cc: Split RasterTilePriorityQueue into required and all based on type.

cc/test/fake_tile_manager_client.h

Index: cc/test/fake_tile_manager_client.h
diff --git a/cc/test/fake_tile_manager_client.h b/cc/test/fake_tile_manager_client.h
index 843c59ff70de8de0a07625fd6443c025eb3551ab..12727b0b355f20941b79f7766e9ba66016b7e64f 100644
--- a/cc/test/fake_tile_manager_client.h
+++ b/cc/test/fake_tile_manager_client.h
@@ -21,9 +21,9 @@ class FakeTileManagerClient : public TileManagerClient {
   void NotifyReadyToActivate() override {}
   void NotifyReadyToDraw() override {}
   void NotifyTileStateChanged(const Tile* tile) override {}
-  void BuildRasterQueue(RasterTilePriorityQueue* queue,
-                        TreePriority tree_priority,
-                        RasterTilePriorityQueue::Type type) override {}
+  scoped_ptr<RasterTilePriorityQueue> BuildRasterQueue(
+      TreePriority tree_priority,
+      RasterTilePriorityQueue::Type type) override;
   void BuildEvictionQueue(EvictionTilePriorityQueue* queue,
                           TreePriority tree_priority) override {}