Convert //cc from scoped_ptr to std::unique_ptr.

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 68d845e69908c41a6825613f8715c682a648119e..6c93c3771df7a268eb3f610eabe736b4a09e01bb 100644
--- a/cc/test/fake_tile_manager_client.h
+++ b/cc/test/fake_tile_manager_client.h
@@ -21,10 +21,10 @@ class FakeTileManagerClient : public TileManagerClient {
   void NotifyReadyToDraw() override {}
   void NotifyAllTileTasksCompleted() override {}
   void NotifyTileStateChanged(const Tile* tile) override {}
-  scoped_ptr<RasterTilePriorityQueue> BuildRasterQueue(
+  std::unique_ptr<RasterTilePriorityQueue> BuildRasterQueue(
       TreePriority tree_priority,
       RasterTilePriorityQueue::Type type) override;
-  scoped_ptr<EvictionTilePriorityQueue> BuildEvictionQueue(
+  std::unique_ptr<EvictionTilePriorityQueue> BuildEvictionQueue(
       TreePriority tree_priority) override;
   void SetIsLikelyToRequireADraw(bool is_likely_to_require_a_draw) override {}
 };