web-threads: Create a single instance of WebThread for each blink thread.

content/test/test_blink_web_unit_test_support.h

 // Copyright 2013 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.
 
 #ifndef CONTENT_TEST_TEST_BLINK_WEB_UNIT_TEST_SUPPORT_H_
 #define CONTENT_TEST_TEST_BLINK_WEB_UNIT_TEST_SUPPORT_H_
 
 #include "base/compiler_specific.h"
 #include "base/files/scoped_temp_dir.h"
 #include "cc/blink/web_compositor_support_impl.h"
@@ skipping 68 matching lines @@
                                       const blink::WebURLError& error);
   virtual void unregisterMockedURL(const blink::WebURL& url);
   virtual void unregisterAllMockedURLs();
   virtual void serveAsynchronousMockedRequests();
   virtual blink::WebString webKitRootDir();
   virtual blink::WebLayerTreeView* createLayerTreeViewForTesting();
   virtual blink::WebData readFromFile(const blink::WebString& path);
   virtual bool getBlobItems(const blink::WebString& uuid,
                             blink::WebVector<blink::WebBlobData::Item*>* items);
   virtual blink::WebScheduler* scheduler();
+  virtual blink::WebThread* currentThread();
 
  private:
   MockWebBlobRegistryImpl blob_registry_;
   SimpleWebMimeRegistryImpl mime_registry_;
   scoped_ptr<MockWebClipboardImpl> mock_clipboard_;
   WebFileUtilitiesImpl file_utilities_;
   base::ScopedTempDir file_system_root_;
   scoped_ptr<WebURLLoaderMockFactory> url_loader_factory_;
   cc_blink::WebCompositorSupportImpl compositor_support_;
   scoped_ptr<RendererScheduler> renderer_scheduler_;
   scoped_ptr<WebSchedulerImpl> web_scheduler_;
+  scoped_ptr<blink::WebThread> web_thread_;
 
 #if defined(OS_WIN) || defined(OS_MACOSX)
   blink::WebThemeEngine* active_theme_engine_;
 #endif
   DISALLOW_COPY_AND_ASSIGN(TestBlinkWebUnitTestSupport);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_TEST_TEST_BLINK_WEB_UNIT_TEST_SUPPORT_H_