Part 2/3 (GL) of adding with device scale factor to transport surfaces

content/common/gpu/texture_image_transport_surface.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 "content/common/gpu/texture_image_transport_surface.h"
 
 #include <string>
 #include <vector>
 
 #include "base/command_line.h"
@@ skipping 13 matching lines @@
 using gpu::gles2::TextureManager;
 
 namespace content {
 
 TextureImageTransportSurface::TextureImageTransportSurface(
     GpuChannelManager* manager,
     GpuCommandBufferStub* stub,
     const gfx::GLSurfaceHandle& handle)
       : fbo_id_(0),
         backbuffer_(CreateTextureDefinition(gfx::Size(), 0)),
+        scale_factor_(1.f),
         stub_destroyed_(false),
         backbuffer_suggested_allocation_(true),
         frontbuffer_suggested_allocation_(true),
         handle_(handle),
         is_swap_buffers_pending_(false),
         did_unschedule_(false) {
   helper_.reset(new ImageTransportHelper(this,
                                          manager,
                                          stub,
                                          gfx::kNullPluginWindow));
@@ skipping 117 matching lines @@
 }
 
 void* TextureImageTransportSurface::GetDisplay() {
   return surface_.get() ? surface_->GetDisplay() : NULL;
 }
 
 void* TextureImageTransportSurface::GetConfig() {
   return surface_.get() ? surface_->GetConfig() : NULL;
 }
 
-void TextureImageTransportSurface::OnResize(gfx::Size size) {
+void TextureImageTransportSurface::OnResize(gfx::Size size,
+                                            float scale_factor) {
   current_size_ = size;
+  scale_factor_ = scale_factor;
   CreateBackTexture();
 }
 
 void TextureImageTransportSurface::OnWillDestroyStub() {
   helper_->stub()->RemoveDestructionObserver(this);
 
   GpuHostMsg_AcceleratedSurfaceRelease_Params params;
   helper_->SendAcceleratedSurfaceRelease(params);
 
   ReleaseBackTexture();
@@ skipping 311 matching lines @@
       GL_TEXTURE_2D,
       mailbox_name_,
       backbuffer_.release(),
       NULL);
   DCHECK(success);
   mailbox_name_ = MailboxName();
   backbuffer_.reset(CreateTextureDefinition(gfx::Size(), 0));
 }
 
 }  // namespace content