Add temporary reference ownership to SurfaceManager.

cc/surfaces/compositor_frame_sink_support_unittest.cc

Index: cc/surfaces/compositor_frame_sink_support_unittest.cc
diff --git a/cc/surfaces/compositor_frame_sink_support_unittest.cc b/cc/surfaces/compositor_frame_sink_support_unittest.cc
index 7f5342d1538ba4e7eae87348e872df730950017b..79ac731326450ec1345e7611c10491b136934a12 100644
--- a/cc/surfaces/compositor_frame_sink_support_unittest.cc
+++ b/cc/surfaces/compositor_frame_sink_support_unittest.cc
@@ -108,10 +108,9 @@ class CompositorFrameSinkSupportTest : public testing::Test,
     return surface_manager().parent_to_child_refs_[surface_id];
   }
 
-  // Returns all the temporary references for the given frame sink id.
-  std::vector<LocalSurfaceId> GetTempReferences(
-      const FrameSinkId& frame_sink_id) {
-    return surface_manager().temp_references_[frame_sink_id];
+  // Returns true if there is a temporary reference for |surface_id|.
+  bool HasTemporaryReference(const SurfaceId& surface_id) {
+    return surface_manager().HasTemporaryReference(surface_id);
   }
 
   SurfaceDependencyTracker& dependency_tracker() {
@@ -573,7 +572,7 @@ TEST_F(CompositorFrameSinkSupportTest,
 
   // Verify that there is no temporary reference for the child and that
   // the reference from the parent to the child still exists.
-  EXPECT_THAT(GetTempReferences(child_id.frame_sink_id()), IsEmpty());
+  EXPECT_FALSE(HasTemporaryReference(child_id));
   EXPECT_THAT(GetChildReferences(parent_id), UnorderedElementsAre(child_id));
 }
 
@@ -656,7 +655,7 @@ TEST_F(CompositorFrameSinkSupportTest, DropStaleReferencesAfterActivation) {
 
   // Verify that there is no temporary reference for the child and that
   // the reference from the parent to the child still exists.
-  EXPECT_THAT(GetTempReferences(child_id1.frame_sink_id()), IsEmpty());
+  EXPECT_FALSE(HasTemporaryReference(child_id1));
   EXPECT_THAT(GetChildReferences(parent_id), UnorderedElementsAre(child_id1));
 
   // The parent submits another CompositorFrame that depends on |child_id2|.