Fix header guard in cc/surfaces/display

cc/surfaces/display.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.
 
-#ifndef CC_SURFACES_DISPLAY_H_
-#define CC_SURFACES_DISPLAY_H_
-
 #include "cc/surfaces/display.h"
 
 #include "base/message_loop/message_loop.h"
 #include "cc/output/compositor_frame.h"
 #include "cc/output/direct_renderer.h"
 #include "cc/output/gl_renderer.h"
 #include "cc/surfaces/display_client.h"
 #include "cc/surfaces/surface.h"
 #include "ui/gfx/frame_time.h"
 
@@ skipping 86 matching lines @@
 int Display::CurrentSurfaceID() {
   return current_surface_ ? current_surface_->surface_id() : 0;
 }
 
 void Display::ReturnResources(const ReturnedResourceArray& resources) {
   // We never generate any resources, so we should never have any returned.
   DCHECK(resources.empty());
 }
 
 }  // namespace cc
-
-#endif  // CC_SURFACES_DISPLAY_H_