cc: Remove unused_memory_limit_in_bytes field from GlobalStateThatImpactsTilePriority.

cc/resources/tile_priority.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_priority.h"
 
 #include "base/values.h"
 #include "cc/base/math_util.h"
 
 namespace cc {
@@ skipping 88 matching lines @@
   return scoped_ptr<base::Value>(new base::StringValue(
       "<unknown>"));
 }
 
 scoped_ptr<base::Value> GlobalStateThatImpactsTilePriority::AsValue() const {
   scoped_ptr<base::DictionaryValue> state(new base::DictionaryValue());
   state->Set("memory_limit_policy",
              TileMemoryLimitPolicyAsValue(memory_limit_policy).release());
   state->SetInteger("soft_memory_limit_in_bytes", soft_memory_limit_in_bytes);
   state->SetInteger("hard_memory_limit_in_bytes", hard_memory_limit_in_bytes);
-  state->SetInteger("unused_memory_limit_in_bytes",
-                    unused_memory_limit_in_bytes);
   state->SetInteger("num_resources_limit", num_resources_limit);
   state->Set("tree_priority", TreePriorityAsValue(tree_priority).release());
   return state.PassAs<base::Value>();
 }
 
 }  // namespace cc