Move the MediaObserver getter from ResourceContext to ContentBrowserClient, since we only need to s…

content/test/mock_resource_context.h

Index: content/test/mock_resource_context.h
===================================================================
--- content/test/mock_resource_context.h	(revision 128803)
+++ content/test/mock_resource_context.h	(working copy)
@@ -23,18 +23,12 @@
     test_request_context_ = context;
   }
 
-  void set_media_observer(MediaObserver* observer) {
-    media_observer_ = observer;
-  }
-
   // ResourceContext implementation:
   virtual net::HostResolver* GetHostResolver() OVERRIDE;
   virtual net::URLRequestContext* GetRequestContext() OVERRIDE;
-  virtual MediaObserver* GetMediaObserver() OVERRIDE;
 
  private:
   scoped_refptr<net::URLRequestContext> test_request_context_;
-  MediaObserver* media_observer_;
 
   DISALLOW_COPY_AND_ASSIGN(MockResourceContext);
 };