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<div id="msg">
<dl class="meta">
<dt>Revision</dt> <dd><a href="http://trac.webkit.org/projects/webkit/changeset/211869">211869</a></dd>
<dt>Author</dt> <dd>antti@apple.com</dd>
<dt>Date</dt> <dd>2017-02-08 07:10:07 -0800 (Wed, 08 Feb 2017)</dd>
</dl>

<h3>Log Message</h3>
<pre>Allow speculative redirects
https://bugs.webkit.org/show_bug.cgi?id=167982

Reviewed by Andreas Kling.

If speculative loader hits a redirect it will drop it on the floor. We should use it.

* NetworkProcess/NetworkResourceLoader.cpp:
(WebKit::NetworkResourceLoader::continueWillSendRequest):
(WebKit::NetworkResourceLoader::dispatchWillSendRequestForCacheEntry):

    Reset the m_isWaitingContinueWillSendRequestForCachedRedirect bit immediately.

* NetworkProcess/cache/NetworkCache.cpp:
(WebKit::NetworkCache::Cache::makeRedirectEntry):

    Factor to a function.

(WebKit::NetworkCache::Cache::storeRedirect):
* NetworkProcess/cache/NetworkCache.h:
(WebKit::NetworkCache::Cache::speculativeLoadManager):
* NetworkProcess/cache/NetworkCacheEntry.cpp:
(WebKit::NetworkCache::Entry::Entry):

    Use std::optional instead std::unique_ptr for the redirect request.

(WebKit::NetworkCache::Entry::decodeStorageRecord):
* NetworkProcess/cache/NetworkCacheEntry.h:
(WebKit::NetworkCache::Entry::redirectRequest):
* NetworkProcess/cache/NetworkCacheSpeculativeLoad.cpp:
(WebKit::NetworkCache::SpeculativeLoad::willSendRedirectedRequest):

    Make cache entry for speculative redirect.
    The redirect is not actually performed, the target resource will have separate
    a speculative entry.

(WebKit::NetworkCache::SpeculativeLoad::didFinishLoading):
(WebKit::NetworkCache::SpeculativeLoad::didFailLoading):
(WebKit::NetworkCache::SpeculativeLoad::didComplete):

    Protect against multiple completions.

(WebKit::NetworkCache::SpeculativeLoad::abort): Deleted.
* NetworkProcess/cache/NetworkCacheSpeculativeLoad.h:
* NetworkProcess/cache/NetworkCacheSpeculativeLoadManager.cpp:
(WebKit::NetworkCache::SpeculativeLoadManager::retrieve):

    Make successful retrieves asynchronous to avoid re-entrancy problems.</pre>

<h3>Modified Paths</h3>
<ul>
<li><a href="#trunkSourceWebKit2ChangeLog">trunk/Source/WebKit2/ChangeLog</a></li>
<li><a href="#trunkSourceWebKit2NetworkProcessNetworkResourceLoadercpp">trunk/Source/WebKit2/NetworkProcess/NetworkResourceLoader.cpp</a></li>
<li><a href="#trunkSourceWebKit2NetworkProcesscacheNetworkCachecpp">trunk/Source/WebKit2/NetworkProcess/cache/NetworkCache.cpp</a></li>
<li><a href="#trunkSourceWebKit2NetworkProcesscacheNetworkCacheh">trunk/Source/WebKit2/NetworkProcess/cache/NetworkCache.h</a></li>
<li><a href="#trunkSourceWebKit2NetworkProcesscacheNetworkCacheEntrycpp">trunk/Source/WebKit2/NetworkProcess/cache/NetworkCacheEntry.cpp</a></li>
<li><a href="#trunkSourceWebKit2NetworkProcesscacheNetworkCacheEntryh">trunk/Source/WebKit2/NetworkProcess/cache/NetworkCacheEntry.h</a></li>
<li><a href="#trunkSourceWebKit2NetworkProcesscacheNetworkCacheSpeculativeLoadcpp">trunk/Source/WebKit2/NetworkProcess/cache/NetworkCacheSpeculativeLoad.cpp</a></li>
<li><a href="#trunkSourceWebKit2NetworkProcesscacheNetworkCacheSpeculativeLoadh">trunk/Source/WebKit2/NetworkProcess/cache/NetworkCacheSpeculativeLoad.h</a></li>
<li><a href="#trunkSourceWebKit2NetworkProcesscacheNetworkCacheSpeculativeLoadManagercpp">trunk/Source/WebKit2/NetworkProcess/cache/NetworkCacheSpeculativeLoadManager.cpp</a></li>
</ul>

</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunkSourceWebKit2ChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/ChangeLog (211868 => 211869)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/ChangeLog        2017-02-08 12:39:24 UTC (rev 211868)
+++ trunk/Source/WebKit2/ChangeLog        2017-02-08 15:10:07 UTC (rev 211869)
</span><span class="lines">@@ -1,3 +1,54 @@
</span><ins>+2017-02-08  Antti Koivisto  &lt;antti@apple.com&gt;
+
+        Allow speculative redirects
+        https://bugs.webkit.org/show_bug.cgi?id=167982
+
+        Reviewed by Andreas Kling.
+
+        If speculative loader hits a redirect it will drop it on the floor. We should use it.
+
+        * NetworkProcess/NetworkResourceLoader.cpp:
+        (WebKit::NetworkResourceLoader::continueWillSendRequest):
+        (WebKit::NetworkResourceLoader::dispatchWillSendRequestForCacheEntry):
+
+            Reset the m_isWaitingContinueWillSendRequestForCachedRedirect bit immediately.
+
+        * NetworkProcess/cache/NetworkCache.cpp:
+        (WebKit::NetworkCache::Cache::makeRedirectEntry):
+
+            Factor to a function.
+
+        (WebKit::NetworkCache::Cache::storeRedirect):
+        * NetworkProcess/cache/NetworkCache.h:
+        (WebKit::NetworkCache::Cache::speculativeLoadManager):
+        * NetworkProcess/cache/NetworkCacheEntry.cpp:
+        (WebKit::NetworkCache::Entry::Entry):
+
+            Use std::optional instead std::unique_ptr for the redirect request.
+
+        (WebKit::NetworkCache::Entry::decodeStorageRecord):
+        * NetworkProcess/cache/NetworkCacheEntry.h:
+        (WebKit::NetworkCache::Entry::redirectRequest):
+        * NetworkProcess/cache/NetworkCacheSpeculativeLoad.cpp:
+        (WebKit::NetworkCache::SpeculativeLoad::willSendRedirectedRequest):
+
+            Make cache entry for speculative redirect.
+            The redirect is not actually performed, the target resource will have separate
+            a speculative entry.
+
+        (WebKit::NetworkCache::SpeculativeLoad::didFinishLoading):
+        (WebKit::NetworkCache::SpeculativeLoad::didFailLoading):
+        (WebKit::NetworkCache::SpeculativeLoad::didComplete):
+
+            Protect against multiple completions.
+
+        (WebKit::NetworkCache::SpeculativeLoad::abort): Deleted.
+        * NetworkProcess/cache/NetworkCacheSpeculativeLoad.h:
+        * NetworkProcess/cache/NetworkCacheSpeculativeLoadManager.cpp:
+        (WebKit::NetworkCache::SpeculativeLoadManager::retrieve):
+
+            Make successful retrieves asynchronous to avoid re-entrancy problems.
+
</ins><span class="cx"> 2017-02-07  Brent Fulgham  &lt;bfulgham@apple.com&gt;
</span><span class="cx"> 
</span><span class="cx">         Correct initialization of Resource Load Statistics for use in WebKitTestRunner
</span></span></pre></div>
<a id="trunkSourceWebKit2NetworkProcessNetworkResourceLoadercpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/NetworkProcess/NetworkResourceLoader.cpp (211868 => 211869)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/NetworkProcess/NetworkResourceLoader.cpp        2017-02-08 12:39:24 UTC (rev 211868)
+++ trunk/Source/WebKit2/NetworkProcess/NetworkResourceLoader.cpp        2017-02-08 15:10:07 UTC (rev 211869)
</span><span class="lines">@@ -476,6 +476,8 @@
</span><span class="cx"> 
</span><span class="cx"> #if ENABLE(NETWORK_CACHE)
</span><span class="cx">     if (m_isWaitingContinueWillSendRequestForCachedRedirect) {
</span><ins>+        m_isWaitingContinueWillSendRequestForCachedRedirect = false;
+
</ins><span class="cx">         LOG(NetworkCache, &quot;(NetworkProcess) Retrieving cached redirect&quot;);
</span><span class="cx"> 
</span><span class="cx">         if (canUseCachedRedirect(newRequest))
</span><span class="lines">@@ -483,7 +485,6 @@
</span><span class="cx">         else
</span><span class="cx">             startNetworkLoad(newRequest);
</span><span class="cx"> 
</span><del>-        m_isWaitingContinueWillSendRequestForCachedRedirect = false;
</del><span class="cx">         return;
</span><span class="cx">     }
</span><span class="cx"> #endif
</span><span class="lines">@@ -643,6 +644,8 @@
</span><span class="cx"> void NetworkResourceLoader::dispatchWillSendRequestForCacheEntry(std::unique_ptr&lt;NetworkCache::Entry&gt; entry)
</span><span class="cx"> {
</span><span class="cx">     ASSERT(entry-&gt;redirectRequest());
</span><ins>+    ASSERT(!m_isWaitingContinueWillSendRequestForCachedRedirect);
+
</ins><span class="cx">     LOG(NetworkCache, &quot;(NetworkProcess) Executing cached redirect&quot;);
</span><span class="cx"> 
</span><span class="cx">     ++m_redirectCount;
</span></span></pre></div>
<a id="trunkSourceWebKit2NetworkProcesscacheNetworkCachecpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/NetworkProcess/cache/NetworkCache.cpp (211868 => 211869)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/NetworkProcess/cache/NetworkCache.cpp        2017-02-08 12:39:24 UTC (rev 211868)
+++ trunk/Source/WebKit2/NetworkProcess/cache/NetworkCache.cpp        2017-02-08 15:10:07 UTC (rev 211869)
</span><span class="lines">@@ -395,6 +395,11 @@
</span><span class="cx">     return std::make_unique&lt;Entry&gt;(makeCacheKey(request), response, WTFMove(responseData), WebCore::collectVaryingRequestHeaders(request, response));
</span><span class="cx"> }
</span><span class="cx"> 
</span><ins>+std::unique_ptr&lt;Entry&gt; Cache::makeRedirectEntry(const WebCore::ResourceRequest&amp; request, const WebCore::ResourceResponse&amp; response, const WebCore::ResourceRequest&amp; redirectRequest)
+{
+    return std::make_unique&lt;Entry&gt;(makeCacheKey(request), response, redirectRequest, WebCore::collectVaryingRequestHeaders(request, response));
+}
+
</ins><span class="cx"> std::unique_ptr&lt;Entry&gt; Cache::store(const WebCore::ResourceRequest&amp; request, const WebCore::ResourceResponse&amp; response, RefPtr&lt;WebCore::SharedBuffer&gt;&amp;&amp; responseData, Function&lt;void (MappedBody&amp;)&gt;&amp;&amp; completionHandler)
</span><span class="cx"> {
</span><span class="cx">     ASSERT(isEnabled());
</span><span class="lines">@@ -454,8 +459,7 @@
</span><span class="cx">         return nullptr;
</span><span class="cx">     }
</span><span class="cx"> 
</span><del>-    std::unique_ptr&lt;Entry&gt; cacheEntry = std::make_unique&lt;Entry&gt;(makeCacheKey(request), response, redirectRequest, WebCore::collectVaryingRequestHeaders(request, response));
-
</del><ins>+    auto cacheEntry = makeRedirectEntry(request, response, redirectRequest);
</ins><span class="cx">     auto record = cacheEntry-&gt;encodeAsStorageRecord();
</span><span class="cx"> 
</span><span class="cx">     m_storage-&gt;store(record, nullptr);
</span></span></pre></div>
<a id="trunkSourceWebKit2NetworkProcesscacheNetworkCacheh"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/NetworkProcess/cache/NetworkCache.h (211868 => 211869)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/NetworkProcess/cache/NetworkCache.h        2017-02-08 12:39:24 UTC (rev 211868)
+++ trunk/Source/WebKit2/NetworkProcess/cache/NetworkCache.h        2017-02-08 15:10:07 UTC (rev 211869)
</span><span class="lines">@@ -125,11 +125,16 @@
</span><span class="cx">     void storeData(const DataKey&amp;,  const uint8_t* data, size_t);
</span><span class="cx">     
</span><span class="cx">     std::unique_ptr&lt;Entry&gt; makeEntry(const WebCore::ResourceRequest&amp;, const WebCore::ResourceResponse&amp;, RefPtr&lt;WebCore::SharedBuffer&gt;&amp;&amp;);
</span><ins>+    std::unique_ptr&lt;Entry&gt; makeRedirectEntry(const WebCore::ResourceRequest&amp;, const WebCore::ResourceResponse&amp;, const WebCore::ResourceRequest&amp; redirectRequest);
</ins><span class="cx"> 
</span><span class="cx">     void dumpContentsToFile();
</span><span class="cx"> 
</span><span class="cx">     String recordsPath() const;
</span><span class="cx"> 
</span><ins>+#if ENABLE(NETWORK_CACHE_SPECULATIVE_REVALIDATION)
+    SpeculativeLoadManager* speculativeLoadManager() { return m_speculativeLoadManager.get(); }
+#endif
+
</ins><span class="cx"> private:
</span><span class="cx">     Cache() = default;
</span><span class="cx">     ~Cache() = delete;
</span></span></pre></div>
<a id="trunkSourceWebKit2NetworkProcesscacheNetworkCacheEntrycpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/NetworkProcess/cache/NetworkCacheEntry.cpp (211868 => 211869)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/NetworkProcess/cache/NetworkCacheEntry.cpp        2017-02-08 12:39:24 UTC (rev 211868)
+++ trunk/Source/WebKit2/NetworkProcess/cache/NetworkCacheEntry.cpp        2017-02-08 15:10:07 UTC (rev 211869)
</span><span class="lines">@@ -52,12 +52,10 @@
</span><span class="cx">     , m_timeStamp(std::chrono::system_clock::now())
</span><span class="cx">     , m_response(response)
</span><span class="cx">     , m_varyingRequestHeaders(varyingRequestHeaders)
</span><ins>+    , m_redirectRequest(redirectRequest)
</ins><span class="cx"> {
</span><span class="cx">     ASSERT(m_key.type() == &quot;Resource&quot;);
</span><span class="cx">     // Redirect body is not needed even if exists.
</span><del>-
-    m_redirectRequest = std::make_unique&lt;WebCore::ResourceRequest&gt;();
-    m_redirectRequest-&gt;setAsIsolatedCopy(redirectRequest);
</del><span class="cx">     m_redirectRequest-&gt;setHTTPBody(nullptr);
</span><span class="cx"> }
</span><span class="cx"> 
</span><span class="lines">@@ -66,6 +64,7 @@
</span><span class="cx">     , m_timeStamp(other.m_timeStamp)
</span><span class="cx">     , m_response(other.m_response)
</span><span class="cx">     , m_varyingRequestHeaders(other.m_varyingRequestHeaders)
</span><ins>+    , m_redirectRequest(other.m_redirectRequest)
</ins><span class="cx">     , m_buffer(other.m_buffer)
</span><span class="cx">     , m_sourceStorageRecord(other.m_sourceStorageRecord)
</span><span class="cx"> {
</span><span class="lines">@@ -129,7 +128,7 @@
</span><span class="cx">         return nullptr;
</span><span class="cx"> 
</span><span class="cx">     if (isRedirect) {
</span><del>-        entry-&gt;m_redirectRequest = std::make_unique&lt;WebCore::ResourceRequest&gt;();
</del><ins>+        entry-&gt;m_redirectRequest.emplace();
</ins><span class="cx">         if (!entry-&gt;m_redirectRequest-&gt;decodeWithoutPlatformData(decoder))
</span><span class="cx">             return nullptr;
</span><span class="cx">     }
</span></span></pre></div>
<a id="trunkSourceWebKit2NetworkProcesscacheNetworkCacheEntryh"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/NetworkProcess/cache/NetworkCacheEntry.h (211868 => 211869)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/NetworkProcess/cache/NetworkCacheEntry.h        2017-02-08 12:39:24 UTC (rev 211868)
+++ trunk/Source/WebKit2/NetworkProcess/cache/NetworkCacheEntry.h        2017-02-08 15:10:07 UTC (rev 211869)
</span><span class="lines">@@ -59,7 +59,7 @@
</span><span class="cx">     const Vector&lt;std::pair&lt;String, String&gt;&gt;&amp; varyingRequestHeaders() const { return m_varyingRequestHeaders; }
</span><span class="cx"> 
</span><span class="cx">     WebCore::SharedBuffer* buffer() const;
</span><del>-    const WebCore::ResourceRequest* redirectRequest() const { return m_redirectRequest.get(); }
</del><ins>+    const std::optional&lt;WebCore::ResourceRequest&gt;&amp; redirectRequest() const { return m_redirectRequest; }
</ins><span class="cx"> 
</span><span class="cx"> #if ENABLE(SHAREABLE_RESOURCE)
</span><span class="cx">     ShareableResource::Handle&amp; shareableResourceHandle() const;
</span><span class="lines">@@ -83,7 +83,7 @@
</span><span class="cx">     WebCore::ResourceResponse m_response;
</span><span class="cx">     Vector&lt;std::pair&lt;String, String&gt;&gt; m_varyingRequestHeaders;
</span><span class="cx"> 
</span><del>-    std::unique_ptr&lt;WebCore::ResourceRequest&gt; m_redirectRequest;
</del><ins>+    std::optional&lt;WebCore::ResourceRequest&gt; m_redirectRequest;
</ins><span class="cx">     mutable RefPtr&lt;WebCore::SharedBuffer&gt; m_buffer;
</span><span class="cx"> #if ENABLE(SHAREABLE_RESOURCE)
</span><span class="cx">     mutable ShareableResource::Handle m_shareableResourceHandle;
</span></span></pre></div>
<a id="trunkSourceWebKit2NetworkProcesscacheNetworkCacheSpeculativeLoadcpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/NetworkProcess/cache/NetworkCacheSpeculativeLoad.cpp (211868 => 211869)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/NetworkProcess/cache/NetworkCacheSpeculativeLoad.cpp        2017-02-08 12:39:24 UTC (rev 211868)
+++ trunk/Source/WebKit2/NetworkProcess/cache/NetworkCacheSpeculativeLoad.cpp        2017-02-08 15:10:07 UTC (rev 211869)
</span><span class="lines">@@ -67,11 +67,23 @@
</span><span class="cx">     ASSERT(!m_networkLoad);
</span><span class="cx"> }
</span><span class="cx"> 
</span><del>-void SpeculativeLoad::willSendRedirectedRequest(ResourceRequest&amp;&amp;, ResourceRequest&amp;&amp; redirectRequest, ResourceResponse&amp;&amp; redirectResponse)
</del><ins>+void SpeculativeLoad::willSendRedirectedRequest(ResourceRequest&amp;&amp; request, ResourceRequest&amp;&amp; redirectRequest, ResourceResponse&amp;&amp; redirectResponse)
</ins><span class="cx"> {
</span><del>-    LOG(NetworkCacheSpeculativePreloading, &quot;(NetworkProcess) Speculative revalidation for %s hit a redirect, aborting the load.&quot;, redirectResponse.url().string().utf8().data());
-    // We drop speculative revalidations if they redirect for now as we would need to notify WebCore of such redirects.
-    abort();
</del><ins>+    LOG(NetworkCacheSpeculativePreloading, &quot;Speculative redirect %s -&gt; %s&quot;, request.url().string().utf8().data(), redirectRequest.url().string().utf8().data());
+
+    m_cacheEntry = NetworkCache::singleton().storeRedirect(request, redirectResponse, redirectRequest);
+    // Create a synthetic cache entry if we can't store.
+    if (!m_cacheEntry)
+        m_cacheEntry = NetworkCache::singleton().makeRedirectEntry(request, redirectResponse, redirectRequest);
+
+    auto load = WTFMove(m_networkLoad);
+
+    // Don't follow the redirect. The redirect target will be registered for speculative load when it is loaded.
+    didComplete();
+
+    // This causes call to didFailLoading().
+    if (load)
+        load-&gt;continueWillSendRequest({ });
</ins><span class="cx"> }
</span><span class="cx"> 
</span><span class="cx"> auto SpeculativeLoad::didReceiveResponse(ResourceResponse&amp;&amp; receivedResponse) -&gt; ShouldContinueDidReceiveResponse
</span><span class="lines">@@ -106,8 +118,10 @@
</span><span class="cx"> 
</span><span class="cx"> void SpeculativeLoad::didFinishLoading(double finishTime)
</span><span class="cx"> {
</span><ins>+    if (m_didComplete)
+        return;
</ins><span class="cx">     if (!m_cacheEntry &amp;&amp; m_bufferedDataForCache) {
</span><del>-        m_cacheEntry = NetworkCache::singleton().store(m_originalRequest, m_response, WTFMove(m_bufferedDataForCache), [](auto&amp; mappedBody) { });
</del><ins>+        m_cacheEntry = NetworkCache::singleton().store(m_originalRequest, m_response, m_bufferedDataForCache.copyRef(), [](auto&amp; mappedBody) { });
</ins><span class="cx">         // Create a synthetic cache entry if we can't store.
</span><span class="cx">         if (!m_cacheEntry &amp;&amp; m_response.httpStatusCode() == 200)
</span><span class="cx">             m_cacheEntry = NetworkCache::singleton().makeEntry(m_originalRequest, m_response, WTFMove(m_bufferedDataForCache));
</span><span class="lines">@@ -125,24 +139,20 @@
</span><span class="cx"> 
</span><span class="cx"> void SpeculativeLoad::didFailLoading(const ResourceError&amp;)
</span><span class="cx"> {
</span><ins>+    if (m_didComplete)
+        return;
</ins><span class="cx">     m_cacheEntry = nullptr;
</span><span class="cx"> 
</span><span class="cx">     didComplete();
</span><span class="cx"> }
</span><span class="cx"> 
</span><del>-void SpeculativeLoad::abort()
-{
-    if (m_networkLoad)
-        m_networkLoad-&gt;cancel();
-
-    m_cacheEntry = nullptr;
-    didComplete();
-}
-
</del><span class="cx"> void SpeculativeLoad::didComplete()
</span><span class="cx"> {
</span><span class="cx">     RELEASE_ASSERT(RunLoop::isMain());
</span><span class="cx"> 
</span><ins>+    if (m_didComplete)
+        return;
+    m_didComplete = true;
</ins><span class="cx">     m_networkLoad = nullptr;
</span><span class="cx"> 
</span><span class="cx">     // Make sure speculatively revalidated resources do not get validated by the NetworkResourceLoader again.
</span></span></pre></div>
<a id="trunkSourceWebKit2NetworkProcesscacheNetworkCacheSpeculativeLoadh"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/NetworkProcess/cache/NetworkCacheSpeculativeLoad.h (211868 => 211869)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/NetworkProcess/cache/NetworkCacheSpeculativeLoad.h        2017-02-08 12:39:24 UTC (rev 211868)
+++ trunk/Source/WebKit2/NetworkProcess/cache/NetworkCacheSpeculativeLoad.h        2017-02-08 15:10:07 UTC (rev 211869)
</span><span class="lines">@@ -64,7 +64,6 @@
</span><span class="cx">     void didFinishLoading(double finishTime) override;
</span><span class="cx">     void didFailLoading(const WebCore::ResourceError&amp;) override;
</span><span class="cx"> 
</span><del>-    void abort();
</del><span class="cx">     void didComplete();
</span><span class="cx"> 
</span><span class="cx">     GlobalFrameID m_frameID;
</span><span class="lines">@@ -77,6 +76,7 @@
</span><span class="cx"> 
</span><span class="cx">     RefPtr&lt;WebCore::SharedBuffer&gt; m_bufferedDataForCache;
</span><span class="cx">     std::unique_ptr&lt;NetworkCache::Entry&gt; m_cacheEntry;
</span><ins>+    bool m_didComplete { false };
</ins><span class="cx"> };
</span><span class="cx"> 
</span><span class="cx"> } // namespace NetworkCache
</span></span></pre></div>
<a id="trunkSourceWebKit2NetworkProcesscacheNetworkCacheSpeculativeLoadManagercpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebKit2/NetworkProcess/cache/NetworkCacheSpeculativeLoadManager.cpp (211868 => 211869)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebKit2/NetworkProcess/cache/NetworkCacheSpeculativeLoadManager.cpp        2017-02-08 12:39:24 UTC (rev 211868)
+++ trunk/Source/WebKit2/NetworkProcess/cache/NetworkCacheSpeculativeLoadManager.cpp        2017-02-08 15:10:07 UTC (rev 211869)
</span><span class="lines">@@ -345,7 +345,9 @@
</span><span class="cx"> void SpeculativeLoadManager::retrieve(const Key&amp; storageKey, RetrieveCompletionHandler&amp;&amp; completionHandler)
</span><span class="cx"> {
</span><span class="cx">     if (auto preloadedEntry = m_preloadedEntries.take(storageKey)) {
</span><del>-        completionHandler(preloadedEntry-&gt;takeCacheEntry());
</del><ins>+        RunLoop::main().dispatch([completionHandler = WTFMove(completionHandler), cacheEntry = preloadedEntry-&gt;takeCacheEntry()] () mutable {
+            completionHandler(WTFMove(cacheEntry));
+        });
</ins><span class="cx">         return;
</span><span class="cx">     }
</span><span class="cx">     ASSERT(m_pendingPreloads.contains(storageKey));
</span></span></pre>
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