Support error handling for Surface readbacks

content/browser/renderer_host/render_widget_host_impl.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.
 
 #ifndef CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_IMPL_H_
 #define CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_IMPL_H_
 
 #include <deque>
 #include <list>
 #include <map>
@@ skipping 15 matching lines @@
 #include "cc/base/rolling_time_delta_history.h"
 #include "cc/resources/shared_bitmap.h"
 #include "content/browser/renderer_host/event_with_latency_info.h"
 #include "content/browser/renderer_host/input/input_ack_handler.h"
 #include "content/browser/renderer_host/input/input_router_client.h"
 #include "content/browser/renderer_host/input/synthetic_gesture.h"
 #include "content/browser/renderer_host/input/touch_emulator_client.h"
 #include "content/common/input/input_event_ack_state.h"
 #include "content/common/input/synthetic_gesture_packet.h"
 #include "content/common/view_message_enums.h"
+#include "content/public/browser/readback_types.h"
 #include "content/public/browser/render_widget_host.h"
 #include "content/public/common/page_zoom.h"
 #include "ipc/ipc_listener.h"
 #include "ui/base/ime/text_input_mode.h"
 #include "ui/base/ime/text_input_type.h"
 #include "ui/events/latency_info.h"
 #include "ui/gfx/native_widget_types.h"
 
 struct AcceleratedSurfaceMsg_BufferPresented_Params;
 struct ViewHostMsg_BeginSmoothScroll_Params;
@@ skipping 79 matching lines @@
   void set_hung_renderer_delay_ms(const base::TimeDelta& timeout) {
     hung_renderer_delay_ms_ = timeout.InMilliseconds();
   }
 
   // RenderWidgetHost implementation.
   void UpdateTextDirection(blink::WebTextDirection direction) override;
   void NotifyTextDirection() override;
   void Focus() override;
   void Blur() override;
   void SetActive(bool active) override;
-  void CopyFromBackingStore(
-      const gfx::Rect& src_rect,
-      const gfx::Size& accelerated_dst_size,
-      const base::Callback<void(bool, const SkBitmap&)>& callback,
-      const SkColorType color_type) override;
+  void CopyFromBackingStore(const gfx::Rect& src_rect,
+                            const gfx::Size& accelerated_dst_size,
+                            ReadbackRequestCallback& callback,
+                            const SkColorType color_type) override;
   bool CanCopyFromBackingStore() override;
 #if defined(OS_ANDROID)
   virtual void LockBackingStore() override;
   virtual void UnlockBackingStore() override;
 #endif
   void ForwardMouseEvent(const blink::WebMouseEvent& mouse_event) override;
   void ForwardWheelEvent(const blink::WebMouseWheelEvent& wheel_event) override;
   void ForwardKeyboardEvent(const NativeWebKeyboardEvent& key_event) override;
   RenderProcessHost* GetProcess() const override;
   int GetRoutingID() const override;
@@ skipping 703 matching lines @@
   cc::RollingTimeDeltaHistory browser_composite_latency_history_;
 
   base::WeakPtrFactory<RenderWidgetHostImpl> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderWidgetHostImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_IMPL_H_