Support error handling for Surface readbacks

athena/content/content_proxy.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 ATHENA_CONTENT_CONTENT_PROXY_H_
 #define ATHENA_CONTENT_CONTENT_PROXY_H_
 
 #include "base/macros.h"
 #include "base/memory/ref_counted_memory.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
+#include "content/public/browser/readback_types.h"
 #include "ui/gfx/image/image_skia.h"
 
 namespace views {
 class WebView;
 }
 
 namespace athena {
 
 class ProxyImageData;
 
@@ skipping 41 matching lines @@
   // MakeVisible.
   void HideOriginalContent();
 
   // Creates proxy content from |web_view_|.
   void CreateProxyContent();
 
   // Creates an image from the current content.
   bool CreateContentImage();
 
   // Called once the content was read back.
-  void OnContentImageRead(bool success, const SkBitmap& bitmap);
+  void OnContentImageRead(const SkBitmap& bitmap,
+                          content::ReadbackResponse response);
 
   // Called once the image content has been converted to PNG.
   void OnContentImageEncodeComplete(scoped_refptr<ProxyImageData> image);
 
   // The web view which was passed on creation and is associated with this
   // object. It will be shown when OnPreContentDestroyed() gets called and then
   // set to nullptr. The ownership remains with the creator.
   views::WebView* web_view_;
 
   // While we are doing our PNG encode, we keep the read back image to have
@@ skipping 20 matching lines @@
   // weakptr for the callback to make sure that the read back / encoding image
   // completion callback does not trigger on a destroyed ContentProxy.
   base::WeakPtrFactory<ContentProxy> proxy_content_to_image_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ContentProxy);
 };
 
 }  // namespace athena
 
 #endif  // ATHENA_CONTENT_CONTENT_PROXY_H_