Remove unused references to included header files

cc/resources/tile.cc

 // Copyright 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 "cc/resources/tile.h"
 
 #include <algorithm>
 
 #include "base/trace_event/trace_event_argument.h"
 #include "cc/base/math_util.h"
 #include "cc/debug/traced_value.h"
 #include "cc/resources/tile_manager.h"
-#include "third_party/khronos/GLES2/gl2.h"
 
 namespace cc {
 
 Tile::Id Tile::s_next_id_ = 0;
 
 Tile::Tile(TileManager* tile_manager,
            RasterSource* raster_source,
            const gfx::Size& desired_texture_size,
            const gfx::Rect& content_rect,
            float contents_scale,
@@ skipping 59 matching lines @@
   res->SetInteger("gpu_memory_usage", GPUMemoryUsageInBytes());
 }
 
 size_t Tile::GPUMemoryUsageInBytes() const {
   if (draw_info_.resource_)
     return draw_info_.resource_->bytes();
   return 0;
 }
 
 }  // namespace cc