cc: Remove unused CopyOutputRequest::Equals

cc/output/copy_output_request.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 CC_OUTPUT_COPY_OUTPUT_REQUEST_H_
 #define CC_OUTPUT_COPY_OUTPUT_REQUEST_H_
 
 #include "base/callback.h"
 #include "base/memory/scoped_ptr.h"
 #include "cc/base/cc_export.h"
@@ skipping 49 matching lines @@
   gfx::Rect area() const { return area_; }
 
   void SendEmptyResult();
   void SendBitmapResult(scoped_ptr<SkBitmap> bitmap);
   void SendTextureResult(gfx::Size size,
                          const TextureMailbox& texture_mailbox,
                          scoped_ptr<SingleReleaseCallback> release_callback);
 
   void SendResult(scoped_ptr<CopyOutputResult> result);
 
-  bool Equals(const CopyOutputRequest& other) const {
-    return result_callback_.Equals(other.result_callback_) &&
-        force_bitmap_result_ == other.force_bitmap_result_;
-  }
-
  private:
   CopyOutputRequest();
   explicit CopyOutputRequest(bool force_bitmap_result,
                              const CopyOutputRequestCallback& result_callback);
 
   bool force_bitmap_result_;
   bool has_area_;
   gfx::Rect area_;
   CopyOutputRequestCallback result_callback_;
 };
 
 }  // namespace cc
 
 #endif  // CC_OUTPUT_COPY_OUTPUT_REQUEST_H_