Part 3/3 (RWH/IOSurface) of adding with device scale factor to transport surfaces

content/browser/gpu/gpu_process_host.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/browser/gpu/gpu_process_host.h"
 
 #include "base/base64.h"
 #include "base/base_switches.h"
 #include "base/bind.h"
 #include "base/bind_helpers.h"
@@ skipping 907 matching lines @@
   RenderWidgetHelper* helper =
       RenderWidgetHelper::FromProcessHostID(render_process_id);
   if (!helper)
     return;
 
   // Pass the SwapBuffers on to the RenderWidgetHelper to wake up the UI thread
   // if the browser is waiting for a new frame. Otherwise the RenderWidgetHelper
   // will forward to the RenderWidgetHostView via RenderProcessHostImpl and
   // RenderWidgetHostImpl.
   scoped_completion_runner.Release();
+
+  ViewHostMsg_CompositorSurfaceBuffersSwapped_Params view_params;
+  view_params.surface_id = params.surface_id;
+  view_params.surface_handle = params.surface_handle;
+  view_params.route_id = params.route_id;
+  view_params.size = params.size;
+  view_params.scale_factor = params.scale_factor;
+  view_params.gpu_process_host_id = host_id_;
   helper->DidReceiveBackingStoreMsg(ViewHostMsg_CompositorSurfaceBuffersSwapped(
       render_widget_id,
-      params.surface_id,
-      params.surface_handle,
-      params.route_id,
-      params.size,
-      host_id_));
+      view_params));
 }
 #endif  // OS_MACOSX
 
 #if defined(OS_WIN)
 void GpuProcessHost::OnAcceleratedSurfaceBuffersSwapped(
     const GpuHostMsg_AcceleratedSurfaceBuffersSwapped_Params& params) {
   TRACE_EVENT0("gpu", "GpuProcessHost::OnAcceleratedSurfaceBuffersSwapped");
 
   base::ScopedClosureRunner scoped_completion_runner(
       base::Bind(&AcceleratedSurfaceBuffersSwappedCompleted,
@@ skipping 311 matching lines @@
   TRACE_EVENT0("gpu", "GpuProcessHost::OnCacheShader");
   ClientIdToShaderCacheMap::iterator iter =
       client_id_to_shader_cache_.find(client_id);
   // If the cache doesn't exist then this is an off the record profile.
   if (iter == client_id_to_shader_cache_.end())
     return;
   iter->second->Cache(GetShaderPrefixKey() + ":" + key, shader);
 }
 
 }  // namespace content