android: Fix inconsistent sizes in GetScaledContentBitmap

ui/snapshot/snapshot_aura.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 "ui/snapshot/snapshot.h"
 
 #include "base/bind.h"
 #include "base/callback.h"
 #include "base/task_runner_util.h"
 #include "cc/output/copy_output_request.h"
@@ skipping 18 matching lines @@
   // Not supported in Aura.  Callers should fall back to the async version.
   return false;
 }
 
 static void MakeAsyncCopyRequest(
     gfx::NativeWindow window,
     const gfx::Rect& source_rect,
     const cc::CopyOutputRequest::CopyOutputRequestCallback& callback) {
   scoped_ptr<cc::CopyOutputRequest> request =
       cc::CopyOutputRequest::CreateBitmapRequest(callback);
-  request->set_area(ui::ConvertRectToPixel(window->layer(), source_rect));
+  request->set_area(source_rect);
   window->layer()->RequestCopyOfOutput(request.Pass());
 }
 
 void GrabWindowSnapshotAndScaleAsync(
     gfx::NativeWindow window,
     const gfx::Rect& source_rect,
     const gfx::Size& target_size,
     scoped_refptr<base::TaskRunner> background_task_runner,
     const GrabWindowSnapshotAsyncCallback& callback) {
   MakeAsyncCopyRequest(window,
@@ skipping 19 matching lines @@
 void GrabViewSnapshotAsync(
     gfx::NativeView view,
     const gfx::Rect& source_rect,
     scoped_refptr<base::TaskRunner> background_task_runner,
     const GrabWindowSnapshotAsyncPNGCallback& callback) {
   GrabWindowSnapshotAsync(view, source_rect, background_task_runner, callback);
 }
 
 
 }  // namespace ui