Declare a new name for CompositingSurface completion callback.

content/browser/renderer_host/render_widget_host_view_android.cc

 // 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.
 
 #include "content/browser/renderer_host/render_widget_host_view_android.h"
 
 #include <android/bitmap.h>
 
 #include "base/android/build_info.h"
 #include "base/basictypes.h"
@@ skipping 371 matching lines @@
     ReadbackRequest& readback_request = readbacks_waiting_for_frame_.front();
     readback_request.GetResultCallback().Run(false, SkBitmap());
     readbacks_waiting_for_frame_.pop();
   }
 }
 
 void RenderWidgetHostViewAndroid::GetScaledContentBitmap(
     float scale,
     SkColorType color_type,
     gfx::Rect src_subrect,
-    const base::Callback<void(bool, const SkBitmap&)>& result_callback) {
+    CopyFromCompositingSurfaceCallback& result_callback) {
   if (!host_ || host_->is_hidden()) {
     result_callback.Run(false, SkBitmap());
     return;
   }
   if (!IsSurfaceAvailableForCopy()) {
     // The view is visible, probably the frame has not yet arrived.
     // Just add the ReadbackRequest to queue and wait for frame arrival
     // to get this request processed.
     readbacks_waiting_for_frame_.push(
         ReadbackRequest(scale, color_type, src_subrect, result_callback));
@@ skipping 441 matching lines @@
 }
 
 void RenderWidgetHostViewAndroid::SetBackgroundOpaque(bool opaque) {
   RenderWidgetHostViewBase::SetBackgroundOpaque(opaque);
   host_->SetBackgroundOpaque(opaque);
 }
 
 void RenderWidgetHostViewAndroid::CopyFromCompositingSurface(
     const gfx::Rect& src_subrect,
     const gfx::Size& dst_size,
-    const base::Callback<void(bool, const SkBitmap&)>& callback,
+    CopyFromCompositingSurfaceCallback& callback,
     const SkColorType color_type) {
   TRACE_EVENT0("cc", "RenderWidgetHostViewAndroid::CopyFromCompositingSurface");
   if ((!host_ || host_->is_hidden()) ||
       !IsReadbackConfigSupported(color_type)) {
     callback.Run(false, SkBitmap());
     return;
   }
   base::TimeTicks start_time = base::TimeTicks::Now();
   if (!using_synchronous_compositor_ && !IsSurfaceAvailableForCopy()) {
     callback.Run(false, SkBitmap());
@@ skipping 1002 matching lines @@
   results->orientationAngle = display.RotationAsDegree();
   results->orientationType =
       RenderWidgetHostViewBase::GetOrientationTypeForMobile(display);
   gfx::DeviceDisplayInfo info;
   results->depth = info.GetBitsPerPixel();
   results->depthPerComponent = info.GetBitsPerComponent();
   results->isMonochrome = (results->depthPerComponent == 0);
 }
 
 } // namespace content