Get rid of the following dependencies from content:

content/renderer/content_renderer_client.h

 // Copyright (c) 2011 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_RENDERER_CONTENT_RENDERER_CLIENT_H_
 #define CONTENT_RENDERER_CONTENT_RENDERER_CLIENT_H_
 #pragma once
 
 #include <string>
 
@@ skipping 65 matching lines @@
                           const GURL& url,
                           bool is_content_initiated,
                           bool* send_referrer);
 
   // Notifies the embedder that the given frame is requesting the resource at
   // |url|.  If the function returns true, the url is changed to |new_url|.
   virtual bool WillSendRequest(WebKit::WebFrame* frame,
                                const GURL& url,
                                GURL* new_url);
 
-  // Returns the file path where the media library files are.
-  virtual FilePath GetMediaLibraryPath();
-
   // Whether to pump events when sending sync cookie messages.  Needed if the
   // embedder can potentiall put up a modal dialog on the UI thread as a result.
   virtual bool ShouldPumpEventsDuringCookieMessage();
 
   // See the corresponding functions in WebKit::WebFrameClient.
   virtual void DidCreateScriptContext(WebKit::WebFrame* frame);
   virtual void DidDestroyScriptContext(WebKit::WebFrame* frame);
   virtual void DidCreateIsolatedScriptContext(WebKit::WebFrame* frame);
 
   // See WebKit::WebKitClient.
   virtual unsigned long long VisitedLinkHash(const char* canonical_url,
                                              size_t length);
   virtual bool IsLinkVisited(unsigned long long link_hash);
   virtual void PrefetchHostName(const char* hostname, size_t length);
   virtual bool ShouldOverridePageVisibilityState(
       const RenderView* render_view,
       WebKit::WebPageVisibilityState* override_state) const;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_CONTENT_RENDERER_CLIENT_H_