Add way to mark other Surface a predecessor for a Surface.

cc/surfaces/surface.cc

Index: cc/surfaces/surface.cc
diff --git a/cc/surfaces/surface.cc b/cc/surfaces/surface.cc
index 173218c2e8e8aa349cdee2cd4a6a371e218355bc..73181292cc176e0253e83de0cde55330f40ed5f7 100644
--- a/cc/surfaces/surface.cc
+++ b/cc/surfaces/surface.cc
@@ -24,6 +24,7 @@ static const int kFrameIndexStart = 2;
 
 Surface::Surface(SurfaceId id, SurfaceFactory* factory)
     : surface_id_(id),
+      previous_frame_surface_id_(id),
       factory_(factory->AsWeakPtr()),
       frame_index_(kFrameIndexStart),
       destroyed_(false) {}
@@ -41,6 +42,12 @@ Surface::~Surface() {
     draw_callback_.Run(SurfaceDrawStatus::DRAW_SKIPPED);
 }
 
+void Surface::SetPreviousFrameSurface(Surface* surface) {
+  DCHECK(surface);
+  frame_index_ = surface->frame_index() + 1;
+  previous_frame_surface_id_ = surface->surface_id();
+}
+
 void Surface::QueueFrame(std::unique_ptr<CompositorFrame> frame,
                          const DrawCallback& callback) {
   DCHECK(factory_);
@@ -64,6 +71,8 @@ void Surface::QueueFrame(std::unique_ptr<CompositorFrame> frame,
       !current_frame_->delegated_frame_data->render_pass_list.empty())
     ++frame_index_;
 
+  previous_frame_surface_id_ = surface_id();
+
   std::vector<SurfaceId> new_referenced_surfaces;
   if (current_frame_) {
     new_referenced_surfaces = current_frame_->metadata.referenced_surfaces;