Use per-frame TaskRunner instead of thread's default in DataConsumerHandle

third_party/WebKit/Source/modules/fetch/FetchManager.cpp

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "modules/fetch/FetchManager.h"
 
 #include "bindings/core/v8/ExceptionState.h"
 #include "bindings/core/v8/ScriptPromiseResolver.h"
 #include "bindings/core/v8/ScriptState.h"
 #include "bindings/core/v8/V8ThrowException.h"
 #include "core/dom/DOMArrayBuffer.h"
 #include "core/dom/Document.h"
+#include "core/dom/TaskRunnerHelper.h"
 #include "core/fetch/FetchUtils.h"
 #include "core/fileapi/Blob.h"
 #include "core/frame/Frame.h"
 #include "core/frame/SubresourceIntegrity.h"
 #include "core/frame/csp/ContentSecurityPolicy.h"
 #include "core/inspector/ConsoleMessage.h"
 #include "core/inspector/InspectorInstrumentation.h"
 #include "core/loader/ThreadableLoader.h"
 #include "core/loader/ThreadableLoaderClient.h"
 #include "core/page/ChromeClient.h"
@@ skipping 102 matching lines @@
                     // explicitly finish the loader here.
                     if (m_loader->m_didFinishLoading)
                         m_loader->loadSucceeded();
                     return;
                 }
             }
             m_updater->update(createUnexpectedErrorDataConsumerHandle());
             m_loader->performNetworkError(errorMessage);
         }
 
+        WebTaskRunner* getTaskRunner() override
+        {
+            return TaskRunnerHelper::getUnthrottledTaskRunner(m_loader->m_executionContext);
+        }
+
         bool isFinished() const { return m_finished; }
 
         DEFINE_INLINE_TRACE()
         {
             visitor->trace(m_updater);
             visitor->trace(m_response);
             visitor->trace(m_loader);
         }
     private:
         std::unique_ptr<WebDataConsumerHandle> m_handle;
@@ skipping 596 matching lines @@
     loader->dispose();
 }
 
 DEFINE_TRACE(FetchManager)
 {
     visitor->trace(m_loaders);
     ContextLifecycleObserver::trace(visitor);
 }
 
 } // namespace blink