Part 1/3 (compositor) of adding with device scale factor to transport surfaces

cc/output/output_surface.cc

 // Copyright (c) 2013 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 "cc/output/output_surface.h"
 
 #include <set>
 #include <string>
 #include <vector>
 
@@ skipping 94 matching lines @@
   if (has_gl_discard_backbuffer_)
     context3d_->ensureBackbufferCHROMIUM();
 }
 
 void OutputSurface::DiscardBackbuffer() {
   DCHECK(context3d_);
   if (has_gl_discard_backbuffer_)
     context3d_->discardBackbufferCHROMIUM();
 }
 
-void OutputSurface::Reshape(gfx::Size size) {
+void OutputSurface::Reshape(gfx::Size size, float scale_factor) {
   DCHECK(context3d_);
-  context3d_->reshape(size.width(), size.height());
+  context3d_->reshapeWithScaleFactor(size.width(), size.height(), scale_factor);
 }
 
 void OutputSurface::BindFramebuffer() {
   DCHECK(context3d_);
   context3d_->bindFramebuffer(GL_FRAMEBUFFER, 0);
 }
 
 void OutputSurface::SwapBuffers(const LatencyInfo& latency_info) {
   DCHECK(context3d_);
   // Note that currently this has the same effect as SwapBuffers; we should
   // consider exposing a different entry point on WebGraphicsContext3D.
   context3d_->prepareTexture();
 }
 
 void OutputSurface::PostSubBuffer(gfx::Rect rect,
                                   const LatencyInfo& latency_info) {
   DCHECK(context3d_);
   context3d_->postSubBufferCHROMIUM(
       rect.x(), rect.y(), rect.width(), rect.height());
 }
 
 }  // namespace cc