[Android WebView] Fix DevTools Screencast slowness

content/browser/compositor/delegated_frame_host.cc

 // 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.
 
 #include "content/browser/compositor/delegated_frame_host.h"
 
 #include "base/callback_helpers.h"
 #include "base/command_line.h"
 #include "cc/output/compositor_frame.h"
 #include "cc/output/compositor_frame_ack.h"
@@ skipping 482 matching lines @@
       texture_mailbox.sync_point(),
       result->size(),
       gfx::Rect(result->size()),
       dst_size_in_pixel,
       pixels,
       config,
       base::Bind(&CopyFromCompositingSurfaceFinished,
                  callback,
                  base::Passed(&release_callback),
                  base::Passed(&bitmap),
-                 base::Passed(&bitmap_pixels_lock)));
+                 base::Passed(&bitmap_pixels_lock)),
+      GLHelper::SCALER_QUALITY_FAST);
 }
 
 // static
 void DelegatedFrameHost::PrepareBitmapCopyOutputResult(
     const gfx::Size& dst_size_in_pixel,
     const SkBitmap::Config config,
     const base::Callback<void(bool, const SkBitmap&)>& callback,
     scoped_ptr<cc::CopyOutputResult> result) {
   if (config != SkBitmap::kARGB_8888_Config) {
     NOTIMPLEMENTED();
@@ skipping 339 matching lines @@
   // that should keep our frame. old_layer will be returned to the
   // RecreateLayer caller, and should have a copy.
   if (frame_provider_.get()) {
     new_layer->SetShowDelegatedContent(frame_provider_.get(),
                                        current_frame_size_in_dip_);
   }
 }
 
 }  // namespace content