cc: More consistent reasoning about display list memory usage.

cc/base/sidecar_list_container.h

 // Copyright 2015 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_BASE_SIDECAR_LIST_CONTAINER_H_
 #define CC_BASE_SIDECAR_LIST_CONTAINER_H_
 
 #include "base/logging.h"
 #include "cc/base/list_container.h"
 
@@ skipping 29 matching lines @@
                                 SidecarDestroyer destroyer)
       : list_(max_size_for_derived_class + max_size_for_sidecar,
               num_of_elements_to_reserve_for),
         destroyer_(destroyer),
         sidecar_offset_(max_size_for_derived_class) {}
   ~SidecarListContainer() { DestroyAllSidecars(); }
 
   // Forward most of the reading logic to ListContainer.
   bool empty() const { return list_.empty(); }
   size_t size() const { return list_.size(); }
+  size_t GetCapacityInBytes() const { return list_.GetCapacityInBytes(); }
   ConstIterator begin() const { return list_.begin(); }
   ConstIterator end() const { return list_.end(); }
 
   template <typename DerivedElementType>
   DerivedElementType* AllocateAndConstruct() {
     return list_.template AllocateAndConstruct<DerivedElementType>();
   }
   template <typename DerivedElementType>
   DerivedElementType* AllocateAndCopyFrom(const DerivedElementType* source) {
     return list_.template AllocateAndCopyFrom<DerivedElementType>(source);
@@ skipping 27 matching lines @@
   }
 
   ListContainer<BaseElementType> list_;
   SidecarDestroyer destroyer_;
   size_t sidecar_offset_;
 };
 
 }  // namespace cc
 
 #endif  // CC_BASE_SIDECAR_LIST_CONTAINER_H_