Support error handling for Surface readbacks

content/browser/devtools/renderer_overrides_handler.cc

 // 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.
 
 #include "content/browser/devtools/renderer_overrides_handler.h"
 
 #include <map>
 #include <string>
 
 #include "base/barrier_closure.h"
@@ skipping 614 matching lines @@
   screencast_command_ = NULL;
   UpdateTouchEventEmulationState();
   return command->SuccessResponse(NULL);
 }
 
 void RendererOverridesHandler::ScreencastFrameCaptured(
     const std::string& format,
     int quality,
     const cc::CompositorFrameMetadata& metadata,
     bool success,
-    const SkBitmap& bitmap) {
+    const SkBitmap& bitmap,
+    const int& readback_response) {
   if (!success) {
     if (capture_retry_count_) {
       --capture_retry_count_;
       base::MessageLoop::current()->PostDelayedTask(
           FROM_HERE,
           base::Bind(&RendererOverridesHandler::InnerSwapCompositorFrame,
                      weak_factory_.GetWeakPtr()),
           base::TimeDelta::FromMilliseconds(kFrameRateThresholdMs));
     }
     return;
@@ skipping 361 matching lines @@
                  weak_factory_.GetWeakPtr()),
       kN32_SkColorType);
 }
 
 void RendererOverridesHandler::ResetColorPickerFrame() {
   color_picker_frame_.reset();
   last_cursor_x_ = -1;
   last_cursor_y_ = -1;
 }
 
-void RendererOverridesHandler::ColorPickerFrameUpdated(
-    bool succeeded,
-    const SkBitmap& bitmap) {
+void RendererOverridesHandler::ColorPickerFrameUpdated(bool succeeded,
+                                                       const SkBitmap& bitmap,
+                                                       const int& response) {
   if (!color_picker_enabled_)
     return;
 
   if (succeeded) {
     color_picker_frame_ = bitmap;
     UpdateColorPickerCursor();
   }
 }
 
 bool RendererOverridesHandler::HandleMouseEvent(
@@ skipping 295 matching lines @@
     return;
   bool enabled = touch_emulation_enabled_ || screencast_command_.get();
   host_->SetTouchEventEmulationEnabled(enabled);
   WebContentsImpl* web_contents = static_cast<WebContentsImpl*>(
       WebContents::FromRenderViewHost(host_));
   if (web_contents)
     web_contents->SetForceDisableOverscrollContent(enabled);
 }
 
 }  // namespace content