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<div id="msg">
<dl class="meta">
<dt>Revision</dt> <dd><a href="http://trac.webkit.org/projects/webkit/changeset/245936">245936</a></dd>
<dt>Author</dt> <dd>alancoon@apple.com</dd>
<dt>Date</dt> <dd>2019-05-30 17:33:38 -0700 (Thu, 30 May 2019)</dd>
</dl>

<h3>Log Message</h3>
<pre>Apply patch. rdar://problem/51056572</pre>

<h3>Modified Paths</h3>
<ul>
<li><a href="#branchessafari607branchSourceWebKitSharedAPICocoaRemoteObjectRegistryh">branches/safari-607-branch/Source/WebKit/Shared/API/Cocoa/RemoteObjectRegistry.h</a></li>
<li><a href="#branchessafari607branchSourceWebKitSharedAPICocoaRemoteObjectRegistrymm">branches/safari-607-branch/Source/WebKit/Shared/API/Cocoa/RemoteObjectRegistry.mm</a></li>
<li><a href="#branchessafari607branchSourceWebKitSharedAPICocoa_WKRemoteObjectRegistrymm">branches/safari-607-branch/Source/WebKit/Shared/API/Cocoa/_WKRemoteObjectRegistry.mm</a></li>
<li><a href="#branchessafari607branchSourceWebKitWebProcessInjectedBundleAPImacWKWebProcessPlugInBrowserContextControllermm">branches/safari-607-branch/Source/WebKit/WebProcess/InjectedBundle/API/mac/WKWebProcessPlugInBrowserContextController.mm</a></li>
<li><a href="#branchessafari607branchSourceWebKitWebProcessWebPageCocoaWebPageCocoamm">branches/safari-607-branch/Source/WebKit/WebProcess/WebPage/Cocoa/WebPageCocoa.mm</a></li>
<li><a href="#branchessafari607branchSourceWebKitWebProcessWebPageWebPagecpp">branches/safari-607-branch/Source/WebKit/WebProcess/WebPage/WebPage.cpp</a></li>
<li><a href="#branchessafari607branchSourceWebKitWebProcessWebPageWebPageh">branches/safari-607-branch/Source/WebKit/WebProcess/WebPage/WebPage.h</a></li>
<li><a href="#branchessafari607branchToolsTestWebKitAPITestsWebKitCocoaBundleRetainPagePlugInmm">branches/safari-607-branch/Tools/TestWebKitAPI/Tests/WebKitCocoa/BundleRetainPagePlugIn.mm</a></li>
</ul>

</div>
<div id="patch">
<h3>Diff</h3>
<a id="branchessafari607branchSourceWebKitSharedAPICocoaRemoteObjectRegistryh"></a>
<div class="modfile"><h4>Modified: branches/safari-607-branch/Source/WebKit/Shared/API/Cocoa/RemoteObjectRegistry.h (245935 => 245936)</h4>
<pre class="diff"><span>
<span class="info">--- branches/safari-607-branch/Source/WebKit/Shared/API/Cocoa/RemoteObjectRegistry.h 2019-05-31 00:33:35 UTC (rev 245935)
+++ branches/safari-607-branch/Source/WebKit/Shared/API/Cocoa/RemoteObjectRegistry.h    2019-05-31 00:33:38 UTC (rev 245936)
</span><span class="lines">@@ -23,12 +23,13 @@
</span><span class="cx">  * THE POSSIBILITY OF SUCH DAMAGE.
</span><span class="cx">  */
</span><span class="cx"> 
</span><del>-#ifndef RemoteObjectRegistry_h
-#define RemoteObjectRegistry_h
</del><ins>+#pragma once
</ins><span class="cx"> 
</span><span class="cx"> #include "MessageReceiver.h"
</span><span class="cx"> #include "ProcessThrottler.h"
</span><span class="cx"> #include <wtf/Function.h>
</span><ins>+#include <wtf/WeakObjCPtr.h>
+#include <wtf/WeakPtr.h>
</ins><span class="cx"> 
</span><span class="cx"> OBJC_CLASS _WKRemoteObjectRegistry;
</span><span class="cx"> 
</span><span class="lines">@@ -43,7 +44,7 @@
</span><span class="cx"> class WebPage;
</span><span class="cx"> class WebPageProxy;
</span><span class="cx"> 
</span><del>-class RemoteObjectRegistry final : public IPC::MessageReceiver {
</del><ins>+class RemoteObjectRegistry final : public CanMakeWeakPtr<RemoteObjectRegistry>, public IPC::MessageReceiver {
</ins><span class="cx"> public:
</span><span class="cx">     RemoteObjectRegistry(_WKRemoteObjectRegistry *, WebPage&);
</span><span class="cx">     RemoteObjectRegistry(_WKRemoteObjectRegistry *, WebPageProxy&);
</span><span class="lines">@@ -54,6 +55,8 @@
</span><span class="cx">     void sendReplyBlock(uint64_t replyID, const UserData& blockInvocation);
</span><span class="cx">     void sendUnusedReply(uint64_t replyID);
</span><span class="cx"> 
</span><ins>+    void close();
+    
</ins><span class="cx"> private:
</span><span class="cx">     // IPC::MessageReceiver
</span><span class="cx">     void didReceiveMessage(IPC::Connection&, IPC::Decoder&) override;
</span><span class="lines">@@ -63,12 +66,12 @@
</span><span class="cx">     void callReplyBlock(uint64_t replyID, const UserData& blockInvocation);
</span><span class="cx">     void releaseUnusedReplyBlock(uint64_t replyID);
</span><span class="cx"> 
</span><del>-    _WKRemoteObjectRegistry *m_remoteObjectRegistry;
</del><ins>+    WeakObjCPtr<_WKRemoteObjectRegistry> m_remoteObjectRegistry;
</ins><span class="cx">     IPC::MessageSender& m_messageSender;
</span><del>-    WTF::Function<ProcessThrottler::BackgroundActivityToken()> m_takeBackgroundActivityToken;
</del><ins>+    Function<ProcessThrottler::BackgroundActivityToken()> m_takeBackgroundActivityToken;
</ins><span class="cx">     HashMap<uint64_t, ProcessThrottler::BackgroundActivityToken> m_pendingReplies;
</span><ins>+    bool m_isRegisteredAsMessageReceiver { false };
+    uint64_t m_messageReceiverID { 0 };
</ins><span class="cx"> };
</span><span class="cx"> 
</span><span class="cx"> } // namespace WebKit
</span><del>-
-#endif // RemoteObjectRegistry_h
</del></span></pre></div>
<a id="branchessafari607branchSourceWebKitSharedAPICocoaRemoteObjectRegistrymm"></a>
<div class="modfile"><h4>Modified: branches/safari-607-branch/Source/WebKit/Shared/API/Cocoa/RemoteObjectRegistry.mm (245935 => 245936)</h4>
<pre class="diff"><span>
<span class="info">--- branches/safari-607-branch/Source/WebKit/Shared/API/Cocoa/RemoteObjectRegistry.mm        2019-05-31 00:33:35 UTC (rev 245935)
+++ branches/safari-607-branch/Source/WebKit/Shared/API/Cocoa/RemoteObjectRegistry.mm   2019-05-31 00:33:38 UTC (rev 245936)
</span><span class="lines">@@ -32,6 +32,7 @@
</span><span class="cx"> #import "RemoteObjectRegistryMessages.h"
</span><span class="cx"> #import "UserData.h"
</span><span class="cx"> #import "WebPage.h"
</span><ins>+#import "WebProcess.h"
</ins><span class="cx"> #import "WebPageProxy.h"
</span><span class="cx"> #import "WebProcessProxy.h"
</span><span class="cx"> #import "_WKRemoteObjectRegistryInternal.h"
</span><span class="lines">@@ -42,7 +43,11 @@
</span><span class="cx">     : m_remoteObjectRegistry(remoteObjectRegistry)
</span><span class="cx">     , m_messageSender(page)
</span><span class="cx">     , m_takeBackgroundActivityToken([] { return ProcessThrottler::BackgroundActivityToken(); })
</span><ins>+    , m_isRegisteredAsMessageReceiver(true)
+    , m_messageReceiverID(page.pageID())
</ins><span class="cx"> {
</span><ins>+    WebProcess::singleton().addMessageReceiver(Messages::RemoteObjectRegistry::messageReceiverName(), m_messageReceiverID, *this);
+    page.setRemoteObjectRegistry(*this);
</ins><span class="cx"> }
</span><span class="cx"> 
</span><span class="cx"> RemoteObjectRegistry::RemoteObjectRegistry(_WKRemoteObjectRegistry *remoteObjectRegistry, WebPageProxy& page)
</span><span class="lines">@@ -55,8 +60,17 @@
</span><span class="cx"> 
</span><span class="cx"> RemoteObjectRegistry::~RemoteObjectRegistry()
</span><span class="cx"> {
</span><ins>+    close();
</ins><span class="cx"> }
</span><span class="cx"> 
</span><ins>+    void RemoteObjectRegistry::close()
+    {
+        if (m_isRegisteredAsMessageReceiver) {
+            WebProcess::singleton().removeMessageReceiver(Messages::RemoteObjectRegistry::messageReceiverName(), m_messageReceiverID);
+            m_isRegisteredAsMessageReceiver = false;
+        }
+    }
+    
</ins><span class="cx"> void RemoteObjectRegistry::sendInvocation(const RemoteObjectInvocation& invocation)
</span><span class="cx"> {
</span><span class="cx">     if (auto* replyInfo = invocation.replyInfo()) {
</span></span></pre></div>
<a id="branchessafari607branchSourceWebKitSharedAPICocoa_WKRemoteObjectRegistrymm"></a>
<div class="modfile"><h4>Modified: branches/safari-607-branch/Source/WebKit/Shared/API/Cocoa/_WKRemoteObjectRegistry.mm (245935 => 245936)</h4>
<pre class="diff"><span>
<span class="info">--- branches/safari-607-branch/Source/WebKit/Shared/API/Cocoa/_WKRemoteObjectRegistry.mm     2019-05-31 00:33:35 UTC (rev 245935)
+++ branches/safari-607-branch/Source/WebKit/Shared/API/Cocoa/_WKRemoteObjectRegistry.mm        2019-05-31 00:33:38 UTC (rev 245936)
</span><span class="lines">@@ -38,6 +38,7 @@
</span><span class="cx"> #import "WKRemoteObject.h"
</span><span class="cx"> #import "WKRemoteObjectCoder.h"
</span><span class="cx"> #import "WKSharedAPICast.h"
</span><ins>+#import "WebPage.h"
</ins><span class="cx"> #import "_WKRemoteObjectInterface.h"
</span><span class="cx"> #import <objc/runtime.h>
</span><span class="cx"> 
</span></span></pre></div>
<a id="branchessafari607branchSourceWebKitWebProcessInjectedBundleAPImacWKWebProcessPlugInBrowserContextControllermm"></a>
<div class="modfile"><h4>Modified: branches/safari-607-branch/Source/WebKit/WebProcess/InjectedBundle/API/mac/WKWebProcessPlugInBrowserContextController.mm (245935 => 245936)</h4>
<pre class="diff"><span>
<span class="info">--- branches/safari-607-branch/Source/WebKit/WebProcess/InjectedBundle/API/mac/WKWebProcessPlugInBrowserContextController.mm 2019-05-31 00:33:35 UTC (rev 245935)
+++ branches/safari-607-branch/Source/WebKit/WebProcess/InjectedBundle/API/mac/WKWebProcessPlugInBrowserContextController.mm    2019-05-31 00:33:38 UTC (rev 245936)
</span><span class="lines">@@ -360,10 +360,8 @@
</span><span class="cx"> 
</span><span class="cx"> - (void)dealloc
</span><span class="cx"> {
</span><del>-    if (_remoteObjectRegistry) {
-        WebKit::WebProcess::singleton().removeMessageReceiver(Messages::RemoteObjectRegistry::messageReceiverName(), _page->pageID());
</del><ins>+    if (_remoteObjectRegistry)
</ins><span class="cx">         [_remoteObjectRegistry _invalidate];
</span><del>-    }
</del><span class="cx"> 
</span><span class="cx">     _page->~WebPage();
</span><span class="cx"> 
</span><span class="lines">@@ -426,10 +424,8 @@
</span><span class="cx"> 
</span><span class="cx"> - (_WKRemoteObjectRegistry *)_remoteObjectRegistry
</span><span class="cx"> {
</span><del>-    if (!_remoteObjectRegistry) {
</del><ins>+    if (!_remoteObjectRegistry)
</ins><span class="cx">         _remoteObjectRegistry = adoptNS([[_WKRemoteObjectRegistry alloc] _initWithWebPage:*_page]);
</span><del>-        WebKit::WebProcess::singleton().addMessageReceiver(Messages::RemoteObjectRegistry::messageReceiverName(), _page->pageID(), [_remoteObjectRegistry remoteObjectRegistry]);
-    }
</del><span class="cx"> 
</span><span class="cx">     return _remoteObjectRegistry.get();
</span><span class="cx"> }
</span></span></pre></div>
<a id="branchessafari607branchSourceWebKitWebProcessWebPageCocoaWebPageCocoamm"></a>
<div class="modfile"><h4>Modified: branches/safari-607-branch/Source/WebKit/WebProcess/WebPage/Cocoa/WebPageCocoa.mm (245935 => 245936)</h4>
<pre class="diff"><span>
<span class="info">--- branches/safari-607-branch/Source/WebKit/WebProcess/WebPage/Cocoa/WebPageCocoa.mm        2019-05-31 00:33:35 UTC (rev 245935)
+++ branches/safari-607-branch/Source/WebKit/WebProcess/WebPage/Cocoa/WebPageCocoa.mm   2019-05-31 00:33:38 UTC (rev 245936)
</span><span class="lines">@@ -29,6 +29,7 @@
</span><span class="cx"> 
</span><span class="cx"> #import "LoadParameters.h"
</span><span class="cx"> #import "PluginView.h"
</span><ins>+#import "RemoteObjectRegistry.h"
</ins><span class="cx"> #import "WebPageProxyMessages.h"
</span><span class="cx"> #import <WebCore/DictionaryLookup.h>
</span><span class="cx"> #import <WebCore/Editor.h>
</span><span class="lines">@@ -185,6 +186,11 @@
</span><span class="cx">     send(Messages::WebPageProxy::RegisterWebProcessAccessibilityToken(dataToken));
</span><span class="cx"> }
</span><span class="cx"> 
</span><ins>+void WebPage::setRemoteObjectRegistry(RemoteObjectRegistry& registry)
+{
+    m_remoteObjectRegistry = makeWeakPtr(registry);
+}
+
</ins><span class="cx"> } // namespace WebKit
</span><span class="cx"> 
</span><span class="cx"> #endif // PLATFORM(COCOA)
</span></span></pre></div>
<a id="branchessafari607branchSourceWebKitWebProcessWebPageWebPagecpp"></a>
<div class="modfile"><h4>Modified: branches/safari-607-branch/Source/WebKit/WebProcess/WebPage/WebPage.cpp (245935 => 245936)</h4>
<pre class="diff"><span>
<span class="info">--- branches/safari-607-branch/Source/WebKit/WebProcess/WebPage/WebPage.cpp  2019-05-31 00:33:35 UTC (rev 245935)
+++ branches/safari-607-branch/Source/WebKit/WebProcess/WebPage/WebPage.cpp     2019-05-31 00:33:38 UTC (rev 245936)
</span><span class="lines">@@ -244,6 +244,8 @@
</span><span class="cx"> #include "PDFPlugin.h"
</span><span class="cx"> #include "PlaybackSessionManager.h"
</span><span class="cx"> #include "RemoteLayerTreeTransaction.h"
</span><ins>+#include "RemoteObjectRegistry.h"
+#include "RemoteObjectRegistryMessages.h"
</ins><span class="cx"> #include "TouchBarMenuData.h"
</span><span class="cx"> #include "TouchBarMenuItemData.h"
</span><span class="cx"> #include "VideoFullscreenManager.h"
</span><span class="lines">@@ -1294,6 +1296,8 @@
</span><span class="cx">     m_isRunningModal = false;
</span><span class="cx"> 
</span><span class="cx">     auto& webProcess = WebProcess::singleton();
</span><ins>+    if (m_remoteObjectRegistry)
+        m_remoteObjectRegistry->close();
</ins><span class="cx"> #if ENABLE(ASYNC_SCROLLING)
</span><span class="cx">     if (m_useAsyncScrolling)
</span><span class="cx">         webProcess.eventDispatcher().removeScrollingTreeForPage(this);
</span></span></pre></div>
<a id="branchessafari607branchSourceWebKitWebProcessWebPageWebPageh"></a>
<div class="modfile"><h4>Modified: branches/safari-607-branch/Source/WebKit/WebProcess/WebPage/WebPage.h (245935 => 245936)</h4>
<pre class="diff"><span>
<span class="info">--- branches/safari-607-branch/Source/WebKit/WebProcess/WebPage/WebPage.h    2019-05-31 00:33:35 UTC (rev 245935)
+++ branches/safari-607-branch/Source/WebKit/WebProcess/WebPage/WebPage.h       2019-05-31 00:33:38 UTC (rev 245936)
</span><span class="lines">@@ -204,6 +204,7 @@
</span><span class="cx"> class PDFPlugin;
</span><span class="cx"> class PageBanner;
</span><span class="cx"> class PluginView;
</span><ins>+    class RemoteObjectRegistry;
</ins><span class="cx"> class RemoteWebInspectorUI;
</span><span class="cx"> class UserMediaPermissionRequestManager;
</span><span class="cx"> class ViewGestureGeometryCollector;
</span><span class="lines">@@ -1135,6 +1136,7 @@
</span><span class="cx"> 
</span><span class="cx">     void didReceiveWebPageMessage(IPC::Connection&, IPC::Decoder&);
</span><span class="cx"> 
</span><ins>+    void setRemoteObjectRegistry(RemoteObjectRegistry&);
</ins><span class="cx"> private:
</span><span class="cx">     WebPage(uint64_t pageID, WebPageCreationParameters&&);
</span><span class="cx"> 
</span><span class="lines">@@ -1804,6 +1806,9 @@
</span><span class="cx">     OptionSet<LayerTreeFreezeReason> m_LayerTreeFreezeReasons;
</span><span class="cx">     bool m_isSuspended { false };
</span><span class="cx">     bool m_needsFontAttributes { false };
</span><ins>+#if PLATFORM(COCOA)
+    WeakPtr<RemoteObjectRegistry> m_remoteObjectRegistry;
+#endif
</ins><span class="cx"> };
</span><span class="cx"> 
</span><span class="cx"> } // namespace WebKit
</span></span></pre></div>
<a id="branchessafari607branchToolsTestWebKitAPITestsWebKitCocoaBundleRetainPagePlugInmm"></a>
<div class="modfile"><h4>Modified: branches/safari-607-branch/Tools/TestWebKitAPI/Tests/WebKitCocoa/BundleRetainPagePlugIn.mm (245935 => 245936)</h4>
<pre class="diff"><span>
<span class="info">--- branches/safari-607-branch/Tools/TestWebKitAPI/Tests/WebKitCocoa/BundleRetainPagePlugIn.mm       2019-05-31 00:33:35 UTC (rev 245935)
+++ branches/safari-607-branch/Tools/TestWebKitAPI/Tests/WebKitCocoa/BundleRetainPagePlugIn.mm  2019-05-31 00:33:38 UTC (rev 245936)
</span><span class="lines">@@ -28,6 +28,7 @@
</span><span class="cx"> #if WK_API_ENABLED
</span><span class="cx"> 
</span><span class="cx"> #import <WebKit/WKWebProcessPlugIn.h>
</span><ins>+#import <WebKit/WKWebProcessPluginBrowserContextControllerPrivate.h>
</ins><span class="cx"> #import <wtf/RetainPtr.h>
</span><span class="cx"> 
</span><span class="cx"> @interface BundleRetainPagePlugIn : NSObject <WKWebProcessPlugIn>
</span><span class="lines">@@ -38,6 +39,10 @@
</span><span class="cx"> - (void)webProcessPlugIn:(WKWebProcessPlugInController *)plugInController didCreateBrowserContextController:(WKWebProcessPlugInBrowserContextController *)browserContextController
</span><span class="cx"> {
</span><span class="cx">     dispatch_after(dispatch_time(DISPATCH_TIME_NOW, 0.5*NSEC_PER_SEC), dispatch_get_main_queue(), [retainedPage = retainPtr(browserContextController)] { });
</span><ins>+    
+    // Instantiate a _WKRemoteObjectRegistry to test that its existence does not conflict with the existence
+    // of the _WKRemoteObjectRegistry from the other WebPage that will be in this process.
+    [browserContextController _remoteObjectRegistry];
</ins><span class="cx"> }
</span><span class="cx"> 
</span><span class="cx"> @end
</span></span></pre>
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