[#7] Pass gfx structs by const ref (gfx::Size)

content/browser/compositor/browser_compositor_output_surface.cc

 // Copyright 2014 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/compositor/browser_compositor_output_surface.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/location.h"
 #include "base/message_loop/message_loop_proxy.h"
@@ skipping 62 matching lines @@
 
   if (!OutputSurface::BindToClient(client))
     return false;
 
   output_surface_map_->AddWithID(this, surface_id_);
   if (reflector_)
     reflector_->OnSourceSurfaceReady(surface_id_);
   return true;
 }
 
-void BrowserCompositorOutputSurface::Reshape(gfx::Size size,
+void BrowserCompositorOutputSurface::Reshape(const gfx::Size& size,
                                              float scale_factor) {
   OutputSurface::Reshape(size, scale_factor);
   if (reflector_.get())
     reflector_->OnReshape(size);
 }
 
 void BrowserCompositorOutputSurface::OnUpdateVSyncParameters(
     base::TimeTicks timebase,
     base::TimeDelta interval) {
   DCHECK(CalledOnValidThread());
   DCHECK(HasClient());
   OnVSyncParametersChanged(timebase, interval);
   compositor_message_loop_->PostTask(
       FROM_HERE,
       base::Bind(&ui::Compositor::OnUpdateVSyncParameters,
                  compositor_, timebase, interval));
 }
 
 void BrowserCompositorOutputSurface::SetReflector(ReflectorImpl* reflector) {
   reflector_ = reflector;
 }
 
 }  // namespace content