Support error handling for Surface readbacks

content/browser/devtools/renderer_overrides_handler.h

 // Copyright (c) 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 CONTENT_BROWSER_DEVTOOLS_RENDERER_OVERRIDES_HANDLER_H_
 #define CONTENT_BROWSER_DEVTOOLS_RENDERER_OVERRIDES_HANDLER_H_
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/memory/ref_counted_memory.h"
@@ skipping 84 matching lines @@
   scoped_refptr<DevToolsProtocol::Response> PageQueryUsageAndQuota(
       scoped_refptr<DevToolsProtocol::Command>);
   scoped_refptr<DevToolsProtocol::Response> PageSetColorPickerEnabled(
       scoped_refptr<DevToolsProtocol::Command>);
 
   void ScreenshotCaptured(
       scoped_refptr<DevToolsProtocol::Command> command,
       const unsigned char* png_data,
       size_t png_size);
 
-  void ScreencastFrameCaptured(
-      const std::string& format,
-      int quality,
-      const cc::CompositorFrameMetadata& metadata,
-      bool success,
-      const SkBitmap& bitmap);
+  void ScreencastFrameCaptured(const std::string& format,
+                               int quality,
+                               const cc::CompositorFrameMetadata& metadata,
+                               bool success,
+                               const SkBitmap& bitmap,
+                               const int& response);
 
   void PageQueryUsageAndQuotaCompleted(
      scoped_refptr<DevToolsProtocol::Command>,
      scoped_ptr<base::DictionaryValue> response_data);
 
   void NotifyScreencastVisibility(bool visible);
   void SetColorPickerEnabled(bool enabled);
   void UpdateColorPickerFrame();
   void ResetColorPickerFrame();
-  void ColorPickerFrameUpdated(bool succeeded, const SkBitmap& bitmap);
+  void ColorPickerFrameUpdated(bool succeeded,
+                               const SkBitmap& bitmap,
+                               const int& response);
   bool HandleMouseEvent(const blink::WebMouseEvent& event);
   void UpdateColorPickerCursor();
 
   // Input domain.
   scoped_refptr<DevToolsProtocol::Response> InputEmulateTouchFromMouseEvent(
       scoped_refptr<DevToolsProtocol::Command> command);
 
   void UpdateTouchEventEmulationState();
 
   RenderViewHostImpl* host_;
   bool page_domain_enabled_;
   scoped_refptr<DevToolsProtocol::Command> screencast_command_;
   bool has_last_compositor_frame_metadata_;
   cc::CompositorFrameMetadata last_compositor_frame_metadata_;
   base::TimeTicks last_frame_time_;
   int capture_retry_count_;
   bool touch_emulation_enabled_;
   bool color_picker_enabled_;
   SkBitmap color_picker_frame_;
   int last_cursor_x_;
   int last_cursor_y_;
   RenderWidgetHost::MouseEventCallback mouse_event_callback_;
   base::WeakPtrFactory<RendererOverridesHandler> weak_factory_;
   DISALLOW_COPY_AND_ASSIGN(RendererOverridesHandler);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_DEVTOOLS_RENDERER_OVERRIDES_HANDLER_H_