cc: Fix header include guards.

cc/tile_manager.h

 // 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.
 
 #ifndef CC_TILE_MANAGER_H_
 #define CC_TILE_MANAGER_H_
 
 #include <vector>
 
 #include "base/values.h"
 #include "cc/tile_priority.h"
 
 namespace cc {
 
 class Tile;
 class TileVersion;
 class ResourceProvider;
 
 class TileManagerClient {
  public:
   virtual void ScheduleManageTiles() = 0;
 
  protected:
-  ~TileManagerClient() { }
+  virtual ~TileManagerClient() {}
 };
 
 // This class manages tiles, deciding which should get rasterized and which
 // should no longer have any memory assigned to them. Tile objects are "owned"
 // by layers; they automatically register with the manager when they are
 // created, and unregister from the manager when they are deleted.
 class TileManager {
  public:
   TileManager(TileManagerClient* client);
   ~TileManager();
@@ skipping 11 matching lines @@
   friend class Tile;
   void ScheduleManageTiles();
 
   TileManagerClient* client_;
   bool manage_tiles_pending_;
 
   GlobalStateThatImpactsTilePriority global_state_;
   std::vector<TileVersion*> tile_versions_;
 };
 
-}
+}  // namespace cc
 
-#endif
+#endif  // CC_TILE_MANAGER_H_