DevTools: remove usage and quota getter from the protocol handler.

content/browser/devtools/protocol/page_handler.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 CONTENT_BROWSER_DEVTOOLS_PROTOCOL_PAGE_HANDLER_H_
 #define CONTENT_BROWSER_DEVTOOLS_PROTOCOL_PAGE_HANDLER_H_
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/memory/weak_ptr.h"
@@ skipping 91 matching lines @@
   void ScreenshotCaptured(
       DevToolsCommandId command_id,
       const unsigned char* png_data,
       size_t png_size);
 
   void OnColorPicked(int r, int g, int b, int a);
   void OnFramesRecorded(
       DevToolsCommandId command_id,
       scoped_refptr<StopRecordingFramesResponse> response_data);
 
-  void QueryUsageAndQuotaCompleted(
-      DevToolsCommandId command_id,
-      scoped_refptr<QueryUsageAndQuotaResponse> response);
-
   bool enabled_;
   bool touch_emulation_enabled_;
   std::string touch_emulation_configuration_;
 
   bool screencast_enabled_;
   std::string screencast_format_;
   int screencast_quality_;
   int screencast_max_width_;
   int screencast_max_height_;
   int capture_retry_count_;
@@ skipping 12 matching lines @@
   base::WeakPtrFactory<PageHandler> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(PageHandler);
 };
 
 }  // namespace page
 }  // namespace devtools
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_DEVTOOLS_PROTOCOL_PAGE_HANDLER_H_