Introduce ThreadableLoadingContext: make threaded loading code one step away from Document

third_party/WebKit/Source/core/loader/ThreadableLoaderTest.cpp

 // Copyright 2016 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 "core/loader/ThreadableLoader.h"
 
+#include <memory>
 #include "core/loader/DocumentThreadableLoader.h"
 #include "core/loader/ThreadableLoaderClient.h"
+#include "core/loader/ThreadableLoadingContext.h"
 #include "core/loader/WorkerThreadableLoader.h"
 #include "core/testing/DummyPageHolder.h"
 #include "core/workers/WorkerLoaderProxy.h"
 #include "core/workers/WorkerThreadTestHelper.h"
 #include "platform/WaitableEvent.h"
 #include "platform/geometry/IntSize.h"
 #include "platform/loader/fetch/MemoryCache.h"
 #include "platform/loader/fetch/ResourceLoaderOptions.h"
 #include "platform/network/ResourceError.h"
 #include "platform/network/ResourceRequest.h"
 #include "platform/network/ResourceResponse.h"
 #include "platform/network/ResourceTimingInfo.h"
 #include "platform/testing/URLTestHelpers.h"
 #include "platform/testing/UnitTestHelpers.h"
 #include "platform/weborigin/KURL.h"
 #include "platform/weborigin/SecurityOrigin.h"
 #include "public/platform/Platform.h"
 #include "public/platform/WebURLLoadTiming.h"
 #include "public/platform/WebURLLoaderMockFactory.h"
 #include "public/platform/WebURLResponse.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "wtf/Assertions.h"
 #include "wtf/Functional.h"
 #include "wtf/PtrUtil.h"
 #include "wtf/RefPtr.h"
-#include <memory>
 
 namespace blink {
 
 namespace {
 
 using ::testing::_;
 using ::testing::InSequence;
 using ::testing::InvokeWithoutArgs;
 using ::testing::StrEq;
 using ::testing::Truly;
@@ skipping 77 matching lines @@
  public:
   DocumentThreadableLoaderTestHelper()
       : m_dummyPageHolder(DummyPageHolder::create(IntSize(1, 1))) {}
 
   void createLoader(
       ThreadableLoaderClient* client,
       CrossOriginRequestPolicy crossOriginRequestPolicy) override {
     ThreadableLoaderOptions options;
     options.crossOriginRequestPolicy = crossOriginRequestPolicy;
     ResourceLoaderOptions resourceLoaderOptions;
-    m_loader = DocumentThreadableLoader::create(document(), client, options,
-                                                resourceLoaderOptions);
+    m_loader = DocumentThreadableLoader::create(
+        *ThreadableLoadingContext::create(document()), client, options,
+        resourceLoaderOptions);
   }
 
   void startLoader(const ResourceRequest& request) override {
     m_loader->start(request);
   }
 
   void cancelLoader() override { m_loader->cancel(); }
   void cancelAndClearLoader() override {
     m_loader->cancel();
     m_loader = nullptr;
@@ skipping 89 matching lines @@
     completionEvent->wait();
   }
 
   void onSetUp() override {
     m_mockWorkerReportingProxy = WTF::makeUnique<MockWorkerReportingProxy>();
     m_securityOrigin = document().getSecurityOrigin();
     m_parentFrameTaskRunners =
         ParentFrameTaskRunners::create(&m_dummyPageHolder->frame());
     m_workerThread = WTF::wrapUnique(
         new WorkerThreadForTest(this, *m_mockWorkerReportingProxy));
+    m_loadingContext = ThreadableLoadingContext::create(document());
 
     expectWorkerLifetimeReportingCalls();
     m_workerThread->startWithSourceCode(m_securityOrigin.get(),
                                         "//fake source code",
                                         m_parentFrameTaskRunners.get());
     m_workerThread->waitForInit();
   }
 
   void onServeRequests() override { testing::runPendingTasks(); }
 
@@ skipping 80 matching lines @@
         ->postTask(BLINK_FROM_HERE, std::move(task));
   }
 
   void postTaskToWorkerGlobalScope(
       const WebTraceLocation& location,
       std::unique_ptr<WTF::CrossThreadClosure> task) override {
     DCHECK(m_workerThread);
     m_workerThread->postTask(location, std::move(task));
   }
 
-  ExecutionContext* getLoaderExecutionContext() override { return &document(); }
+  ThreadableLoadingContext* getThreadableLoadingContext() override {
+    return m_loadingContext.get();
+  }
 
   RefPtr<SecurityOrigin> m_securityOrigin;
   std::unique_ptr<MockWorkerReportingProxy> m_mockWorkerReportingProxy;
   std::unique_ptr<WorkerThreadForTest> m_workerThread;
 
   std::unique_ptr<DummyPageHolder> m_dummyPageHolder;
   // Accessed cross-thread when worker thread posts tasks to the parent.
   CrossThreadPersistent<ParentFrameTaskRunners> m_parentFrameTaskRunners;
   Checkpoint m_checkpoint;
   // |m_loader| must be touched only from the worker thread only.
   CrossThreadPersistent<ThreadableLoader> m_loader;
+
+  Persistent<ThreadableLoadingContext> m_loadingContext;
 };
 
 class ThreadableLoaderTest
     : public ::testing::TestWithParam<ThreadableLoaderToTest> {
  public:
   ThreadableLoaderTest() {
     switch (GetParam()) {
       case DocumentThreadableLoaderTest:
         m_helper = WTF::wrapUnique(new DocumentThreadableLoaderTestHelper);
         break;
@@ skipping 517 matching lines @@
   // test is not saying that didFailAccessControlCheck should be dispatched
   // synchronously, but is saying that even when a response is served
   // synchronously it should not lead to a crash.
   startLoader(KURL(KURL(), "about:blank"));
   callCheckpoint(2);
 }
 
 }  // namespace
 
 }  // namespace blink