href="#trunkSourceWebCoreModulesapplepayApplePaySessionidl">trunk/Source/WebCore/Modules/applepay/ApplePaySession.idl</a></li>
<li><a href="#trunkSourceWebCorebindingsjsJSApplePaySessionCustomcpp">trunk/Source/WebCore/bindings/js/JSApplePaySessionCustom.cpp</a></li>
<li><a href="#trunkSourceWebCorebindingsjsJSDOMBindingh">trunk/Source/WebCore/bindings/js/JSDOMBinding.h</a></li>
<li><a href="#trunkSourceWebCorebindingsscriptsCodeGeneratorJSpm">trunk/Source/WebCore/bindings/scripts/CodeGeneratorJS.pm</a></li>
<li><a href="#trunkSourceWebCorebindingsscriptsIDLAttributestxt">trunk/Source/WebCore/bindings/scripts/IDLAttributes.txt</a></li>
</ul>

</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunkSourceWebCoreChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/ChangeLog (206976 => 206977)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/ChangeLog        2016-10-10 02:13:28 UTC (rev 206976)
+++ trunk/Source/WebCore/ChangeLog        2016-10-10 02:14:05 UTC (rev 206977)
</span><span class="lines">@@ -1,5 +1,56 @@
</span><span class="cx"> 2016-10-09  Darin Adler  &lt;darin@apple.com&gt;
</span><span class="cx"> 
</span><ins>+        Move ApplePaySession from legacy to new DOM exceptions
+        https://bugs.webkit.org/show_bug.cgi?id=163191
+
+        Reviewed by Sam Weinig.
+
+        * Modules/applepay/ApplePaySession.cpp:
+        (WebCore::ApplePaySession::create): Use ExceptionOr.
+        (WebCore::ApplePaySession::ApplePaySession): Moved initialization
+        of two of the data members to class definition.
+        (WebCore::ApplePaySession::supportsVersion): Use ExceptionOr.
+        (WebCore::ApplePaySession::canMakePayments): Ditto.
+        (WebCore::ApplePaySession::canMakePaymentsWithActiveCard): Ditto.
+        (WebCore::ApplePaySession::openPaymentSetup): Ditto.
+        (WebCore::ApplePaySession::begin): Ditto.
+        (WebCore::ApplePaySession::abort): Ditto.
+        (WebCore::ApplePaySession::completeMerchantValidation): Ditto.
+        (WebCore::ApplePaySession::completeShippingMethodSelection): Ditto.
+        (WebCore::ApplePaySession::completeShippingContactSelection): Ditto.
+        (WebCore::ApplePaySession::completePaymentMethodSelection): Ditto.
+        (WebCore::ApplePaySession::completePayment): Ditto.
+        (WebCore::ApplePaySession::validateMerchant): Use auto and get instead of
+        using a RefPtr type and * for event dispatching.
+        (WebCore::ApplePaySession::didAuthorizePayment): Ditto.
+        (WebCore::ApplePaySession::didSelectShippingMethod): Ditto.
+        (WebCore::ApplePaySession::didSelectShippingContact): Ditto.
+        (WebCore::ApplePaySession::didSelectPaymentMethod): Ditto.
+        (WebCore::ApplePaySession::didCancelPayment): Ditto.
+        (WebCore::ApplePaySession::paymentCoordinator): Moved dereferencing
+        inside the downcast.
+
+        * Modules/applepay/ApplePaySession.h: Updated for changes above.
+
+        * Modules/applepay/ApplePaySession.idl: Use MayThrowException.
+
+        * bindings/js/JSApplePaySessionCustom.cpp:
+        (WebCore::JSApplePaySession::completeShippingMethodSelection):
+        Use propagateException.
+        (WebCore::JSApplePaySession::completeShippingContactSelection): Ditto.
+        (WebCore::JSApplePaySession::completePaymentMethodSelection): Ditto.
+
+        * bindings/js/JSDOMBinding.h: Added implementation of toJSBoolean.
+
+        * bindings/scripts/CodeGeneratorJS.pm:
+        (GenerateConstructorDefinition): Generate the different arguments for
+        toJSNewlyCreated when ConstructorMayThrowException is specified that
+        activate the version of that function that handles exceptions.
+
+        * bindings/scripts/IDLAttributes.txt: Added ConstructorMayThrowException.
+
+2016-10-09  Darin Adler  &lt;darin@apple.com&gt;
+
</ins><span class="cx">         Replace all uses of ExceptionCodeWithMessage with WebCore::Exception
</span><span class="cx">         https://bugs.webkit.org/show_bug.cgi?id=163178
</span><span class="cx"> 
</span></span></pre></div>
<a id="trunkSourceWebCoreModulesapplepayApplePaySessioncpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/Modules/applepay/ApplePaySession.cpp (206976 => 206977)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/Modules/applepay/ApplePaySession.cpp        2016-10-10 02:13:28 UTC (rev 206976)
+++ trunk/Source/WebCore/Modules/applepay/ApplePaySession.cpp        2016-10-10 02:14:05 UTC (rev 206977)
</span><span class="lines">@@ -635,7 +635,7 @@
</span><span class="cx">     return true;
</span><span class="cx"> }
</span><span class="cx"> 
</span><del>-RefPtr&lt;ApplePaySession&gt; ApplePaySession::create(Document&amp; document, unsigned version, const Dictionary&amp; dictionary, ExceptionCode&amp; ec)
</del><ins>+ExceptionOr&lt;Ref&lt;ApplePaySession&gt;&gt; ApplePaySession::create(Document&amp; document, unsigned version, const Dictionary&amp; dictionary)
</ins><span class="cx"> {
</span><span class="cx">     DOMWindow&amp; window = *document.domWindow();
</span><span class="cx"> 
</span><span class="lines">@@ -642,14 +642,12 @@
</span><span class="cx">     String errorMessage;
</span><span class="cx">     if (!canCallApplePaySessionAPIs(document, errorMessage)) {
</span><span class="cx">         window.printErrorMessage(errorMessage);
</span><del>-        ec = INVALID_ACCESS_ERR;
-        return nullptr;
</del><ins>+        return Exception { INVALID_ACCESS_ERR };
</ins><span class="cx">     }
</span><span class="cx"> 
</span><span class="cx">     if (!ScriptController::processingUserGesture()) {
</span><span class="cx">         window.printErrorMessage(&quot;Must create a new ApplePaySession from a user gesture handler.&quot;);
</span><del>-        ec = INVALID_ACCESS_ERR;
-        return nullptr;
</del><ins>+        return Exception { INVALID_ACCESS_ERR };
</ins><span class="cx">     }
</span><span class="cx"> 
</span><span class="cx">     auto&amp; paymentCoordinator = document.frame()-&gt;mainFrame().paymentCoordinator();
</span><span class="lines">@@ -656,28 +654,21 @@
</span><span class="cx"> 
</span><span class="cx">     if (!version || !paymentCoordinator.supportsVersion(version)) {
</span><span class="cx">         window.printErrorMessage(makeString(&quot;\&quot;&quot; + String::number(version), &quot;\&quot; is not a supported version.&quot;));
</span><del>-        ec = INVALID_ACCESS_ERR;
-        return nullptr;
</del><ins>+        return Exception { INVALID_ACCESS_ERR };
</ins><span class="cx">     }
</span><span class="cx"> 
</span><span class="cx">     auto paymentRequest = createPaymentRequest(version, window, dictionary);
</span><del>-    if (!paymentRequest) {
-        ec = TYPE_MISMATCH_ERR;
-        return nullptr;
-    }
</del><ins>+    if (!paymentRequest)
+        return Exception { TYPE_MISMATCH_ERR };
</ins><span class="cx"> 
</span><del>-    if (!PaymentRequestValidator(window).validate(*paymentRequest)) {
-        ec = INVALID_ACCESS_ERR;
-        return nullptr;
-    }
</del><ins>+    if (!PaymentRequestValidator(window).validate(*paymentRequest))
+        return Exception { INVALID_ACCESS_ERR };
</ins><span class="cx"> 
</span><del>-    return adoptRef(new ApplePaySession(document, WTFMove(*paymentRequest)));
</del><ins>+    return adoptRef(*new ApplePaySession(document, WTFMove(*paymentRequest)));
</ins><span class="cx"> }
</span><span class="cx"> 
</span><span class="cx"> ApplePaySession::ApplePaySession(Document&amp; document, PaymentRequest&amp;&amp; paymentRequest)
</span><span class="cx">     : ActiveDOMObject(&amp;document)
</span><del>-    , m_state(State::Idle)
-    , m_merchantValidationState(MerchantValidationState::Idle)
</del><span class="cx">     , m_paymentRequest(WTFMove(paymentRequest))
</span><span class="cx"> {
</span><span class="cx">     suspendIfNeeded();
</span><span class="lines">@@ -687,12 +678,10 @@
</span><span class="cx"> {
</span><span class="cx"> }
</span><span class="cx"> 
</span><del>-bool ApplePaySession::supportsVersion(ScriptExecutionContext&amp; scriptExecutionContext, unsigned version, ExceptionCode&amp; ec)
</del><ins>+ExceptionOr&lt;bool&gt; ApplePaySession::supportsVersion(ScriptExecutionContext&amp; scriptExecutionContext, unsigned version)
</ins><span class="cx"> {
</span><del>-    if (!version) {
-        ec = INVALID_ACCESS_ERR;
-        return false;
-    }
</del><ins>+    if (!version)
+        return Exception { INVALID_ACCESS_ERR };
</ins><span class="cx"> 
</span><span class="cx">     auto&amp; document = downcast&lt;Document&gt;(scriptExecutionContext);
</span><span class="cx">     DOMWindow&amp; window = *document.domWindow();
</span><span class="lines">@@ -700,12 +689,10 @@
</span><span class="cx">     String errorMessage;
</span><span class="cx">     if (!canCallApplePaySessionAPIs(document, errorMessage)) {
</span><span class="cx">         window.printErrorMessage(errorMessage);
</span><del>-        ec = INVALID_ACCESS_ERR;
-        return false;
</del><ins>+        return Exception { INVALID_ACCESS_ERR };
</ins><span class="cx">     }
</span><span class="cx"> 
</span><del>-    auto&amp; paymentCoordinator = document.frame()-&gt;mainFrame().paymentCoordinator();
-    return paymentCoordinator.supportsVersion(version);
</del><ins>+    return document.frame()-&gt;mainFrame().paymentCoordinator().supportsVersion(version);
</ins><span class="cx"> }
</span><span class="cx"> 
</span><span class="cx"> static bool shouldDiscloseApplePayCapability(Document&amp; document)
</span><span class="lines">@@ -717,7 +704,7 @@
</span><span class="cx">     return document.frame()-&gt;settings().applePayCapabilityDisclosureAllowed();
</span><span class="cx"> }
</span><span class="cx"> 
</span><del>-bool ApplePaySession::canMakePayments(ScriptExecutionContext&amp; scriptExecutionContext, ExceptionCode&amp; ec)
</del><ins>+ExceptionOr&lt;bool&gt; ApplePaySession::canMakePayments(ScriptExecutionContext&amp; scriptExecutionContext)
</ins><span class="cx"> {
</span><span class="cx">     auto&amp; document = downcast&lt;Document&gt;(scriptExecutionContext);
</span><span class="cx">     DOMWindow&amp; window = *document.domWindow();
</span><span class="lines">@@ -725,15 +712,13 @@
</span><span class="cx">     String errorMessage;
</span><span class="cx">     if (!canCallApplePaySessionAPIs(document, errorMessage)) {
</span><span class="cx">         window.printErrorMessage(errorMessage);
</span><del>-        ec = INVALID_ACCESS_ERR;
-        return false;
</del><ins>+        return Exception { INVALID_ACCESS_ERR };
</ins><span class="cx">     }
</span><span class="cx"> 
</span><del>-    auto&amp; paymentCoordinator = document.frame()-&gt;mainFrame().paymentCoordinator();
-    return paymentCoordinator.canMakePayments();
</del><ins>+    return document.frame()-&gt;mainFrame().paymentCoordinator().canMakePayments();
</ins><span class="cx"> }
</span><span class="cx"> 
</span><del>-void ApplePaySession::canMakePaymentsWithActiveCard(ScriptExecutionContext&amp; scriptExecutionContext, const String&amp; merchantIdentifier, Ref&lt;DeferredPromise&gt;&amp;&amp; passedPromise, ExceptionCode&amp; ec)
</del><ins>+ExceptionOr&lt;void&gt; ApplePaySession::canMakePaymentsWithActiveCard(ScriptExecutionContext&amp; scriptExecutionContext, const String&amp; merchantIdentifier, Ref&lt;DeferredPromise&gt;&amp;&amp; passedPromise)
</ins><span class="cx"> {
</span><span class="cx">     auto&amp; document = downcast&lt;Document&gt;(scriptExecutionContext);
</span><span class="cx">     DOMWindow&amp; window = *document.domWindow();
</span><span class="lines">@@ -741,8 +726,7 @@
</span><span class="cx">     String errorMessage;
</span><span class="cx">     if (!canCallApplePaySessionAPIs(document, errorMessage)) {
</span><span class="cx">         window.printErrorMessage(errorMessage);
</span><del>-        ec = INVALID_ACCESS_ERR;
-        return;
</del><ins>+        return Exception { INVALID_ACCESS_ERR };
</ins><span class="cx">     }
</span><span class="cx"> 
</span><span class="cx">     RefPtr&lt;DeferredPromise&gt; promise(WTFMove(passedPromise));
</span><span class="lines">@@ -753,7 +737,7 @@
</span><span class="cx">         RunLoop::main().dispatch([promise, canMakePayments]() mutable {
</span><span class="cx">             promise-&gt;resolve(canMakePayments);
</span><span class="cx">         });
</span><del>-        return;
</del><ins>+        return { };
</ins><span class="cx">     }
</span><span class="cx"> 
</span><span class="cx">     auto&amp; paymentCoordinator = document.frame()-&gt;mainFrame().paymentCoordinator();
</span><span class="lines">@@ -761,9 +745,10 @@
</span><span class="cx">     paymentCoordinator.canMakePaymentsWithActiveCard(merchantIdentifier, document.domain(), [promise](bool canMakePayments) mutable {
</span><span class="cx">         promise-&gt;resolve(canMakePayments);
</span><span class="cx">     });
</span><ins>+    return { };
</ins><span class="cx"> }
</span><span class="cx"> 
</span><del>-void ApplePaySession::openPaymentSetup(ScriptExecutionContext&amp; scriptExecutionContext, const String&amp; merchantIdentifier, Ref&lt;DeferredPromise&gt;&amp;&amp; passedPromise, ExceptionCode&amp; ec)
</del><ins>+ExceptionOr&lt;void&gt; ApplePaySession::openPaymentSetup(ScriptExecutionContext&amp; scriptExecutionContext, const String&amp; merchantIdentifier, Ref&lt;DeferredPromise&gt;&amp;&amp; passedPromise)
</ins><span class="cx"> {
</span><span class="cx">     auto&amp; document = downcast&lt;Document&gt;(scriptExecutionContext);
</span><span class="cx">     DOMWindow&amp; window = *document.domWindow();
</span><span class="lines">@@ -771,14 +756,12 @@
</span><span class="cx">     String errorMessage;
</span><span class="cx">     if (!canCallApplePaySessionAPIs(document, errorMessage)) {
</span><span class="cx">         window.printErrorMessage(errorMessage);
</span><del>-        ec = INVALID_ACCESS_ERR;
-        return;
</del><ins>+        return Exception { INVALID_ACCESS_ERR };
</ins><span class="cx">     }
</span><span class="cx"> 
</span><span class="cx">     if (!ScriptController::processingUserGesture()) {
</span><span class="cx">         window.printErrorMessage(&quot;Must call ApplePaySession.openPaymentSetup from a user gesture handler.&quot;);
</span><del>-        ec = INVALID_ACCESS_ERR;
-        return;
</del><ins>+        return Exception { INVALID_ACCESS_ERR };
</ins><span class="cx">     }
</span><span class="cx"> 
</span><span class="cx">     RefPtr&lt;DeferredPromise&gt; promise(WTFMove(passedPromise));
</span><span class="lines">@@ -787,9 +770,11 @@
</span><span class="cx">     paymentCoordinator.openPaymentSetup(merchantIdentifier, document.domain(), [promise](bool result) mutable {
</span><span class="cx">         promise-&gt;resolve(result);
</span><span class="cx">     });
</span><ins>+
+    return { };
</ins><span class="cx"> }
</span><span class="cx"> 
</span><del>-void ApplePaySession::begin(ExceptionCode&amp; ec)
</del><ins>+ExceptionOr&lt;void&gt; ApplePaySession::begin()
</ins><span class="cx"> {
</span><span class="cx">     auto&amp; document = *downcast&lt;Document&gt;(scriptExecutionContext());
</span><span class="cx">     auto&amp; window = *document.domWindow();
</span><span class="lines">@@ -796,15 +781,12 @@
</span><span class="cx"> 
</span><span class="cx">     if (!canBegin()) {
</span><span class="cx">         window.printErrorMessage(&quot;Payment session is already active.&quot;);
</span><del>-        ec = INVALID_ACCESS_ERR;
-        return;
</del><ins>+        return Exception { INVALID_ACCESS_ERR };
</ins><span class="cx">     }
</span><span class="cx"> 
</span><span class="cx">     if (paymentCoordinator().hasActiveSession()) {
</span><span class="cx">         window.printErrorMessage(&quot;Page already has an active payment session.&quot;);
</span><del>-
-        ec = INVALID_ACCESS_ERR;
-        return;
</del><ins>+        return Exception { INVALID_ACCESS_ERR };
</ins><span class="cx">     }
</span><span class="cx"> 
</span><span class="cx">     Vector&lt;URL&gt; linkIconURLs;
</span><span class="lines">@@ -813,40 +795,36 @@
</span><span class="cx"> 
</span><span class="cx">     if (!paymentCoordinator().beginPaymentSession(*this, document.url(), linkIconURLs, m_paymentRequest)) {
</span><span class="cx">         window.printErrorMessage(&quot;There is already has an active payment session.&quot;);
</span><del>-
-        ec = INVALID_ACCESS_ERR;
-        return;
</del><ins>+        return Exception { INVALID_ACCESS_ERR };
</ins><span class="cx">     }
</span><span class="cx"> 
</span><span class="cx">     m_state = State::Active;
</span><span class="cx"> 
</span><span class="cx">     setPendingActivity(this);
</span><ins>+
+    return { };
</ins><span class="cx"> }
</span><span class="cx"> 
</span><del>-void ApplePaySession::abort(ExceptionCode&amp; ec)
</del><ins>+ExceptionOr&lt;void&gt; ApplePaySession::abort()
</ins><span class="cx"> {
</span><del>-    if (!canAbort()) {
-        ec = INVALID_ACCESS_ERR;
-        return;
-    }
</del><ins>+    if (!canAbort())
+        return Exception { INVALID_ACCESS_ERR };
</ins><span class="cx"> 
</span><span class="cx">     m_state = State::Aborted;
</span><span class="cx">     paymentCoordinator().abortPaymentSession();
</span><span class="cx"> 
</span><span class="cx">     didReachFinalState();
</span><ins>+
+    return { };
</ins><span class="cx"> }
</span><span class="cx"> 
</span><del>-void ApplePaySession::completeMerchantValidation(const Dictionary&amp; merchantSessionDictionary, ExceptionCode&amp; ec)
</del><ins>+ExceptionOr&lt;void&gt; ApplePaySession::completeMerchantValidation(const Dictionary&amp; merchantSessionDictionary)
</ins><span class="cx"> {
</span><del>-    if (!canCompleteMerchantValidation()) {
-        ec = INVALID_ACCESS_ERR;
-        return;
-    }
</del><ins>+    if (!canCompleteMerchantValidation())
+        return Exception { INVALID_ACCESS_ERR };
</ins><span class="cx"> 
</span><del>-    if (!merchantSessionDictionary.initializerObject()) {
-        ec = TypeError;
-        return;
-    }
</del><ins>+    if (!merchantSessionDictionary.initializerObject())
+        return Exception { TypeError };
</ins><span class="cx"> 
</span><span class="cx">     auto&amp; document = *downcast&lt;Document&gt;(scriptExecutionContext());
</span><span class="cx">     auto&amp; window = *document.domWindow();
</span><span class="lines">@@ -855,15 +833,15 @@
</span><span class="cx">     auto merchantSession = PaymentMerchantSession::fromJS(*merchantSessionDictionary.execState(), merchantSessionDictionary.initializerObject(), errorMessage);
</span><span class="cx">     if (!merchantSession) {
</span><span class="cx">         window.printErrorMessage(errorMessage);
</span><del>-        ec = INVALID_ACCESS_ERR;
-        return;
</del><ins>+        return Exception { INVALID_ACCESS_ERR };
</ins><span class="cx">     }
</span><span class="cx"> 
</span><span class="cx">     m_merchantValidationState = MerchantValidationState::ValidationComplete;
</span><span class="cx">     paymentCoordinator().completeMerchantValidation(*merchantSession);
</span><ins>+
+    return { };
</ins><span class="cx"> }
</span><span class="cx"> 
</span><del>-
</del><span class="cx"> static Optional&lt;PaymentAuthorizationStatus&gt; toPaymentAuthorizationStatus(unsigned short status)
</span><span class="cx"> {
</span><span class="cx">     switch (status) {
</span><span class="lines">@@ -896,36 +874,26 @@
</span><span class="cx">     }
</span><span class="cx"> }
</span><span class="cx"> 
</span><del>-void ApplePaySession::completeShippingMethodSelection(unsigned short status, const Dictionary&amp; newTotalDictionary, const ArrayValue&amp; newLineItemsArray, ExceptionCode&amp; ec)
</del><ins>+ExceptionOr&lt;void&gt; ApplePaySession::completeShippingMethodSelection(unsigned short status, const Dictionary&amp; newTotalDictionary, const ArrayValue&amp; newLineItemsArray)
</ins><span class="cx"> {
</span><del>-    if (!canCompleteShippingMethodSelection()) {
-        ec = INVALID_ACCESS_ERR;
-        return;
-    }
</del><ins>+    if (!canCompleteShippingMethodSelection())
+        return Exception { INVALID_ACCESS_ERR };
</ins><span class="cx"> 
</span><span class="cx">     auto authorizationStatus = toPaymentAuthorizationStatus(status);
</span><del>-    if (!authorizationStatus) {
-        ec = INVALID_ACCESS_ERR;
-        return;
-    }
</del><ins>+    if (!authorizationStatus)
+        return Exception { INVALID_ACCESS_ERR };
</ins><span class="cx"> 
</span><span class="cx">     auto&amp; window = *downcast&lt;Document&gt;(scriptExecutionContext())-&gt;domWindow();
</span><span class="cx">     auto newTotal = createLineItem(window, newTotalDictionary);
</span><del>-    if (!newTotal) {
-        ec = INVALID_ACCESS_ERR;
-        return;
-    }
</del><ins>+    if (!newTotal)
+        return Exception { INVALID_ACCESS_ERR };
</ins><span class="cx"> 
</span><del>-    if (!PaymentRequestValidator(window).validateTotal(*newTotal)) {
-        ec = INVALID_ACCESS_ERR;
-        return;
-    }
</del><ins>+    if (!PaymentRequestValidator(window).validateTotal(*newTotal))
+        return Exception { INVALID_ACCESS_ERR };
</ins><span class="cx"> 
</span><span class="cx">     auto newLineItems = createLineItems(window, newLineItemsArray);
</span><del>-    if (!newLineItems) {
-        ec = INVALID_ACCESS_ERR;
-        return;
-    }
</del><ins>+    if (!newLineItems)
+        return Exception { INVALID_ACCESS_ERR };
</ins><span class="cx"> 
</span><span class="cx">     m_state = State::Active;
</span><span class="cx">     PaymentRequest::TotalAndLineItems totalAndLineItems;
</span><span class="lines">@@ -932,45 +900,35 @@
</span><span class="cx">     totalAndLineItems.total = *newTotal;
</span><span class="cx">     totalAndLineItems.lineItems = *newLineItems;
</span><span class="cx">     paymentCoordinator().completeShippingMethodSelection(*authorizationStatus, totalAndLineItems);
</span><ins>+
+    return { };
</ins><span class="cx"> }
</span><span class="cx"> 
</span><del>-void ApplePaySession::completeShippingContactSelection(unsigned short status, const ArrayValue&amp; newShippingMethodsArray, const Dictionary&amp; newTotalDictionary, const ArrayValue&amp; newLineItemsArray, ExceptionCode&amp; ec)
</del><ins>+ExceptionOr&lt;void&gt; ApplePaySession::completeShippingContactSelection(unsigned short status, const ArrayValue&amp; newShippingMethodsArray, const Dictionary&amp; newTotalDictionary, const ArrayValue&amp; newLineItemsArray)
</ins><span class="cx"> {
</span><del>-    if (!canCompleteShippingContactSelection()) {
-        ec = INVALID_ACCESS_ERR;
-        return;
-    }
</del><ins>+    if (!canCompleteShippingContactSelection())
+        return Exception { INVALID_ACCESS_ERR };
</ins><span class="cx"> 
</span><span class="cx">     auto authorizationStatus = toPaymentAuthorizationStatus(status);
</span><del>-    if (!authorizationStatus) {
-        ec = INVALID_ACCESS_ERR;
-        return;
-    }
</del><ins>+    if (!authorizationStatus)
+        return Exception { INVALID_ACCESS_ERR };
</ins><span class="cx"> 
</span><span class="cx">     auto&amp; window = *downcast&lt;Document&gt;(scriptExecutionContext())-&gt;domWindow();
</span><span class="cx"> 
</span><span class="cx">     auto newShippingMethods = createShippingMethods(window, newShippingMethodsArray);
</span><del>-    if (!newShippingMethods) {
-        ec = INVALID_ACCESS_ERR;
-        return;
-    }
</del><ins>+    if (!newShippingMethods)
+        return Exception { INVALID_ACCESS_ERR };
</ins><span class="cx"> 
</span><span class="cx">     auto newTotal = createLineItem(window, newTotalDictionary);
</span><del>-    if (!newTotal) {
-        ec = INVALID_ACCESS_ERR;
-        return;
-    }
</del><ins>+    if (!newTotal)
+        return Exception { INVALID_ACCESS_ERR };
</ins><span class="cx"> 
</span><del>-    if (!PaymentRequestValidator(window).validateTotal(*newTotal)) {
-        ec = INVALID_ACCESS_ERR;
-        return;
-    }
</del><ins>+    if (!PaymentRequestValidator(window).validateTotal(*newTotal))
+        return Exception { INVALID_ACCESS_ERR };
</ins><span class="cx"> 
</span><span class="cx">     auto newLineItems = createLineItems(window, newLineItemsArray);
</span><del>-    if (!newLineItems) {
-        ec = INVALID_ACCESS_ERR;
-        return;
-    }
</del><ins>+    if (!newLineItems)
+        return Exception { INVALID_ACCESS_ERR };
</ins><span class="cx"> 
</span><span class="cx">     m_state = State::Active;
</span><span class="cx">     PaymentRequest::TotalAndLineItems totalAndLineItems;
</span><span class="lines">@@ -977,32 +935,26 @@
</span><span class="cx">     totalAndLineItems.total = *newTotal;
</span><span class="cx">     totalAndLineItems.lineItems = *newLineItems;
</span><span class="cx">     paymentCoordinator().completeShippingContactSelection(*authorizationStatus, *newShippingMethods, totalAndLineItems);
</span><ins>+
+    return { };
</ins><span class="cx"> }
</span><span class="cx"> 
</span><del>-void ApplePaySession::completePaymentMethodSelection(const Dictionary&amp; newTotalDictionary, const ArrayValue&amp; newLineItemsArray, ExceptionCode&amp; ec)
</del><ins>+ExceptionOr&lt;void&gt; ApplePaySession::completePaymentMethodSelection(const Dictionary&amp; newTotalDictionary, const ArrayValue&amp; newLineItemsArray)
</ins><span class="cx"> {
</span><del>-    if (!canCompletePaymentMethodSelection()) {
-        ec = INVALID_ACCESS_ERR;
-        return;
-    }
</del><ins>+    if (!canCompletePaymentMethodSelection())
+        return Exception { INVALID_ACCESS_ERR };
</ins><span class="cx"> 
</span><del>-    auto&amp; window = *downcast&lt;Document&gt;(scriptExecutionContext())-&gt;domWindow();
</del><ins>+    auto&amp; window = *downcast&lt;Document&gt;(*scriptExecutionContext()).domWindow();
</ins><span class="cx">     auto newTotal = createLineItem(window, newTotalDictionary);
</span><del>-    if (!newTotal) {
-        ec = INVALID_ACCESS_ERR;
-        return;
-    }
</del><ins>+    if (!newTotal)
+        return Exception { INVALID_ACCESS_ERR };
</ins><span class="cx"> 
</span><del>-    if (!PaymentRequestValidator(window).validateTotal(*newTotal)) {
-        ec = INVALID_ACCESS_ERR;
-        return;
-    }
</del><ins>+    if (!PaymentRequestValidator(window).validateTotal(*newTotal))
+        return Exception { INVALID_ACCESS_ERR };
</ins><span class="cx"> 
</span><span class="cx">     auto newLineItems = createLineItems(window, newLineItemsArray);
</span><del>-    if (!newLineItems) {
-        ec = INVALID_ACCESS_ERR;
-        return;
-    }
</del><ins>+    if (!newLineItems)
+        return Exception { INVALID_ACCESS_ERR };
</ins><span class="cx"> 
</span><span class="cx">     m_state = State::Active;
</span><span class="cx">     PaymentRequest::TotalAndLineItems totalAndLineItems;
</span><span class="lines">@@ -1009,30 +961,29 @@
</span><span class="cx">     totalAndLineItems.total = *newTotal;
</span><span class="cx">     totalAndLineItems.lineItems = *newLineItems;
</span><span class="cx">     paymentCoordinator().completePaymentMethodSelection(totalAndLineItems);
</span><ins>+
+    return { };
</ins><span class="cx"> }
</span><span class="cx"> 
</span><del>-void ApplePaySession::completePayment(unsigned short status, ExceptionCode&amp; ec)
</del><ins>+ExceptionOr&lt;void&gt; ApplePaySession::completePayment(unsigned short status)
</ins><span class="cx"> {
</span><del>-    if (!canCompletePayment()) {
-        ec = INVALID_ACCESS_ERR;
-        return;
-    }
</del><ins>+    if (!canCompletePayment())
+        return Exception { INVALID_ACCESS_ERR };
</ins><span class="cx"> 
</span><span class="cx">     auto authorizationStatus = toPaymentAuthorizationStatus(status);
</span><del>-    if (!authorizationStatus) {
-        ec = INVALID_ACCESS_ERR;
-        return;
-    }
</del><ins>+    if (!authorizationStatus)
+        return Exception { INVALID_ACCESS_ERR };
</ins><span class="cx"> 
</span><span class="cx">     paymentCoordinator().completePaymentSession(*authorizationStatus);
</span><span class="cx"> 
</span><span class="cx">     if (!isFinalStateStatus(*authorizationStatus)) {
</span><span class="cx">         m_state = State::Active;
</span><del>-        return;
</del><ins>+        return { };
</ins><span class="cx">     }
</span><span class="cx"> 
</span><span class="cx">     m_state = State::Completed;
</span><span class="cx">     unsetPendingActivity(this);
</span><ins>+    return { };
</ins><span class="cx"> }
</span><span class="cx"> 
</span><span class="cx"> void ApplePaySession::validateMerchant(const URL&amp; validationURL)
</span><span class="lines">@@ -1053,8 +1004,8 @@
</span><span class="cx"> 
</span><span class="cx">     m_merchantValidationState = MerchantValidationState::ValidatingMerchant;
</span><span class="cx"> 
</span><del>-    RefPtr&lt;ApplePayValidateMerchantEvent&gt; event = ApplePayValidateMerchantEvent::create(eventNames().validatemerchantEvent, validationURL);
-    dispatchEvent(*event);
</del><ins>+    auto event = ApplePayValidateMerchantEvent::create(eventNames().validatemerchantEvent, validationURL);
+    dispatchEvent(event.get());
</ins><span class="cx"> }
</span><span class="cx"> 
</span><span class="cx"> void ApplePaySession::didAuthorizePayment(const Payment&amp; payment)
</span><span class="lines">@@ -1063,8 +1014,8 @@
</span><span class="cx"> 
</span><span class="cx">     m_state = State::Authorized;
</span><span class="cx"> 
</span><del>-    RefPtr&lt;ApplePayPaymentAuthorizedEvent&gt; event = ApplePayPaymentAuthorizedEvent::create(eventNames().paymentauthorizedEvent, payment);
-    dispatchEvent(*event);
</del><ins>+    auto event = ApplePayPaymentAuthorizedEvent::create(eventNames().paymentauthorizedEvent, payment);
+    dispatchEvent(event.get());
</ins><span class="cx"> }
</span><span class="cx"> 
</span><span class="cx"> void ApplePaySession::didSelectShippingMethod(const PaymentRequest::ShippingMethod&amp; shippingMethod)
</span><span class="lines">@@ -1077,8 +1028,8 @@
</span><span class="cx">     }
</span><span class="cx"> 
</span><span class="cx">     m_state = State::ShippingMethodSelected;
</span><del>-    RefPtr&lt;ApplePayShippingMethodSelectedEvent&gt; event = ApplePayShippingMethodSelectedEvent::create(eventNames().shippingmethodselectedEvent, shippingMethod);
-    dispatchEvent(*event);
</del><ins>+    auto event = ApplePayShippingMethodSelectedEvent::create(eventNames().shippingmethodselectedEvent, shippingMethod);
+    dispatchEvent(event.get());
</ins><span class="cx"> }
</span><span class="cx"> 
</span><span class="cx"> void ApplePaySession::didSelectShippingContact(const PaymentContact&amp; shippingContact)
</span><span class="lines">@@ -1091,8 +1042,8 @@
</span><span class="cx">     }
</span><span class="cx"> 
</span><span class="cx">     m_state = State::ShippingContactSelected;
</span><del>-    RefPtr&lt;ApplePayShippingContactSelectedEvent&gt; event = ApplePayShippingContactSelectedEvent::create(eventNames().shippingcontactselectedEvent, shippingContact);
-    dispatchEvent(*event);
</del><ins>+    auto event = ApplePayShippingContactSelectedEvent::create(eventNames().shippingcontactselectedEvent, shippingContact);
+    dispatchEvent(event.get());
</ins><span class="cx"> }
</span><span class="cx"> 
</span><span class="cx"> void ApplePaySession::didSelectPaymentMethod(const PaymentMethod&amp; paymentMethod)
</span><span class="lines">@@ -1105,8 +1056,8 @@
</span><span class="cx">     }
</span><span class="cx"> 
</span><span class="cx">     m_state = State::PaymentMethodSelected;
</span><del>-    RefPtr&lt;ApplePayPaymentMethodSelectedEvent&gt; event = ApplePayPaymentMethodSelectedEvent::create(eventNames().paymentmethodselectedEvent, paymentMethod);
-    dispatchEvent(*event);
</del><ins>+    auto event = ApplePayPaymentMethodSelectedEvent::create(eventNames().paymentmethodselectedEvent, paymentMethod);
+    dispatchEvent(event.get());
</ins><span class="cx"> }
</span><span class="cx"> 
</span><span class="cx"> void ApplePaySession::didCancelPayment()
</span><span class="lines">@@ -1115,8 +1066,8 @@
</span><span class="cx"> 
</span><span class="cx">     m_state = State::Canceled;
</span><span class="cx"> 
</span><del>-    RefPtr&lt;Event&gt; event = Event::create(eventNames().cancelEvent, false, false);
-    dispatchEvent(*event);
</del><ins>+    auto event = Event::create(eventNames().cancelEvent, false, false);
+    dispatchEvent(event.get());
</ins><span class="cx"> 
</span><span class="cx">     didReachFinalState();
</span><span class="cx"> }
</span><span class="lines">@@ -1157,7 +1108,7 @@
</span><span class="cx"> 
</span><span class="cx"> PaymentCoordinator&amp; ApplePaySession::paymentCoordinator() const
</span><span class="cx"> {
</span><del>-    return downcast&lt;Document&gt;(scriptExecutionContext())-&gt;frame()-&gt;mainFrame().paymentCoordinator();
</del><ins>+    return downcast&lt;Document&gt;(*scriptExecutionContext()).frame()-&gt;mainFrame().paymentCoordinator();
</ins><span class="cx"> }
</span><span class="cx"> 
</span><span class="cx"> bool ApplePaySession::canBegin() const
</span></span></pre></div>
<a id="trunkSourceWebCoreModulesapplepayApplePaySessionh"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/Modules/applepay/ApplePaySession.h (206976 => 206977)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/Modules/applepay/ApplePaySession.h        2016-10-10 02:13:28 UTC (rev 206976)
+++ trunk/Source/WebCore/Modules/applepay/ApplePaySession.h        2016-10-10 02:14:05 UTC (rev 206977)
</span><span class="lines">@@ -29,7 +29,7 @@
</span><span class="cx"> 
</span><span class="cx"> #include &quot;ActiveDOMObject.h&quot;
</span><span class="cx"> #include &quot;EventTarget.h&quot;
</span><del>-#include &quot;ExceptionCode.h&quot;
</del><ins>+#include &quot;ExceptionOr.h&quot;
</ins><span class="cx"> #include &quot;PaymentRequest.h&quot;
</span><span class="cx"> #include &lt;wtf/Ref.h&gt;
</span><span class="cx"> #include &lt;wtf/RefCounted.h&gt;
</span><span class="lines">@@ -48,7 +48,7 @@
</span><span class="cx"> 
</span><span class="cx"> class ApplePaySession final : public RefCounted&lt;ApplePaySession&gt;, public ActiveDOMObject, public EventTargetWithInlineData {
</span><span class="cx"> public:
</span><del>-    static RefPtr&lt;ApplePaySession&gt; create(Document&amp;, unsigned version, const Dictionary&amp;, ExceptionCode&amp;);
</del><ins>+    static ExceptionOr&lt;Ref&lt;ApplePaySession&gt;&gt; create(Document&amp;, unsigned version, const Dictionary&amp;);
</ins><span class="cx">     virtual ~ApplePaySession();
</span><span class="cx"> 
</span><span class="cx">     // DOM API.
</span><span class="lines">@@ -61,18 +61,18 @@
</span><span class="cx">     static const unsigned short STATUS_PIN_INCORRECT = 6;
</span><span class="cx">     static const unsigned short STATUS_PIN_LOCKOUT = 7;
</span><span class="cx"> 
</span><del>-    static bool supportsVersion(ScriptExecutionContext&amp;, unsigned version, ExceptionCode&amp;);
-    static bool canMakePayments(ScriptExecutionContext&amp;, ExceptionCode&amp;);
-    static void canMakePaymentsWithActiveCard(ScriptExecutionContext&amp;, const String&amp; merchantIdentifier, Ref&lt;DeferredPromise&gt;&amp;&amp;, ExceptionCode&amp;);
-    static void openPaymentSetup(ScriptExecutionContext&amp;, const String&amp; merchantIdentifier, Ref&lt;DeferredPromise&gt;&amp;&amp;, ExceptionCode&amp;);
</del><ins>+    static ExceptionOr&lt;bool&gt; supportsVersion(ScriptExecutionContext&amp;, unsigned version);
+    static ExceptionOr&lt;bool&gt; canMakePayments(ScriptExecutionContext&amp;);
+    static ExceptionOr&lt;void&gt; canMakePaymentsWithActiveCard(ScriptExecutionContext&amp;, const String&amp; merchantIdentifier, Ref&lt;DeferredPromise&gt;&amp;&amp;);
+    static ExceptionOr&lt;void&gt; openPaymentSetup(ScriptExecutionContext&amp;, const String&amp; merchantIdentifier, Ref&lt;DeferredPromise&gt;&amp;&amp;);
</ins><span class="cx"> 
</span><del>-    void begin(ExceptionCode&amp;);
-    void abort(ExceptionCode&amp;);
-    void completeMerchantValidation(const Dictionary&amp; merchantSessionDictionary, ExceptionCode&amp;);
-    void completeShippingMethodSelection(unsigned short status, const Dictionary&amp; newTotal, const ArrayValue&amp; newLineItems, ExceptionCode&amp;);
-    void completeShippingContactSelection(unsigned short status, const ArrayValue&amp; newShippingMethods, const Dictionary&amp; newTotal, const ArrayValue&amp; newLineItems, ExceptionCode&amp;);
-    void completePaymentMethodSelection(const Dictionary&amp; newTotal, const ArrayValue&amp; newLineItems, ExceptionCode&amp;);
-    void completePayment(unsigned short status, ExceptionCode&amp;);
</del><ins>+    ExceptionOr&lt;void&gt; begin();
+    ExceptionOr&lt;void&gt; abort();
+    ExceptionOr&lt;void&gt; completeMerchantValidation(const Dictionary&amp; merchantSessionDictionary);
+    ExceptionOr&lt;void&gt; completeShippingMethodSelection(unsigned short status, const Dictionary&amp; newTotal, const ArrayValue&amp; newLineItems);
+    ExceptionOr&lt;void&gt; completeShippingContactSelection(unsigned short status, const ArrayValue&amp; newShippingMethods, const Dictionary&amp; newTotal, const ArrayValue&amp; newLineItems);
+    ExceptionOr&lt;void&gt; completePaymentMethodSelection(const Dictionary&amp; newTotal, const ArrayValue&amp; newLineItems);
+    ExceptionOr&lt;void&gt; completePayment(unsigned short status);
</ins><span class="cx"> 
</span><span class="cx">     const PaymentRequest&amp; paymentRequest() const { return m_paymentRequest; }
</span><span class="cx"> 
</span><span class="lines">@@ -126,13 +126,13 @@
</span><span class="cx"> 
</span><span class="cx">         Aborted,
</span><span class="cx">         Canceled,
</span><del>-    } m_state;
</del><ins>+    } m_state { State::Idle };
</ins><span class="cx"> 
</span><span class="cx">     enum class MerchantValidationState {
</span><span class="cx">         Idle,
</span><span class="cx">         ValidatingMerchant,
</span><span class="cx">         ValidationComplete,
</span><del>-    } m_merchantValidationState;
</del><ins>+    } m_merchantValidationState { MerchantValidationState::Idle };
</ins><span class="cx"> 
</span><span class="cx">     const PaymentRequest m_paymentRequest;
</span><span class="cx"> };
</span></span></pre></div>
<a id="trunkSourceWebCoreModulesapplepayApplePaySessionidl"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/Modules/applepay/ApplePaySession.idl (206976 => 206977)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/Modules/applepay/ApplePaySession.idl        2016-10-10 02:13:28 UTC (rev 206976)
+++ trunk/Source/WebCore/Modules/applepay/ApplePaySession.idl        2016-10-10 02:14:05 UTC (rev 206977)
</span><span class="lines">@@ -28,7 +28,7 @@
</span><span class="cx">     Conditional=APPLE_PAY,
</span><span class="cx">     Constructor(unsigned long version, Dictionary paymentRequest),
</span><span class="cx">     ConstructorCallWith=Document,
</span><del>-    ConstructorMayThrowLegacyException,
</del><ins>+    ConstructorMayThrowException,
</ins><span class="cx">     EnabledBySetting=ApplePay,
</span><span class="cx"> ] interface ApplePaySession : EventTarget {
</span><span class="cx">     const unsigned short STATUS_SUCCESS = 0;
</span><span class="lines">@@ -40,18 +40,18 @@
</span><span class="cx">     const unsigned short STATUS_PIN_INCORRECT = 6;
</span><span class="cx">     const unsigned short STATUS_PIN_LOCKOUT = 7;
</span><span class="cx"> 
</span><del>-    [CallWith=ScriptExecutionContext, MayThrowLegacyException] static boolean supportsVersion(unsigned long version);
-    [CallWith=ScriptExecutionContext, MayThrowLegacyException] static boolean canMakePayments();
-    [CallWith=ScriptExecutionContext, MayThrowLegacyException] static Promise canMakePaymentsWithActiveCard(DOMString merchantIdentifier);
-    [CallWith=ScriptExecutionContext, MayThrowLegacyException] static Promise openPaymentSetup(DOMString merchantIdentifier);
</del><ins>+    [CallWith=ScriptExecutionContext, MayThrowException] static boolean supportsVersion(unsigned long version);
+    [CallWith=ScriptExecutionContext, MayThrowException] static boolean canMakePayments();
+    [CallWith=ScriptExecutionContext, MayThrowException] static Promise canMakePaymentsWithActiveCard(DOMString merchantIdentifier);
+    [CallWith=ScriptExecutionContext, MayThrowException] static Promise openPaymentSetup(DOMString merchantIdentifier);
</ins><span class="cx"> 
</span><del>-    [MayThrowLegacyException] void begin();
-    [MayThrowLegacyException] void abort();
-    [MayThrowLegacyException] void completeMerchantValidation(Dictionary merchantSession);
-    [Custom, MayThrowLegacyException] void completeShippingMethodSelection(unsigned short status, Dictionary newTotal, sequence&lt;Dictionary&gt; newLineItems);
-    [Custom, MayThrowLegacyException] void completeShippingContactSelection(unsigned short status, sequence&lt;Dictionary&gt; newShippingMethods, Dictionary newTotal, sequence&lt;Dictionary&gt; newLineItems);
-    [Custom, MayThrowLegacyException] void completePaymentMethodSelection(Dictionary newTotal, sequence&lt;Dictionary&gt; newLineItems);
-    [MayThrowLegacyException] void completePayment(unsigned short status);
</del><ins>+    [MayThrowException] void begin();
+    [MayThrowException] void abort();
+    [MayThrowException] void completeMerchantValidation(Dictionary merchantSession);
+    [Custom, MayThrowException] void completeShippingMethodSelection(unsigned short status, Dictionary newTotal, sequence&lt;Dictionary&gt; newLineItems);
+    [Custom, MayThrowException] void completeShippingContactSelection(unsigned short status, sequence&lt;Dictionary&gt; newShippingMethods, Dictionary newTotal, sequence&lt;Dictionary&gt; newLineItems);
+    [Custom, MayThrowException] void completePaymentMethodSelection(Dictionary newTotal, sequence&lt;Dictionary&gt; newLineItems);
+    [MayThrowException] void completePayment(unsigned short status);
</ins><span class="cx"> 
</span><span class="cx">     attribute EventHandler onvalidatemerchant;
</span><span class="cx">     attribute EventHandler onpaymentmethodselected;
</span></span></pre></div>
<a id="trunkSourceWebCorebindingsjsJSApplePaySessionCustomcpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/bindings/js/JSApplePaySessionCustom.cpp (206976 => 206977)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/bindings/js/JSApplePaySessionCustom.cpp        2016-10-10 02:13:28 UTC (rev 206976)
+++ trunk/Source/WebCore/bindings/js/JSApplePaySessionCustom.cpp        2016-10-10 02:14:05 UTC (rev 206977)
</span><span class="lines">@@ -53,7 +53,6 @@
</span><span class="cx">     if (UNLIKELY(state.argumentCount() &lt; 3))
</span><span class="cx">         return JSValue::decode(throwVMError(&amp;state, scope, createNotEnoughArgumentsError(&amp;state)));
</span><span class="cx"> 
</span><del>-    ExceptionCode ec = 0;
</del><span class="cx">     uint16_t status = convert&lt;uint16_t&gt;(state, state.argument(0), NormalConversion);
</span><span class="cx">     RETURN_IF_EXCEPTION(scope, JSValue());
</span><span class="cx"> 
</span><span class="lines">@@ -62,8 +61,7 @@
</span><span class="cx"> 
</span><span class="cx">     ArrayValue newLineItems { &amp;state, state.argument(2) };
</span><span class="cx">     RETURN_IF_EXCEPTION(scope, JSValue());
</span><del>-    impl.completeShippingMethodSelection(status, newTotal, newLineItems, ec);
-    setDOMException(&amp;state, ec);
</del><ins>+    propagateException(state, scope, impl.completeShippingMethodSelection(status, newTotal, newLineItems));
</ins><span class="cx"> 
</span><span class="cx">     return jsUndefined();
</span><span class="cx"> }
</span><span class="lines">@@ -83,7 +81,6 @@
</span><span class="cx">     if (UNLIKELY(state.argumentCount() &lt; 4))
</span><span class="cx">         return JSValue::decode(throwVMError(&amp;state, scope, createNotEnoughArgumentsError(&amp;state)));
</span><span class="cx"> 
</span><del>-    ExceptionCode ec = 0;
</del><span class="cx">     uint16_t status = convert&lt;uint16_t&gt;(state, state.argument(0), NormalConversion);
</span><span class="cx">     RETURN_IF_EXCEPTION(scope, JSValue());
</span><span class="cx"> 
</span><span class="lines">@@ -95,9 +92,9 @@
</span><span class="cx"> 
</span><span class="cx">     ArrayValue newLineItems { &amp;state, state.argument(3) };
</span><span class="cx">     RETURN_IF_EXCEPTION(scope, JSValue());
</span><del>-    impl.completeShippingContactSelection(status, newShippingMethods, newTotal, newLineItems, ec);
-    setDOMException(&amp;state, ec);
</del><span class="cx"> 
</span><ins>+    propagateException(state, scope, impl.completeShippingContactSelection(status, newShippingMethods, newTotal, newLineItems));
+
</ins><span class="cx">     return jsUndefined();
</span><span class="cx"> }
</span><span class="cx"> 
</span><span class="lines">@@ -116,15 +113,14 @@
</span><span class="cx">     if (UNLIKELY(state.argumentCount() &lt; 2))
</span><span class="cx">         return JSValue::decode(throwVMError(&amp;state, scope, createNotEnoughArgumentsError(&amp;state)));
</span><span class="cx"> 
</span><del>-    ExceptionCode ec = 0;
</del><span class="cx">     Dictionary newTotal = { &amp;state, state.argument(0) };
</span><span class="cx">     RETURN_IF_EXCEPTION(scope, JSValue());
</span><span class="cx"> 
</span><span class="cx">     ArrayValue newLineItems { &amp;state, state.argument(1) };
</span><span class="cx">     RETURN_IF_EXCEPTION(scope, JSValue());
</span><del>-    impl.completePaymentMethodSelection(newTotal, newLineItems, ec);
-    setDOMException(&amp;state, ec);
</del><span class="cx"> 
</span><ins>+    propagateException(state, scope, impl.completePaymentMethodSelection(newTotal, newLineItems));
+
</ins><span class="cx">     return jsUndefined();
</span><span class="cx"> }
</span><span class="cx"> 
</span></span></pre></div>
<a id="trunkSourceWebCorebindingsjsJSDOMBindingh"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/bindings/js/JSDOMBinding.h (206976 => 206977)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/bindings/js/JSDOMBinding.h        2016-10-10 02:13:28 UTC (rev 206976)
+++ trunk/Source/WebCore/bindings/js/JSDOMBinding.h        2016-10-10 02:14:05 UTC (rev 206977)
</span><span class="lines">@@ -916,6 +916,15 @@
</span><span class="cx">     return toJS(&amp;state, &amp;globalObject, value.releaseReturnValue());
</span><span class="cx"> }
</span><span class="cx"> 
</span><ins>+inline JSC::JSValue toJSBoolean(JSC::ExecState&amp; state, JSC::ThrowScope&amp; throwScope, ExceptionOr&lt;bool&gt;&amp;&amp; value)
+{
+    if (UNLIKELY(value.hasException())) {
+        propagateException(state, throwScope, value.releaseException());
+        return { };
+    }
+    return JSC::jsBoolean(value.releaseReturnValue());
+}
+
</ins><span class="cx"> template&lt;typename T&gt; inline JSC::JSValue toJSNewlyCreated(JSC::ExecState&amp; state, JSDOMGlobalObject&amp; globalObject, JSC::ThrowScope&amp; throwScope, ExceptionOr&lt;T&gt;&amp;&amp; value)
</span><span class="cx"> {
</span><span class="cx">     if (UNLIKELY(value.hasException())) {
</span></span></pre></div>
<a id="trunkSourceWebCorebindingsscriptsCodeGeneratorJSpm"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/bindings/scripts/CodeGeneratorJS.pm (206976 => 206977)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/bindings/scripts/CodeGeneratorJS.pm        2016-10-10 02:13:28 UTC (rev 206976)
+++ trunk/Source/WebCore/bindings/scripts/CodeGeneratorJS.pm        2016-10-10 02:14:05 UTC (rev 206977)
</span><span class="lines">@@ -5538,7 +5538,11 @@
</span><span class="cx">             }
</span><span class="cx"> 
</span><span class="cx">             push(@$outputArray, &quot;    RETURN_IF_EXCEPTION(throwScope, encodedJSValue());\n&quot;) if $codeGenerator-&gt;ExtendedAttributeContains($interface-&gt;extendedAttributes-&gt;{ConstructorCallWith}, &quot;ScriptState&quot;);
</span><del>-            push(@$outputArray, &quot;    return JSValue::encode(toJSNewlyCreated(state, castedThis-&gt;globalObject(), WTFMove(object)));\n&quot;);
</del><ins>+            if ($interface-&gt;extendedAttributes-&gt;{ConstructorMayThrowException}) {
+                push(@$outputArray, &quot;    return JSValue::encode(toJSNewlyCreated(*state, *castedThis-&gt;globalObject(), throwScope, WTFMove(object)));\n&quot;);
+            } else {
+                push(@$outputArray, &quot;    return JSValue::encode(toJSNewlyCreated(state, castedThis-&gt;globalObject(), WTFMove(object)));\n&quot;);
+            }
</ins><span class="cx">             push(@$outputArray, &quot;}\n\n&quot;);
</span><span class="cx">         }
</span><span class="cx">     }
</span></span></pre></div>
<a id="trunkSourceWebCorebindingsscriptsIDLAttributestxt"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/bindings/scripts/IDLAttributes.txt (206976 => 206977)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/bindings/scripts/IDLAttributes.txt        2016-10-10 02:13:28 UTC (rev 206976)
+++ trunk/Source/WebCore/bindings/scripts/IDLAttributes.txt        2016-10-10 02:14:05 UTC (rev 206977)
</span><span class="lines">@@ -33,6 +33,7 @@
</span><span class="cx"> Constructor
</span><span class="cx"> ConstructorCallWith=Document|ScriptExecutionContext|ScriptState
</span><span class="cx"> ConstructorConditional=*
</span><ins>+ConstructorMayThrowException
</ins><span class="cx"> ConstructorMayThrowLegacyException
</span><span class="cx"> ConstructorTemplate=Event|TypedArray
</span><span class="cx"> Custom
</span></span></pre>
</div>
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