Support error handling for Surface readbacks

content/browser/devtools/protocol/color_picker.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_COLOR_PICKER_H_
 #define CONTENT_BROWSER_DEVTOOLS_PROTOCOL_COLOR_PICKER_H_
 
 #include "base/callback.h"
 #include "content/public/browser/render_widget_host.h"
 #include "third_party/skia/include/core/SkBitmap.h"
@@ skipping 16 matching lines @@
   explicit ColorPicker(ColorPickedCallback callback);
   virtual ~ColorPicker();
 
   void SetRenderViewHost(RenderViewHostImpl* host);
   void SetEnabled(bool enabled);
   void OnSwapCompositorFrame();
 
  private:
   void UpdateFrame();
   void ResetFrame();
-  void FrameUpdated(bool succeeded, const SkBitmap& bitmap);
+  void FrameUpdated(const SkBitmap&, ReadbackResponse);
   bool HandleMouseEvent(const blink::WebMouseEvent& event);
   void UpdateCursor();
 
   ColorPickedCallback callback_;
   bool enabled_;
   SkBitmap frame_;
   int last_cursor_x_;
   int last_cursor_y_;
   RenderWidgetHost::MouseEventCallback mouse_event_callback_;
   RenderViewHostImpl* host_;
   base::WeakPtrFactory<ColorPicker> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ColorPicker);
 };
 
 }  // namespace page
 }  // namespace devtools
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_DEVTOOLS_PROTOCOL_COLOR_PICKER_H_