Match html canvas which is transferred to OffscreenCanvas to CSS style

blimp/client/core/compositor/blimp_compositor.cc

 // Copyright 2015 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 "blimp/client/core/compositor/blimp_compositor.h"
 
 #include "base/bind_helpers.h"
 #include "base/command_line.h"
 #include "base/memory/ptr_util.h"
 #include "base/metrics/histogram_macros.h"
@@ skipping 316 matching lines @@
     current_surface_size_ = surface_size;
 
     // manager must outlive compositors using it.
     cc::SurfaceManager* surface_manager =
         GetEmbedderDeps()->GetSurfaceManager();
     scoped_refptr<cc::SurfaceLayer> content_layer = cc::SurfaceLayer::Create(
         base::Bind(&SatisfyCallback, base::Unretained(surface_manager)),
         base::Bind(&RequireCallback, base::Unretained(surface_manager)));
     content_layer->SetSurfaceId(
         cc::SurfaceId(surface_factory_->frame_sink_id(), local_frame_id_), 1.f,
-        surface_size);
+        surface_size, false /* strecth_content_to_fill_bounds */);

[danakj, 2016/12/16 14:30:44]

"strecth" => stretch

     content_layer->SetBounds(current_surface_size_);
     content_layer->SetIsDrawable(true);
     content_layer->SetContentsOpaque(true);
 
     layer_->AddChild(content_layer);
   }
 
   surface_factory_->SubmitCompositorFrame(
       local_frame_id_, std::move(frame),
       base::Bind(&BlimpCompositor::SubmitCompositorFrameAck,
@@ skipping 112 matching lines @@
   // Destroy the old LayerTreeHost state.
   host_.reset();
 
   // Cancel any outstanding CompositorFrameSink requests.  That way if we get an
   // async callback related to the old request we know to drop it.
   compositor_frame_sink_request_pending_ = false;
 }
 
 }  // namespace client
 }  // namespace blimp