Reland of Getting rid of CompositorFrameMetadata::satisfies_sequences

cc/surfaces/surface_manager.cc

Index: cc/surfaces/surface_manager.cc
diff --git a/cc/surfaces/surface_manager.cc b/cc/surfaces/surface_manager.cc
index 7c716d0eeb0c975b6ac7ed43e81412252967ca0d..a6a01ed50ebc78b770fce7f26a0bd4006ecc8750 100644
--- a/cc/surfaces/surface_manager.cc
+++ b/cc/surfaces/surface_manager.cc
@@ -31,7 +31,8 @@
 SurfaceManager::SurfaceManager(LifetimeType lifetime_type)
     : lifetime_type_(lifetime_type),
       root_surface_id_(FrameSinkId(0u, 0u),
-                       LocalFrameId(1u, base::UnguessableToken::Create())) {
+                       LocalFrameId(1u, base::UnguessableToken::Create())),
+      weak_factory_(this) {
   thread_checker_.DetachFromThread();
 }
 
@@ -499,4 +500,8 @@
     observer.OnSurfaceCreated(surface_id, frame_size, device_scale_factor);
 }
 
+base::WeakPtr<SurfaceManager> SurfaceManager::GetWeakPtr() {
+  return weak_factory_.GetWeakPtr();
+}
+
 }  // namespace cc