Support error handling for Surface readbacks

content/browser/browser_plugin/browser_plugin_guest.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.
 
 // A BrowserPluginGuest is the browser side of a browser <--> embedder
 // renderer channel. A BrowserPlugin (a WebPlugin) is on the embedder
 // renderer side of browser <--> embedder renderer communication.
 //
 // BrowserPluginGuest lives on the UI thread of the browser process. Any
 // messages about the guest render process that the embedder might be interested
 // in receiving should be listened for here.
 //
 // BrowserPluginGuest is a WebContentsObserver for the guest WebContents.
 // BrowserPluginGuest operates under the assumption that the guest will be
 // accessible through only one RenderViewHost for the lifetime of
 // the guest WebContents. Thus, cross-process navigation is not supported.
 
 #ifndef CONTENT_BROWSER_BROWSER_PLUGIN_BROWSER_PLUGIN_GUEST_H_
 #define CONTENT_BROWSER_BROWSER_PLUGIN_BROWSER_PLUGIN_GUEST_H_
 
 #include <map>
 #include <queue>
 
 #include "base/compiler_specific.h"
 #include "base/memory/linked_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "base/values.h"
 #include "content/common/edit_command.h"
 #include "content/common/input/input_event_ack_state.h"
+#include "content/common/readback_types.h"
 #include "content/public/browser/browser_plugin_guest_delegate.h"
 #include "content/public/browser/web_contents_observer.h"
 #include "third_party/WebKit/public/web/WebCompositionUnderline.h"
 #include "third_party/WebKit/public/web/WebDragOperation.h"
 #include "third_party/WebKit/public/web/WebDragStatus.h"
 #include "third_party/WebKit/public/web/WebInputEvent.h"
 #include "ui/base/ime/text_input_mode.h"
 #include "ui/base/ime/text_input_type.h"
 #include "ui/gfx/rect.h"
 
@@ skipping 96 matching lines @@
   // Returns the embedder's RenderWidgetHostView if it is available.
   // Returns NULL otherwise.
   RenderWidgetHostView* GetEmbedderRenderWidgetHostView();
 
   bool focused() const { return focused_; }
   bool visible() const { return guest_visible_; }
   bool is_in_destruction() { return is_in_destruction_; }
 
   void UpdateVisibility();
 
-  void CopyFromCompositingSurface(
-      gfx::Rect src_subrect,
-      gfx::Size dst_size,
-      const base::Callback<void(bool, const SkBitmap&)>& callback);
+  void CopyFromCompositingSurface(gfx::Rect src_subrect,
+                                  gfx::Size dst_size,
+                                  CopyFromCompositingSurfaceCallback& callback);
 
   BrowserPluginGuestManager* GetBrowserPluginGuestManager() const;
 
   // WebContentsObserver implementation.
   virtual void DidCommitProvisionalLoadForFrame(
       RenderFrameHost* render_frame_host,
       const GURL& url,
       ui::PageTransition transition_type) OVERRIDE;
 
   virtual void RenderViewReady() OVERRIDE;
@@ skipping 175 matching lines @@
   gfx::Rect guest_window_rect_;
   bool focused_;
   bool mouse_locked_;
   bool pending_lock_request_;
   bool guest_visible_;
   bool embedder_visible_;
 
   // Each copy-request is identified by a unique number. The unique number is
   // used to keep track of the right callback.
   int copy_request_id_;
-  typedef base::Callback<void(bool, const SkBitmap&)> CopyRequestCallback;
-  typedef std::map<int, const CopyRequestCallback> CopyRequestMap;
+  typedef std::map<int, const CopyFromCompositingSurfaceCallback>
+      CopyRequestMap;
   CopyRequestMap copy_request_callbacks_;
 
   // Indicates that this BrowserPluginGuest has associated renderer-side state.
   // This is used to determine whether or not to create a new RenderView when
   // this guest is attached. A BrowserPluginGuest would have renderer-side state
   // prior to attachment if it is created via a call to window.open and
   // maintains a JavaScript reference to its opener.
   bool has_render_view_;
 
   // Last seen size of guest contents (by SwapCompositorFrame).
@@ skipping 17 matching lines @@
   // Weak pointer used to ask GeolocationPermissionContext about geolocation
   // permission.
   base::WeakPtrFactory<BrowserPluginGuest> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(BrowserPluginGuest);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_BROWSER_PLUGIN_BROWSER_PLUGIN_GUEST_H_