cc: Pass SurfaceId by const ref in more places

content/browser/renderer_host/delegated_frame_host.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/renderer_host/delegated_frame_host.h"
 
 #include <algorithm>
 #include <string>
 #include <utility>
 #include <vector>
@@ skipping 208 matching lines @@
   cc::SurfaceId target_surface_id =
       hittest.GetTargetSurfaceAtPoint(surface_id_, point, &target_transform);
   *transformed_point = point;
   if (!target_surface_id.is_null())
     target_transform.TransformPoint(transformed_point);
   return target_surface_id;
 }
 
 void DelegatedFrameHost::TransformPointToLocalCoordSpace(
     const gfx::Point& point,
-    cc::SurfaceId original_surface,
+    const cc::SurfaceId& original_surface,
     gfx::Point* transformed_point) {
   *transformed_point = point;
   if (surface_id_.is_null() || original_surface == surface_id_)
     return;
 
   gfx::Transform transform;
   cc::SurfaceHittest hittest(nullptr, GetSurfaceManager());
   if (hittest.GetTransformToTargetSurface(surface_id_, original_surface,
                                           &transform) &&
       transform.GetInverse(&transform)) {
@@ skipping 662 matching lines @@
     cc::SurfaceManager* manager = factory->GetSurfaceManager();
     new_layer->SetShowSurface(
         surface_id_, base::Bind(&SatisfyCallback, base::Unretained(manager)),
         base::Bind(&RequireCallback, base::Unretained(manager)),
         current_surface_size_, current_scale_factor_,
         current_frame_size_in_dip_);
   }
 }
 
 }  // namespace content