Switch cc to std::unordered_*.

cc/trees/layer_tree_host.h

 // Copyright 2011 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_TREES_LAYER_TREE_HOST_H_
 #define CC_TREES_LAYER_TREE_HOST_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <limits>
 #include <set>
 #include <string>
+#include <unordered_map>
 #include <vector>
 
 #include "base/cancelable_callback.h"
-#include "base/containers/hash_tables.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "base/time/time.h"
 #include "cc/animation/animation.h"
 #include "cc/base/cc_export.h"
 #include "cc/debug/frame_timing_tracker.h"
 #include "cc/debug/micro_benchmark.h"
 #include "cc/debug/micro_benchmark_controller.h"
@@ skipping 404 matching lines @@
   bool AnimateLayersRecursive(Layer* current, base::TimeTicks time);
 
   bool IsSingleThreaded() const;
   bool IsThreaded() const;
 
   struct UIResourceClientData {
     UIResourceClient* client;
     gfx::Size size;
   };
 
-  typedef base::hash_map<UIResourceId, UIResourceClientData>
-      UIResourceClientMap;
+  using UIResourceClientMap =
+      std::unordered_map<UIResourceId, UIResourceClientData>;
   UIResourceClientMap ui_resource_client_map_;
   int next_ui_resource_id_;
 
-  typedef std::vector<UIResourceRequest> UIResourceRequestQueue;
+  using UIResourceRequestQueue = std::vector<UIResourceRequest>;
   UIResourceRequestQueue ui_resource_request_queue_;
 
   void CalculateLCDTextMetricsCallback(Layer* layer);
 
   void NotifySwapPromiseMonitorsOfSetNeedsCommit();
 
   void SetPropertyTreesNeedRebuild();
 
   const CompositorMode compositor_mode_;
 
@@ skipping 68 matching lines @@
 
   SharedBitmapManager* shared_bitmap_manager_;
   gpu::GpuMemoryBufferManager* gpu_memory_buffer_manager_;
   TaskGraphRunner* task_graph_runner_;
 
   std::vector<scoped_ptr<SwapPromise>> swap_promise_list_;
   std::set<SwapPromiseMonitor*> swap_promise_monitor_;
 
   PropertyTrees property_trees_;
 
-  typedef base::hash_map<int, Layer*> LayerIdMap;
+  using LayerIdMap = std::unordered_map<int, Layer*>;
   LayerIdMap layer_id_map_;
 
   uint32_t surface_id_namespace_;
   uint32_t next_surface_sequence_;
 
   DISALLOW_COPY_AND_ASSIGN(LayerTreeHost);
 };
 
 }  // namespace cc
 
 #endif  // CC_TREES_LAYER_TREE_HOST_H_