Update the native_viewport interface to allow specification of the surface configuration, currently…

sky/shell/gpu/rasterizer.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 "sky/shell/gpu/rasterizer.h"
 
 #include "base/trace_event/trace_event.h"
 #include "sky/shell/gpu/ganesh_context.h"
 #include "sky/shell/gpu/ganesh_surface.h"
 #include "third_party/skia/include/core/SkCanvas.h"
@@ skipping 19 matching lines @@
 }
 
 Rasterizer::~Rasterizer() {
 }
 
 base::WeakPtr<Rasterizer> Rasterizer::GetWeakPtr() {
   return weak_factory_.GetWeakPtr();
 }
 
 void Rasterizer::OnAcceleratedWidgetAvailable(gfx::AcceleratedWidget widget) {
-  surface_ = gfx::GLSurface::CreateViewGLSurface(widget);
+  surface_ = gfx::GLSurface::CreateViewGLSurface(widget,
+                                                 gfx::SurfaceConfiguration());
   CHECK(surface_) << "GLSurface required.";
 }
 
 void Rasterizer::Draw(skia::RefPtr<SkPicture> picture) {
   TRACE_EVENT0("sky", "Rasterizer::Draw");
 
   if (!surface_)
     return;
 
   gfx::Size size = GetSize(picture.get());
@@ skipping 32 matching lines @@
   ganesh_context_.reset(new GaneshContext(context_.get()));
 }
 
 void Rasterizer::EnsureGaneshSurface(const gfx::Size& size) {
   if (!ganesh_surface_ || ganesh_surface_->size() != size)
     ganesh_surface_.reset(new GaneshSurface(ganesh_context_.get(), size));
 }
 
 }  // namespace shell
 }  // namespace sky