Add gpu_memory_usage to Tile::AsValue

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/debug/trace_event_argument.h"
 #include "cc/base/math_util.h"
@@ skipping 69 matching lines @@
 
   res->BeginDictionary("pending_priority");
   priority_[PENDING_TREE].AsValueInto(res);
   res->EndDictionary();
 
   res->BeginDictionary("managed_state");
   managed_state_.AsValueInto(res);
   res->EndDictionary();
 
   res->SetBoolean("use_picture_analysis", use_picture_analysis());
+
+  res->SetInteger("gpu_memory_usage", GPUMemoryUsageInBytes());
 }
 
 size_t Tile::GPUMemoryUsageInBytes() const {
   size_t total_size = 0;
   for (int mode = 0; mode < NUM_RASTER_MODES; ++mode)
     total_size += managed_state_.tile_versions[mode].GPUMemoryUsageInBytes();
   return total_size;
 }
 
 RasterMode Tile::DetermineRasterModeForTree(WhichTree tree) const {
@@ skipping 15 matching lines @@
 
 bool Tile::HasRasterTask() const {
   for (int mode = 0; mode < NUM_RASTER_MODES; ++mode) {
     if (managed_state_.tile_versions[mode].raster_task_)
       return true;
   }
   return false;
 }
 
 }  // namespace cc