Add RGB565 Texture readback support in gl_helper

content/browser/renderer_host/render_widget_host_view_aura.h

 // Copyright (c) 2012 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_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_AURA_H_
 #define CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_AURA_H_
 
 #include <map>
 #include <string>
 #include <vector>
@@ skipping 463 matching lines @@
   void SetSurfaceNotInUseByCompositor(scoped_refptr<ui::Texture>);
 
   // Called after async thumbnailer task completes.  Scales and crops the result
   // of the copy.
   static void CopyFromCompositingSurfaceHasResult(
       const gfx::Size& dst_size_in_pixel,
       const base::Callback<void(bool, const SkBitmap&)>& callback,
       scoped_ptr<cc::CopyOutputResult> result);
   static void PrepareTextureCopyOutputResult(
       const gfx::Size& dst_size_in_pixel,
+      bool readback_config_rgb565,
       const base::Callback<void(bool, const SkBitmap&)>& callback,
       scoped_ptr<cc::CopyOutputResult> result);
   static void PrepareBitmapCopyOutputResult(
       const gfx::Size& dst_size_in_pixel,
       const base::Callback<void(bool, const SkBitmap&)>& callback,
       scoped_ptr<cc::CopyOutputResult> result);
   static void CopyFromCompositingSurfaceHasResultForVideo(
       base::WeakPtr<RenderWidgetHostViewAura> rwhva,
       scoped_refptr<OwnedMailbox> subscriber_texture,
       scoped_refptr<media::VideoFrame> video_frame,
@@ skipping 291 matching lines @@
   // passed to windowless plugins like Flash/Silverlight, etc as the
   // container window.
   HWND plugin_parent_window_;
 #endif
   DISALLOW_COPY_AND_ASSIGN(RenderWidgetHostViewAura);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_AURA_H_