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<dt>Revision</dt> <dd><a href="http://trac.webkit.org/projects/webkit/changeset/212832">212832</a></dd>
<dt>Author</dt> <dd>cdumez@apple.com</dd>
<dt>Date</dt> <dd>2017-02-22 09:15:45 -0800 (Wed, 22 Feb 2017)</dd>
</dl>

<h3>Log Message</h3>
<pre>[WK2] Call processDidBecomeUnresponsive delegate when a background process is unresponsive
https://bugs.webkit.org/show_bug.cgi?id=168683
&lt;rdar://problem/30558745&gt;

Reviewed by Dan Bernstein.

Call processDidBecomeUnresponsive delegate when a background process is unresponsive
instead of killing it on WebKit side. This gives the client the choice about what it
wants to do about this process.

* UIProcess/API/APIProcessPoolConfiguration.cpp:
(API::ProcessPoolConfiguration::copy):
* UIProcess/API/APIProcessPoolConfiguration.h:
* UIProcess/API/C/WKContext.cpp:
* UIProcess/API/C/WKContextPrivate.h:
* UIProcess/BackgroundProcessResponsivenessTimer.cpp: Renamed from Source/WebKit2/UIProcess/UnresponsiveWebProcessTerminator.cpp.
(WebKit::BackgroundProcessResponsivenessTimer::BackgroundProcessResponsivenessTimer):
(WebKit::BackgroundProcessResponsivenessTimer::updateState):
(WebKit::BackgroundProcessResponsivenessTimer::timerFired):
* UIProcess/BackgroundProcessResponsivenessTimer.h: Renamed from Source/WebKit2/UIProcess/UnresponsiveWebProcessTerminator.h.
* UIProcess/WebPageProxy.cpp:
(WebKit::WebPageProxy::reattachToWebProcess):
(WebKit::WebPageProxy::dispatchActivityStateChange):
(WebKit::WebPageProxy::terminateProcess):
* UIProcess/WebPageProxy.h:
* UIProcess/WebProcessProxy.cpp:
(WebKit::m_backgroundResponsivenessTimer):
* UIProcess/WebProcessProxy.h:
* WebKit2.xcodeproj/project.pbxproj:</pre>

<h3>Modified Paths</h3>
<ul>
<li><a href="#trunkSourceWebKit2CMakeListstxt">trunk/Source/WebKit2/CMakeLists.txt</a></li>
<li><a href="#trunkSourceWebKit2ChangeLog">trunk/Source/WebKit2/ChangeLog</a></li>
<li><a href="#trunkSourceWebKit2UIProcessAPIAPIProcessPoolConfigurationcpp">trunk/Source/WebKit2/UIProcess/API/APIProcessPoolConfiguration.cpp</a></li>
<li><a href="#trunkSourceWebKit2UIProcessAPIAPIProcessPoolConfigurationh">trunk/Source/WebKit2/UIProcess/API/APIProcessPoolConfiguration.h</a></li>
<li><a href="#trunkSourceWebKit2UIProcessAPICWKContextcpp">trunk/Source/WebKit2/UIProcess/API/C/WKContext.cpp</a></li>
<li><a href="#trunkSourceWebKit2UIProcessAPICWKContextPrivateh">trunk/Source/WebKit2/UIProcess/API/C/WKContextPrivate.h</a></li>
<li><a href="#trunkSourceWebKit2UIProcessWebPageProxycpp">trunk/Source/WebKit2/UIProcess/WebPageProxy.cpp</a></li>
<li><a href="#trunkSourceWebKit2UIProcessWebPageProxyh">trunk/Source/WebKit2/UIProcess/WebPageProxy.h</a></li>
<li><a href="#trunkSourceWebKit2UIProcessWebProcessProxycpp">trunk/Source/WebKit2/UIProcess/WebProcessProxy.cpp</a></li>
<li><a href="#trunkSourceWebKit2UIProcessWebProcessProxyh">trunk/Source/WebKit2/UIProcess/WebProcessProxy.h</a></li>
<li><a href="#trunkSourceWebKit2WebKit2xcodeprojprojectpbxproj">trunk/Source/WebKit2/WebKit2.xcodeproj/project.pbxproj</a></li>
</ul>

<h3>Added Paths</h3>
<ul>
<li><a href="#trunkSourceWebKit2UIProcessBackgroundProcessResponsivenessTimercpp">trunk/Source/WebKit2/UIProcess/BackgroundProcessResponsivenessTimer.cpp</a></li>
<li><a href="#trunkSourceWebKit2UIProcessBackgroundProcessResponsivenessTimerh">trunk/Source/WebKit2/UIProcess/BackgroundProcessResponsivenessTimer.h</a></li>
</ul>

<h3>Removed Paths</h3>
<ul>
<li><a href="#trunkSourceWebKit2UIProcessUnresponsiveWebProcessTerminatorcpp">trunk/Source/WebKit2/UIProcess/UnresponsiveWebProcessTerminator.cpp</a></li>
<li><a href="#trunkSourceWebKit2UIProcessUnresponsiveWebProcessTerminatorh">trunk/Source/WebKit2/UIProcess/UnresponsiveWebProcessTerminator.h</a></li>
</ul>

</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunkSourceWebKit2CMakeListstxt"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/CMakeLists.txt (212831 => 212832)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/CMakeLists.txt        2017-02-22 17:05:22 UTC (rev 212831)
+++ trunk/Source/WebKit2/CMakeLists.txt        2017-02-22 17:15:45 UTC (rev 212832)
</span><span class="lines">@@ -273,6 +273,7 @@
</span><span class="cx"> 
</span><span class="cx">     Shared/WebsiteData/WebsiteData.cpp
</span><span class="cx"> 
</span><ins>+    UIProcess/BackgroundProcessResponsivenessTimer.cpp
</ins><span class="cx">     UIProcess/ChildProcessProxy.cpp
</span><span class="cx">     UIProcess/DrawingAreaProxy.cpp
</span><span class="cx">     UIProcess/FrameLoadState.cpp
</span><span class="lines">@@ -285,7 +286,6 @@
</span><span class="cx">     UIProcess/ResponsivenessTimer.cpp
</span><span class="cx">     UIProcess/StatisticsRequest.cpp
</span><span class="cx">     UIProcess/TextCheckerCompletion.cpp
</span><del>-    UIProcess/UnresponsiveWebProcessTerminator.cpp
</del><span class="cx">     UIProcess/UserMediaPermissionCheckProxy.cpp
</span><span class="cx">     UIProcess/UserMediaPermissionRequestManagerProxy.cpp
</span><span class="cx">     UIProcess/UserMediaPermissionRequestProxy.cpp
</span></span></pre></div>
<a id="trunkSourceWebKit2ChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/ChangeLog (212831 => 212832)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/ChangeLog        2017-02-22 17:05:22 UTC (rev 212831)
+++ trunk/Source/WebKit2/ChangeLog        2017-02-22 17:15:45 UTC (rev 212832)
</span><span class="lines">@@ -1,3 +1,35 @@
</span><ins>+2017-02-22  Chris Dumez  &lt;cdumez@apple.com&gt;
+
+        [WK2] Call processDidBecomeUnresponsive delegate when a background process is unresponsive
+        https://bugs.webkit.org/show_bug.cgi?id=168683
+        &lt;rdar://problem/30558745&gt;
+
+        Reviewed by Dan Bernstein.
+
+        Call processDidBecomeUnresponsive delegate when a background process is unresponsive
+        instead of killing it on WebKit side. This gives the client the choice about what it
+        wants to do about this process.
+
+        * UIProcess/API/APIProcessPoolConfiguration.cpp:
+        (API::ProcessPoolConfiguration::copy):
+        * UIProcess/API/APIProcessPoolConfiguration.h:
+        * UIProcess/API/C/WKContext.cpp:
+        * UIProcess/API/C/WKContextPrivate.h:
+        * UIProcess/BackgroundProcessResponsivenessTimer.cpp: Renamed from Source/WebKit2/UIProcess/UnresponsiveWebProcessTerminator.cpp.
+        (WebKit::BackgroundProcessResponsivenessTimer::BackgroundProcessResponsivenessTimer):
+        (WebKit::BackgroundProcessResponsivenessTimer::updateState):
+        (WebKit::BackgroundProcessResponsivenessTimer::timerFired):
+        * UIProcess/BackgroundProcessResponsivenessTimer.h: Renamed from Source/WebKit2/UIProcess/UnresponsiveWebProcessTerminator.h.
+        * UIProcess/WebPageProxy.cpp:
+        (WebKit::WebPageProxy::reattachToWebProcess):
+        (WebKit::WebPageProxy::dispatchActivityStateChange):
+        (WebKit::WebPageProxy::terminateProcess):
+        * UIProcess/WebPageProxy.h:
+        * UIProcess/WebProcessProxy.cpp:
+        (WebKit::m_backgroundResponsivenessTimer):
+        * UIProcess/WebProcessProxy.h:
+        * WebKit2.xcodeproj/project.pbxproj:
+
</ins><span class="cx"> 2017-02-22  Carlos Garcia Campos  &lt;cgarcia@igalia.com&gt;
</span><span class="cx"> 
</span><span class="cx">         NetworkProcess: Stop disabling buffering when NETWORK_CACHE is disabled in build
</span></span></pre></div>
<a id="trunkSourceWebKit2UIProcessAPIAPIProcessPoolConfigurationcpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/UIProcess/API/APIProcessPoolConfiguration.cpp (212831 => 212832)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/UIProcess/API/APIProcessPoolConfiguration.cpp        2017-02-22 17:05:22 UTC (rev 212831)
+++ trunk/Source/WebKit2/UIProcess/API/APIProcessPoolConfiguration.cpp        2017-02-22 17:15:45 UTC (rev 212832)
</span><span class="lines">@@ -96,7 +96,6 @@
</span><span class="cx">     copy-&gt;m_maximumProcessCount = this-&gt;m_maximumProcessCount;
</span><span class="cx">     copy-&gt;m_cacheModel = this-&gt;m_cacheModel;
</span><span class="cx">     copy-&gt;m_diskCacheSpeculativeValidationEnabled = this-&gt;m_diskCacheSpeculativeValidationEnabled;
</span><del>-    copy-&gt;m_unresponsiveBackgroundProcessesTerminationEnabled = this-&gt;m_unresponsiveBackgroundProcessesTerminationEnabled;
</del><span class="cx">     copy-&gt;m_diskCacheSizeOverride = this-&gt;m_diskCacheSizeOverride;
</span><span class="cx">     copy-&gt;m_applicationCacheDirectory = this-&gt;m_applicationCacheDirectory;
</span><span class="cx">     copy-&gt;m_applicationCacheFlatFileSubdirectoryName = this-&gt;m_applicationCacheFlatFileSubdirectoryName;
</span></span></pre></div>
<a id="trunkSourceWebKit2UIProcessAPIAPIProcessPoolConfigurationh"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/UIProcess/API/APIProcessPoolConfiguration.h (212831 => 212832)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/UIProcess/API/APIProcessPoolConfiguration.h        2017-02-22 17:05:22 UTC (rev 212831)
+++ trunk/Source/WebKit2/UIProcess/API/APIProcessPoolConfiguration.h        2017-02-22 17:15:45 UTC (rev 212832)
</span><span class="lines">@@ -55,9 +55,6 @@
</span><span class="cx">     bool diskCacheSpeculativeValidationEnabled() const { return m_diskCacheSpeculativeValidationEnabled; }
</span><span class="cx">     void setDiskCacheSpeculativeValidationEnabled(bool enabled) { m_diskCacheSpeculativeValidationEnabled = enabled; }
</span><span class="cx"> 
</span><del>-    bool unresponsiveBackgroundProcessesTerminationEnabled() const { return m_unresponsiveBackgroundProcessesTerminationEnabled; }
-    void setUnresponsiveBackgroundProcessesTerminationEnabled(bool enabled) { m_unresponsiveBackgroundProcessesTerminationEnabled = enabled; }
-
</del><span class="cx">     WebKit::CacheModel cacheModel() const { return m_cacheModel; }
</span><span class="cx">     void setCacheModel(WebKit::CacheModel cacheModel) { m_cacheModel = cacheModel; }
</span><span class="cx"> 
</span><span class="lines">@@ -124,7 +121,6 @@
</span><span class="cx"> 
</span><span class="cx">     unsigned m_maximumProcessCount { 0 };
</span><span class="cx">     bool m_diskCacheSpeculativeValidationEnabled { false };
</span><del>-    bool m_unresponsiveBackgroundProcessesTerminationEnabled { false };
</del><span class="cx">     WebKit::CacheModel m_cacheModel { WebKit::CacheModelPrimaryWebBrowser };
</span><span class="cx">     int64_t m_diskCacheSizeOverride { -1 };
</span><span class="cx"> 
</span></span></pre></div>
<a id="trunkSourceWebKit2UIProcessAPICWKContextcpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/UIProcess/API/C/WKContext.cpp (212831 => 212832)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/UIProcess/API/C/WKContext.cpp        2017-02-22 17:05:22 UTC (rev 212831)
+++ trunk/Source/WebKit2/UIProcess/API/C/WKContext.cpp        2017-02-22 17:15:45 UTC (rev 212832)
</span><span class="lines">@@ -397,11 +397,6 @@
</span><span class="cx">     toImpl(contextRef)-&gt;configuration().setDiskCacheSpeculativeValidationEnabled(value);
</span><span class="cx"> }
</span><span class="cx"> 
</span><del>-void WKContextSetUnresponsiveBackgroundProcessesTerminationEnabled(WKContextRef contextRef, bool value)
-{
-    toImpl(contextRef)-&gt;configuration().setUnresponsiveBackgroundProcessesTerminationEnabled(value);
-}
-
</del><span class="cx"> WKCookieManagerRef WKContextGetCookieManager(WKContextRef contextRef)
</span><span class="cx"> {
</span><span class="cx">     return toAPI(toImpl(contextRef)-&gt;supplement&lt;WebCookieManagerProxy&gt;());
</span></span></pre></div>
<a id="trunkSourceWebKit2UIProcessAPICWKContextPrivateh"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/UIProcess/API/C/WKContextPrivate.h (212831 => 212832)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/UIProcess/API/C/WKContextPrivate.h        2017-02-22 17:05:22 UTC (rev 212831)
+++ trunk/Source/WebKit2/UIProcess/API/C/WKContextPrivate.h        2017-02-22 17:15:45 UTC (rev 212832)
</span><span class="lines">@@ -62,8 +62,6 @@
</span><span class="cx"> 
</span><span class="cx"> WK_EXPORT void WKContextSetDiskCacheSpeculativeValidationEnabled(WKContextRef context, bool value);
</span><span class="cx"> 
</span><del>-WK_EXPORT void WKContextSetUnresponsiveBackgroundProcessesTerminationEnabled(WKContextRef context, bool value);
-
</del><span class="cx"> WK_EXPORT void WKContextSetIconDatabasePath(WKContextRef context, WKStringRef iconDatabasePath);
</span><span class="cx"> 
</span><span class="cx"> WK_EXPORT void WKContextAllowSpecificHTTPSCertificateForHost(WKContextRef context, WKCertificateInfoRef certificate, WKStringRef host);
</span></span></pre></div>
<a id="trunkSourceWebKit2UIProcessBackgroundProcessResponsivenessTimercppfromrev212831trunkSourceWebKit2UIProcessUnresponsiveWebProcessTerminatorcpp"></a>
<div class="copfile"><h4>Copied: trunk/Source/WebKit2/UIProcess/BackgroundProcessResponsivenessTimer.cpp (from rev 212831, trunk/Source/WebKit2/UIProcess/UnresponsiveWebProcessTerminator.cpp) (0 => 212832)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/UIProcess/BackgroundProcessResponsivenessTimer.cpp                                (rev 0)
+++ trunk/Source/WebKit2/UIProcess/BackgroundProcessResponsivenessTimer.cpp        2017-02-22 17:15:45 UTC (rev 212832)
</span><span class="lines">@@ -0,0 +1,75 @@
</span><ins>+/*
+ * Copyright (C) 2017 Apple Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+ * THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include &quot;config.h&quot;
+#include &quot;BackgroundProcessResponsivenessTimer.h&quot;
+
+#include &quot;Logging.h&quot;
+
+namespace WebKit {
+
+static const std::chrono::seconds initialInterval { 20s };
+static const std::chrono::seconds maximumInterval { 8h };
+
+BackgroundProcessResponsivenessTimer::BackgroundProcessResponsivenessTimer(WebProcessProxy&amp; webProcessProxy)
+    : m_webProcessProxy(webProcessProxy)
+    , m_interval(initialInterval)
+    , m_timer(RunLoop::main(), this, &amp;BackgroundProcessResponsivenessTimer::timerFired)
+{
+}
+
+void BackgroundProcessResponsivenessTimer::updateState()
+{
+    if (!shouldBeActive()) {
+        if (m_timer.isActive()) {
+            m_interval = initialInterval;
+            m_timer.stop();
+        }
+        return;
+    }
+
+    if (!m_timer.isActive())
+        m_timer.startOneShot(m_interval);
+}
+
+void BackgroundProcessResponsivenessTimer::timerFired()
+{
+    ASSERT(shouldBeActive());
+    // WebProcessProxy::responsive() takes care of calling processDidBecomeUnresponsive for us.
+    m_webProcessProxy.isResponsive([this](bool processIsResponsive) {
+        if (processIsResponsive) {
+            // Exponential backoff to avoid waking up the process too often.
+            m_interval = std::min(m_interval * 2, maximumInterval);
+            m_timer.startOneShot(m_interval);
+            return;
+        }
+
+        RELEASE_LOG_ERROR(PerformanceLogging, &quot;Notified the client that a background WebProcess has become unresponsive&quot;);
+        WTFLogAlways(&quot;Notified the client that a background WebProcess has become unresponsive&quot;);
+        m_interval = initialInterval;
+    });
+}
+
+} // namespace WebKit
</ins></span></pre></div>
<a id="trunkSourceWebKit2UIProcessBackgroundProcessResponsivenessTimerhfromrev212831trunkSourceWebKit2UIProcessUnresponsiveWebProcessTerminatorh"></a>
<div class="copfile"><h4>Copied: trunk/Source/WebKit2/UIProcess/BackgroundProcessResponsivenessTimer.h (from rev 212831, trunk/Source/WebKit2/UIProcess/UnresponsiveWebProcessTerminator.h) (0 => 212832)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/UIProcess/BackgroundProcessResponsivenessTimer.h                                (rev 0)
+++ trunk/Source/WebKit2/UIProcess/BackgroundProcessResponsivenessTimer.h        2017-02-22 17:15:45 UTC (rev 212832)
</span><span class="lines">@@ -0,0 +1,47 @@
</span><ins>+/*
+ * Copyright (C) 2017 Apple Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+ * THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#pragma once
+
+#include &quot;WebProcessProxy.h&quot;
+#include &lt;wtf/RunLoop.h&gt;
+
+namespace WebKit {
+
+class BackgroundProcessResponsivenessTimer {
+public:
+    explicit BackgroundProcessResponsivenessTimer(WebProcessProxy&amp;);
+    void updateState();
+
+private:
+    void timerFired();
+    bool shouldBeActive() const { return !m_webProcessProxy.visiblePageCount() &amp;&amp; m_webProcessProxy.pageCount(); }
+
+    WebProcessProxy&amp; m_webProcessProxy;
+    std::chrono::seconds m_interval;
+    RunLoop::Timer&lt;BackgroundProcessResponsivenessTimer&gt; m_timer;
+};
+
+}
</ins></span></pre></div>
<a id="trunkSourceWebKit2UIProcessUnresponsiveWebProcessTerminatorcpp"></a>
<div class="delfile"><h4>Deleted: trunk/Source/WebKit2/UIProcess/UnresponsiveWebProcessTerminator.cpp (212831 => 212832)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/UIProcess/UnresponsiveWebProcessTerminator.cpp        2017-02-22 17:05:22 UTC (rev 212831)
+++ trunk/Source/WebKit2/UIProcess/UnresponsiveWebProcessTerminator.cpp        2017-02-22 17:15:45 UTC (rev 212832)
</span><span class="lines">@@ -1,82 +0,0 @@
</span><del>-/*
- * Copyright (C) 2017 Apple Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
- * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
- * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
- * THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include &quot;config.h&quot;
-#include &quot;UnresponsiveWebProcessTerminator.h&quot;
-
-#include &quot;Logging.h&quot;
-
-namespace WebKit {
-
-static const std::chrono::seconds initialInterval { 20s };
-static const std::chrono::seconds maximumInterval { 8h };
-
-UnresponsiveWebProcessTerminator::UnresponsiveWebProcessTerminator(WebProcessProxy&amp; webProcessProxy)
-    : m_webProcessProxy(webProcessProxy)
-    , m_interval(initialInterval)
-    , m_timer(RunLoop::main(), this, &amp;UnresponsiveWebProcessTerminator::timerFired)
-{
-}
-
-void UnresponsiveWebProcessTerminator::updateState()
-{
-    if (!shouldBeActive()) {
-        if (m_timer.isActive()) {
-            m_interval = initialInterval;
-            m_timer.stop();
-        }
-        return;
-    }
-
-    if (!m_timer.isActive())
-        m_timer.startOneShot(m_interval);
-}
-
-static Vector&lt;RefPtr&lt;WebPageProxy&gt;&gt; pagesCopy(WTF::IteratorRange&lt;WebProcessProxy::WebPageProxyMap::const_iterator::Values&gt; pages)
-{
-    Vector&lt;RefPtr&lt;WebPageProxy&gt;&gt; vector;
-    for (auto&amp; page : pages)
-        vector.append(page);
-    return vector;
-}
-
-void UnresponsiveWebProcessTerminator::timerFired()
-{
-    ASSERT(shouldBeActive());
-    m_webProcessProxy.isResponsive([this](bool processIsResponsive) {
-        if (processIsResponsive) {
-            // Exponential backoff to avoid waking up the process too often.
-            m_interval = std::min(m_interval * 2, maximumInterval);
-            m_timer.startOneShot(m_interval);
-            return;
-        }
-
-        RELEASE_LOG_ERROR(PerformanceLogging, &quot;Killing a background WebProcess because it is not responsive&quot;);
-        for (auto&amp; page : pagesCopy(m_webProcessProxy.pages()))
-            page-&gt;terminateProcess(WebPageProxy::TerminationReason::UnresponsiveWhileInBackground);
-    });
-}
-
-} // namespace WebKit
</del></span></pre></div>
<a id="trunkSourceWebKit2UIProcessUnresponsiveWebProcessTerminatorh"></a>
<div class="delfile"><h4>Deleted: trunk/Source/WebKit2/UIProcess/UnresponsiveWebProcessTerminator.h (212831 => 212832)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/UIProcess/UnresponsiveWebProcessTerminator.h        2017-02-22 17:05:22 UTC (rev 212831)
+++ trunk/Source/WebKit2/UIProcess/UnresponsiveWebProcessTerminator.h        2017-02-22 17:15:45 UTC (rev 212832)
</span><span class="lines">@@ -1,47 +0,0 @@
</span><del>-/*
- * Copyright (C) 2017 Apple Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
- * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
- * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
- * THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#pragma once
-
-#include &quot;WebProcessProxy.h&quot;
-#include &lt;wtf/RunLoop.h&gt;
-
-namespace WebKit {
-
-class UnresponsiveWebProcessTerminator {
-public:
-    explicit UnresponsiveWebProcessTerminator(WebProcessProxy&amp;);
-    void updateState();
-
-private:
-    void timerFired();
-    bool shouldBeActive() const { return !m_webProcessProxy.visiblePageCount() &amp;&amp; m_webProcessProxy.pageCount(); }
-
-    WebProcessProxy&amp; m_webProcessProxy;
-    std::chrono::seconds m_interval;
-    RunLoop::Timer&lt;UnresponsiveWebProcessTerminator&gt; m_timer;
-};
-
-}
</del></span></pre></div>
<a id="trunkSourceWebKit2UIProcessWebPageProxycpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/UIProcess/WebPageProxy.cpp (212831 => 212832)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/UIProcess/WebPageProxy.cpp        2017-02-22 17:05:22 UTC (rev 212831)
+++ trunk/Source/WebKit2/UIProcess/WebPageProxy.cpp        2017-02-22 17:15:45 UTC (rev 212832)
</span><span class="lines">@@ -712,7 +712,6 @@
</span><span class="cx">     ASSERT(m_process-&gt;state() == WebProcessProxy::State::Terminated);
</span><span class="cx"> 
</span><span class="cx">     m_isValid = true;
</span><del>-    m_wasKilledForBeingUnresponsiveWhileInBackground = false;
</del><span class="cx">     m_process-&gt;removeWebPage(m_pageID);
</span><span class="cx">     m_process-&gt;removeMessageReceiver(Messages::WebPageProxy::messageReceiverName(), m_pageID);
</span><span class="cx"> 
</span><span class="lines">@@ -1514,19 +1513,6 @@
</span><span class="cx">     }
</span><span class="cx"> }
</span><span class="cx"> 
</span><del>-void WebPageProxy::reloadAfterBeingKilledInBackground()
-{
-    ASSERT(!isValid());
-
-    RELEASE_LOG_IF_ALLOWED(&quot;%p - Reloading tab that was killed in the background&quot;, this);
-
-    // Only report as a crash if the page was ever visible, otherwise silently reload.
-    if (m_hasEverBeenVisible)
-        processDidCrash();
-    else
-        reattachToWebProcessForReload();
-}
-
</del><span class="cx"> void WebPageProxy::dispatchActivityStateChange()
</span><span class="cx"> {
</span><span class="cx"> #if PLATFORM(COCOA)
</span><span class="lines">@@ -1533,11 +1519,8 @@
</span><span class="cx">     m_activityStateChangeDispatcher-&gt;invalidate();
</span><span class="cx"> #endif
</span><span class="cx"> 
</span><del>-    if (!isValid()) {
-        if (m_potentiallyChangedActivityStateFlags &amp; ActivityState::IsVisible &amp;&amp; m_wasKilledForBeingUnresponsiveWhileInBackground)
-            reloadAfterBeingKilledInBackground();
</del><ins>+    if (!isValid())
</ins><span class="cx">         return;
</span><del>-    }
</del><span class="cx"> 
</span><span class="cx">     // If the visibility state may have changed, then so may the visually idle &amp; occluded agnostic state.
</span><span class="cx">     if (m_potentiallyChangedActivityStateFlags &amp; ActivityState::IsVisible)
</span><span class="lines">@@ -1576,10 +1559,9 @@
</span><span class="cx"> #endif
</span><span class="cx"> 
</span><span class="cx">     if (changed &amp; ActivityState::IsVisible) {
</span><del>-        if (isViewVisible()) {
-            m_hasEverBeenVisible = true;
</del><ins>+        if (isViewVisible())
</ins><span class="cx">             m_visiblePageToken = m_process-&gt;visiblePageToken();
</span><del>-        } else {
</del><ins>+        else {
</ins><span class="cx">             m_visiblePageToken = nullptr;
</span><span class="cx"> 
</span><span class="cx">             // If we've started the responsiveness timer as part of telling the web process to update the backing store
</span><span class="lines">@@ -2394,7 +2376,7 @@
</span><span class="cx">     m_process-&gt;send(Messages::WebPage::SetCustomTextEncodingName(encodingName), m_pageID);
</span><span class="cx"> }
</span><span class="cx"> 
</span><del>-void WebPageProxy::terminateProcess(TerminationReason terminationReason)
</del><ins>+void WebPageProxy::terminateProcess()
</ins><span class="cx"> {
</span><span class="cx">     // NOTE: This uses a check of m_isValid rather than calling isValid() since
</span><span class="cx">     // we want this to run even for pages being closed or that already closed.
</span><span class="lines">@@ -2403,7 +2385,6 @@
</span><span class="cx"> 
</span><span class="cx">     m_process-&gt;requestTermination();
</span><span class="cx">     resetStateAfterProcessExited();
</span><del>-    m_wasKilledForBeingUnresponsiveWhileInBackground = terminationReason == TerminationReason::UnresponsiveWhileInBackground;
</del><span class="cx"> }
</span><span class="cx"> 
</span><span class="cx"> SessionState WebPageProxy::sessionState(const std::function&lt;bool (WebBackForwardListItem&amp;)&gt;&amp; filter) const
</span></span></pre></div>
<a id="trunkSourceWebKit2UIProcessWebPageProxyh"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/UIProcess/WebPageProxy.h (212831 => 212832)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/UIProcess/WebPageProxy.h        2017-02-22 17:05:22 UTC (rev 212831)
+++ trunk/Source/WebKit2/UIProcess/WebPageProxy.h        2017-02-22 17:15:45 UTC (rev 212832)
</span><span class="lines">@@ -675,8 +675,7 @@
</span><span class="cx"> 
</span><span class="cx">     double estimatedProgress() const;
</span><span class="cx"> 
</span><del>-    enum class TerminationReason { UnresponsiveWhileInBackground, Other };
-    void terminateProcess(TerminationReason = TerminationReason::Other);
</del><ins>+    void terminateProcess();
</ins><span class="cx"> 
</span><span class="cx">     SessionState sessionState(const std::function&lt;bool (WebBackForwardListItem&amp;)&gt;&amp; = nullptr) const;
</span><span class="cx">     RefPtr&lt;API::Navigation&gt; restoreFromSessionState(SessionState, bool navigate);
</span><span class="lines">@@ -1575,7 +1574,6 @@
</span><span class="cx">     void dispatchActivityStateChange();
</span><span class="cx">     void viewDidLeaveWindow();
</span><span class="cx">     void viewDidEnterWindow();
</span><del>-    void reloadAfterBeingKilledInBackground();
</del><span class="cx"> 
</span><span class="cx"> #if PLATFORM(MAC)
</span><span class="cx">     void didPerformImmediateActionHitTest(const WebHitTestResultData&amp;, bool contentPreventsDefault, const UserData&amp;);
</span><span class="lines">@@ -1950,7 +1948,6 @@
</span><span class="cx">     bool m_hasHadSelectionChangesFromUserInteraction { false };
</span><span class="cx">     bool m_needsHiddenContentEditableQuirk { false };
</span><span class="cx">     bool m_needsPlainTextQuirk { false };
</span><del>-    bool m_hasEverBeenVisible { false };
</del><span class="cx"> 
</span><span class="cx"> #if ENABLE(MEDIA_SESSION)
</span><span class="cx">     bool m_hasMediaSessionWithActiveMediaElements { false };
</span><span class="lines">@@ -1976,7 +1973,6 @@
</span><span class="cx"> #endif
</span><span class="cx"> 
</span><span class="cx">     bool m_isUsingHighPerformanceWebGL { false };
</span><del>-    bool m_wasKilledForBeingUnresponsiveWhileInBackground { false };
</del><span class="cx">         
</span><span class="cx">     WeakPtrFactory&lt;WebPageProxy&gt; m_weakPtrFactory;
</span><span class="cx"> };
</span></span></pre></div>
<a id="trunkSourceWebKit2UIProcessWebProcessProxycpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/UIProcess/WebProcessProxy.cpp (212831 => 212832)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/UIProcess/WebProcessProxy.cpp        2017-02-22 17:05:22 UTC (rev 212831)
+++ trunk/Source/WebKit2/UIProcess/WebProcessProxy.cpp        2017-02-22 17:15:45 UTC (rev 212832)
</span><span class="lines">@@ -29,6 +29,7 @@
</span><span class="cx"> #include &quot;APIFrameHandle.h&quot;
</span><span class="cx"> #include &quot;APIPageGroupHandle.h&quot;
</span><span class="cx"> #include &quot;APIPageHandle.h&quot;
</span><ins>+#include &quot;BackgroundProcessResponsivenessTimer.h&quot;
</ins><span class="cx"> #include &quot;DataReference.h&quot;
</span><span class="cx"> #include &quot;DownloadProxyMap.h&quot;
</span><span class="cx"> #include &quot;Logging.h&quot;
</span><span class="lines">@@ -36,7 +37,6 @@
</span><span class="cx"> #include &quot;PluginProcessManager.h&quot;
</span><span class="cx"> #include &quot;TextChecker.h&quot;
</span><span class="cx"> #include &quot;TextCheckerState.h&quot;
</span><del>-#include &quot;UnresponsiveWebProcessTerminator.h&quot;
</del><span class="cx"> #include &quot;UserData.h&quot;
</span><span class="cx"> #include &quot;WebBackForwardListItem.h&quot;
</span><span class="cx"> #include &quot;WebIconDatabase.h&quot;
</span><span class="lines">@@ -103,7 +103,7 @@
</span><span class="cx">     , m_throttler(*this)
</span><span class="cx">     , m_isResponsive(NoOrMaybe::Maybe)
</span><span class="cx">     , m_visiblePageCounter([this](RefCounterEvent) { updateBackgroundResponsivenessTimer(); })
</span><del>-    , m_backgroundResponsivenessTimer(processPool.configuration().unresponsiveBackgroundProcessesTerminationEnabled() ? std::make_unique&lt;UnresponsiveWebProcessTerminator&gt;(*this) : nullptr)
</del><ins>+    , m_backgroundResponsivenessTimer(std::make_unique&lt;BackgroundProcessResponsivenessTimer&gt;(*this))
</ins><span class="cx"> {
</span><span class="cx">     WebPasteboardProxy::singleton().addWebProcessProxy(*this);
</span><span class="cx"> 
</span></span></pre></div>
<a id="trunkSourceWebKit2UIProcessWebProcessProxyh"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/UIProcess/WebProcessProxy.h (212831 => 212832)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/UIProcess/WebProcessProxy.h        2017-02-22 17:05:22 UTC (rev 212831)
+++ trunk/Source/WebKit2/UIProcess/WebProcessProxy.h        2017-02-22 17:15:45 UTC (rev 212832)
</span><span class="lines">@@ -54,8 +54,8 @@
</span><span class="cx"> 
</span><span class="cx"> namespace WebKit {
</span><span class="cx"> 
</span><ins>+class BackgroundProcessResponsivenessTimer;
</ins><span class="cx"> class NetworkProcessProxy;
</span><del>-class UnresponsiveWebProcessTerminator;
</del><span class="cx"> class WebBackForwardListItem;
</span><span class="cx"> class WebPageGroup;
</span><span class="cx"> class WebProcessPool;
</span><span class="lines">@@ -255,7 +255,7 @@
</span><span class="cx">     Vector&lt;std::function&lt;void(bool webProcessIsResponsive)&gt;&gt; m_isResponsiveCallbacks;
</span><span class="cx"> 
</span><span class="cx">     VisibleWebPageCounter m_visiblePageCounter;
</span><del>-    std::unique_ptr&lt;UnresponsiveWebProcessTerminator&gt; m_backgroundResponsivenessTimer;
</del><ins>+    std::unique_ptr&lt;BackgroundProcessResponsivenessTimer&gt; m_backgroundResponsivenessTimer;
</ins><span class="cx"> };
</span><span class="cx"> 
</span><span class="cx"> } // namespace WebKit
</span></span></pre></div>
<a id="trunkSourceWebKit2WebKit2xcodeprojprojectpbxproj"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/WebKit2.xcodeproj/project.pbxproj (212831 => 212832)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/WebKit2.xcodeproj/project.pbxproj        2017-02-22 17:05:22 UTC (rev 212831)
+++ trunk/Source/WebKit2/WebKit2.xcodeproj/project.pbxproj        2017-02-22 17:15:45 UTC (rev 212832)
</span><span class="lines">@@ -898,8 +898,8 @@
</span><span class="cx">                 41FAF5F81E3C1021001AE678 /* LibWebRTCResolver.h in Headers */ = {isa = PBXBuildFile; fileRef = 41FAF5F61E3C0B47001AE678 /* LibWebRTCResolver.h */; };
</span><span class="cx">                 41FAF5F91E3C1025001AE678 /* LibWebRTCResolver.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 41FAF5F71E3C0B47001AE678 /* LibWebRTCResolver.cpp */; };
</span><span class="cx">                 4450AEC01DC3FAE5009943F2 /* SharedMemoryCocoa.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 4450AEBF1DC3FAE5009943F2 /* SharedMemoryCocoa.cpp */; };
</span><del>-                46A2B6081E5676A600C3DEDA /* UnresponsiveWebProcessTerminator.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 46A2B6061E5675A200C3DEDA /* UnresponsiveWebProcessTerminator.cpp */; };
-                46A2B6091E5676A600C3DEDA /* UnresponsiveWebProcessTerminator.h in Headers */ = {isa = PBXBuildFile; fileRef = 46A2B6071E5675A200C3DEDA /* UnresponsiveWebProcessTerminator.h */; };
</del><ins>+                46A2B6081E5676A600C3DEDA /* BackgroundProcessResponsivenessTimer.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 46A2B6061E5675A200C3DEDA /* BackgroundProcessResponsivenessTimer.cpp */; };
+                46A2B6091E5676A600C3DEDA /* BackgroundProcessResponsivenessTimer.h in Headers */ = {isa = PBXBuildFile; fileRef = 46A2B6071E5675A200C3DEDA /* BackgroundProcessResponsivenessTimer.h */; };
</ins><span class="cx">                 4A3CC18A19B063E700D14AEF /* UserMediaPermissionRequestManagerProxy.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 4A410F3919AF7B04002EBAB5 /* UserMediaPermissionRequestManagerProxy.cpp */; };
</span><span class="cx">                 4A3CC18B19B0640F00D14AEF /* UserMediaPermissionRequestManagerProxy.h in Headers */ = {isa = PBXBuildFile; fileRef = 4A410F3A19AF7B04002EBAB5 /* UserMediaPermissionRequestManagerProxy.h */; };
</span><span class="cx">                 4A3CC18C19B0641500D14AEF /* UserMediaPermissionRequestProxy.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 4A410F3B19AF7B04002EBAB5 /* UserMediaPermissionRequestProxy.cpp */; };
</span><span class="lines">@@ -3061,8 +3061,8 @@
</span><span class="cx">                 41FAF5F61E3C0B47001AE678 /* LibWebRTCResolver.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = LibWebRTCResolver.h; path = Network/webrtc/LibWebRTCResolver.h; sourceTree = &quot;&lt;group&gt;&quot;; };
</span><span class="cx">                 41FAF5F71E3C0B47001AE678 /* LibWebRTCResolver.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = LibWebRTCResolver.cpp; path = Network/webrtc/LibWebRTCResolver.cpp; sourceTree = &quot;&lt;group&gt;&quot;; };
</span><span class="cx">                 4450AEBF1DC3FAE5009943F2 /* SharedMemoryCocoa.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = SharedMemoryCocoa.cpp; path = cocoa/SharedMemoryCocoa.cpp; sourceTree = &quot;&lt;group&gt;&quot;; };
</span><del>-                46A2B6061E5675A200C3DEDA /* UnresponsiveWebProcessTerminator.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = UnresponsiveWebProcessTerminator.cpp; sourceTree = &quot;&lt;group&gt;&quot;; };
-                46A2B6071E5675A200C3DEDA /* UnresponsiveWebProcessTerminator.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = UnresponsiveWebProcessTerminator.h; sourceTree = &quot;&lt;group&gt;&quot;; };
</del><ins>+                46A2B6061E5675A200C3DEDA /* BackgroundProcessResponsivenessTimer.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = BackgroundProcessResponsivenessTimer.cpp; sourceTree = &quot;&lt;group&gt;&quot;; };
+                46A2B6071E5675A200C3DEDA /* BackgroundProcessResponsivenessTimer.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = BackgroundProcessResponsivenessTimer.h; sourceTree = &quot;&lt;group&gt;&quot;; };
</ins><span class="cx">                 4A410F3519AF7AC3002EBAB5 /* WKUserMediaPermissionRequest.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = WKUserMediaPermissionRequest.cpp; sourceTree = &quot;&lt;group&gt;&quot;; };
</span><span class="cx">                 4A410F3619AF7AC3002EBAB5 /* WKUserMediaPermissionRequest.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = WKUserMediaPermissionRequest.h; sourceTree = &quot;&lt;group&gt;&quot;; };
</span><span class="cx">                 4A410F3919AF7B04002EBAB5 /* UserMediaPermissionRequestManagerProxy.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = UserMediaPermissionRequestManagerProxy.cpp; sourceTree = &quot;&lt;group&gt;&quot;; };
</span><span class="lines">@@ -6479,6 +6479,8 @@
</span><span class="cx">                                 1AAF089E192681AC00B6390C /* UserContent */,
</span><span class="cx">                                 1A53C2A31A325691004E8C70 /* WebsiteData */,
</span><span class="cx">                                 7CD102D91866770600ED429D /* AutoCorrectionCallback.h */,
</span><ins>+                                46A2B6061E5675A200C3DEDA /* BackgroundProcessResponsivenessTimer.cpp */,
+                                46A2B6071E5675A200C3DEDA /* BackgroundProcessResponsivenessTimer.h */,
</ins><span class="cx">                                 E1513C64166EABB200149FCB /* ChildProcessProxy.cpp */,
</span><span class="cx">                                 E1513C65166EABB200149FCB /* ChildProcessProxy.h */,
</span><span class="cx">                                 BC2652121182608100243E12 /* DrawingAreaProxy.cpp */,
</span><span class="lines">@@ -6514,8 +6516,6 @@
</span><span class="cx">                                 1AA417C912C00CCA002BE67B /* TextChecker.h */,
</span><span class="cx">                                 1BB417C912C00CCA002BE67B /* TextCheckerCompletion.cpp */,
</span><span class="cx">                                 1CC417C912C00CCA002BE67B /* TextCheckerCompletion.h */,
</span><del>-                                46A2B6061E5675A200C3DEDA /* UnresponsiveWebProcessTerminator.cpp */,
-                                46A2B6071E5675A200C3DEDA /* UnresponsiveWebProcessTerminator.h */,
</del><span class="cx">                                 07297F9C1C17BBEA003F0735 /* UserMediaPermissionCheckProxy.cpp */,
</span><span class="cx">                                 07297F9D1C17BBEA003F0735 /* UserMediaPermissionCheckProxy.h */,
</span><span class="cx">                                 4A410F3919AF7B04002EBAB5 /* UserMediaPermissionRequestManagerProxy.cpp */,
</span><span class="lines">@@ -8027,7 +8027,7 @@
</span><span class="cx">                                 4F601432155C5AA2001FBDE0 /* BlockingResponseMap.h in Headers */,
</span><span class="cx">                                 1A5705111BE410E600874AF1 /* BlockSPI.h in Headers */,
</span><span class="cx">                                 BC3065FA1259344E00E71278 /* CacheModel.h in Headers */,
</span><del>-                                46A2B6091E5676A600C3DEDA /* UnresponsiveWebProcessTerminator.h in Headers */,
</del><ins>+                                46A2B6091E5676A600C3DEDA /* BackgroundProcessResponsivenessTimer.h in Headers */,
</ins><span class="cx">                                 1AA2E51D12E4C05E00BC4966 /* CGUtilities.h in Headers */,
</span><span class="cx">                                 1A2D956F12848564001EB962 /* ChildProcess.h in Headers */,
</span><span class="cx">                                 51FAEC3A1B0657630009C4E7 /* ChildProcessMessages.h in Headers */,
</span><span class="lines">@@ -9714,7 +9714,7 @@
</span><span class="cx">                                 532159531DBAE7180054AA3C /* NetworkSession.cpp in Sources */,
</span><span class="cx">                                 5C20CB9D1BB0DCFA00895BB1 /* NetworkSessionCocoa.mm in Sources */,
</span><span class="cx">                                 31A2EC551489982E00810D71 /* NotificationPermissionRequest.cpp in Sources */,
</span><del>-                                46A2B6081E5676A600C3DEDA /* UnresponsiveWebProcessTerminator.cpp in Sources */,
</del><ins>+                                46A2B6081E5676A600C3DEDA /* BackgroundProcessResponsivenessTimer.cpp in Sources */,
</ins><span class="cx">                                 3131261E148FF82C00BA2A39 /* NotificationPermissionRequestManager.cpp in Sources */,
</span><span class="cx">                                 31A2EC501489980500810D71 /* NotificationPermissionRequestManagerProxy.cpp in Sources */,
</span><span class="cx">                                 1A2D848C127F6A49001EB962 /* NPIdentifierData.cpp in Sources */,
</span></span></pre>
</div>
</div>

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