WIP: Surface Synchronization System

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 94bdac6aceaf9382966fc5dedcc45262303c0837..bd162498471eea734b040236f8e4ad1548a13317 100644
--- a/cc/surfaces/surface_manager.cc
+++ b/cc/surfaces/surface_manager.cc
@@ -80,6 +80,16 @@ std::string SurfaceManager::SurfaceReferencesToString() {
 }
 #endif
 
+void SurfaceManager::SetLockManager(
+    std::unique_ptr<DisplayCompositorLockManager> lock_manager) {
+  lock_manager_ = std::move(lock_manager);
+}
+
+void SurfaceManager::RequestSurfaceResolution(Surface* pending_surface) {
+  if (lock_manager_)
+    lock_manager_->RequestSurfaceResolution(pending_surface);
+}
+
 void SurfaceManager::RegisterSurface(Surface* surface) {
   DCHECK(thread_checker_.CalledOnValidThread());
   DCHECK(surface);
@@ -148,10 +158,10 @@ void SurfaceManager::AddSurfaceReference(const SurfaceId& parent_id,
     DLOG(ERROR) << "No surface in map for " << parent_id.ToString();
     return;
   }
-  if (surface_map_.count(child_id) == 0) {
-    DLOG(ERROR) << "No surface in map for " << child_id.ToString();
-    return;
-  }
+  // if (surface_map_.count(child_id) == 0) {
+  //  DLOG(ERROR) << "No surface in map for " << child_id.ToString();
+  //  return;
+  //}
 
   // There could be a temporary reference to |child_id| which we should now
   // remove because a real reference is being added to it. To find out whether