Implement blink::Platform::yieldCurrentThread()

mojo/services/html_viewer/blink_platform_impl.h

 // 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.
 
 #ifndef MOJO_SERVICES_HTML_VIEWER_BLINK_PLATFORM_IMPL_H_
 #define MOJO_SERVICES_HTML_VIEWER_BLINK_PLATFORM_IMPL_H_
 
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop/message_loop.h"
 #include "base/threading/thread_local_storage.h"
@@ skipping 33 matching lines @@
   virtual blink::WebCompositorSupport* compositorSupport();
   virtual blink::WebURLLoader* createURLLoader();
   virtual blink::WebSocketHandle* createWebSocketHandle();
   virtual blink::WebString userAgent();
   virtual blink::WebData parseDataURL(
       const blink::WebURL& url, blink::WebString& mime_type,
       blink::WebString& charset);
   virtual blink::WebURLError cancelledError(const blink::WebURL& url) const;
   virtual blink::WebThread* createThread(const char* name);
   virtual blink::WebThread* currentThread();
+  virtual void yieldCurrentThread();
   virtual blink::WebWaitableEvent* createWaitableEvent();
   virtual blink::WebWaitableEvent* waitMultipleEvents(
       const blink::WebVector<blink::WebWaitableEvent*>& events);
   virtual blink::WebScrollbarBehavior* scrollbarBehavior();
   virtual const unsigned char* getTraceCategoryEnabledFlag(
       const char* category_name);
 
  private:
   void SuspendSharedTimer();
   void ResumeSharedTimer();
@@ skipping 19 matching lines @@
   scoped_ptr<WebClipboardImpl> clipboard_;
   WebMimeRegistryImpl mime_registry_;
   blink::WebScrollbarBehavior scrollbar_behavior_;
 
   DISALLOW_COPY_AND_ASSIGN(BlinkPlatformImpl);
 };
 
 }  // namespace mojo
 
 #endif  // MOJO_SERVICES_HTML_VIEWER_BLINK_PLATFORM_IMPL_H_