Replacing SurfaceReferenceBase and SequenceSurfaceReference with Closures

cc/layers/surface_layer.cc

Index: cc/layers/surface_layer.cc
diff --git a/cc/layers/surface_layer.cc b/cc/layers/surface_layer.cc
index a849589c08e06194597335fdcbcd03162a267bdd..b66562c87ec297295f6783866ecb07062c366d33 100644
--- a/cc/layers/surface_layer.cc
+++ b/cc/layers/surface_layer.cc
@@ -21,7 +21,7 @@ namespace cc {
 class SatisfySwapPromise : public SwapPromise {
  public:
   SatisfySwapPromise(
-      std::unique_ptr<SurfaceReferenceBase> surface_ref,
+      std::unique_ptr<ScopedSurfaceReferenceBase> surface_ref,
       scoped_refptr<base::SingleThreadTaskRunner> main_task_runner)
       : surface_ref_(std::move(surface_ref)),
         main_task_runner_(std::move(main_task_runner)) {}
@@ -44,7 +44,7 @@ class SatisfySwapPromise : public SwapPromise {
 
   int64_t TraceId() const override { return 0; }
 
-  std::unique_ptr<SurfaceReferenceBase> surface_ref_;
+  std::unique_ptr<ScopedSurfaceReferenceBase> surface_ref_;
   scoped_refptr<base::SingleThreadTaskRunner> main_task_runner_;
 
   DISALLOW_COPY_AND_ASSIGN(SatisfySwapPromise);