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

cc/test/fake_layer_tree_host_impl_client.h

Index: cc/test/fake_layer_tree_host_impl_client.h
diff --git a/cc/test/fake_layer_tree_host_impl_client.h b/cc/test/fake_layer_tree_host_impl_client.h
index cf2525baafb6859600ffffb3e591d048b83a962f..9f0f43363d31bb0fb88f0abac596e47ed82d25c7 100644
--- a/cc/test/fake_layer_tree_host_impl_client.h
+++ b/cc/test/fake_layer_tree_host_impl_client.h
@@ -31,7 +31,7 @@ class FakeLayerTreeHostImplClient : public LayerTreeHostImplClient {
   void SetNeedsPrepareTilesOnImplThread() override {}
   void SetVideoNeedsBeginFrames(bool needs_begin_frames) override {}
   void PostAnimationEventsToMainThreadOnImplThread(
-      scoped_ptr<AnimationEvents> events) override;
+      std::unique_ptr<AnimationEvents> events) override;
   bool IsInsideDraw() override;
   void RenewTreePriority() override {}
   void PostDelayedAnimationTaskOnImplThread(const base::Closure& task,
@@ -42,8 +42,8 @@ class FakeLayerTreeHostImplClient : public LayerTreeHostImplClient {
   void DidCompletePageScaleAnimationOnImplThread() override {}
   void OnDrawForOutputSurface(bool resourceless_software_draw) override {}
   void PostFrameTimingEventsOnImplThread(
-      scoped_ptr<FrameTimingTracker::CompositeTimingSet> composite_events,
-      scoped_ptr<FrameTimingTracker::MainFrameTimingSet> main_frame_events)
+      std::unique_ptr<FrameTimingTracker::CompositeTimingSet> composite_events,
+      std::unique_ptr<FrameTimingTracker::MainFrameTimingSet> main_frame_events)
       override {}
 };