Enqueuing new frames in a Surface should cause Displays to reaggregate it

cc/surfaces/surface_aggregator.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "cc/surfaces/surface_aggregator.h"
 
 #include "base/bind.h"
 #include "base/containers/hash_tables.h"
 #include "base/debug/trace_event.h"
 #include "base/logging.h"
@@ skipping 124 matching lines @@
 void SurfaceAggregator::HandleSurfaceQuad(const SurfaceDrawQuad* surface_quad,
                                           RenderPass* dest_pass) {
   SurfaceId surface_id = surface_quad->surface_id;
   // If this surface's id is already in our referenced set then it creates
   // a cycle in the graph and should be dropped.
   if (referenced_surfaces_.count(surface_id))
     return;
   Surface* surface = manager_->GetSurfaceForId(surface_id);
   if (!surface)
     return;
+  contained_surface_set_->insert(surface);
   const CompositorFrame* frame = surface->GetEligibleFrame();
   if (!frame)
     return;
   const DelegatedFrameData* frame_data = frame->delegated_frame_data.get();
   if (!frame_data)
     return;
 
   RenderPassList render_pass_list;
   bool invalid_frame = TakeResources(surface, frame_data, &render_pass_list);
   if (invalid_frame)
@@ skipping 125 matching lines @@
     CopyQuadsToPass(source.quad_list,
                     source.shared_quad_state_list,
                     gfx::Transform(),
                     copy_pass.get(),
                     surface_id);
 
     dest_pass_list_->push_back(copy_pass.Pass());
   }
 }
 
-scoped_ptr<CompositorFrame> SurfaceAggregator::Aggregate(SurfaceId surface_id) {
+scoped_ptr<CompositorFrame> SurfaceAggregator::Aggregate(
+    SurfaceId surface_id,
+    std::set<Surface*>* contained_surfaces) {
+  contained_surface_set_ = contained_surfaces;
   Surface* surface = manager_->GetSurfaceForId(surface_id);
   DCHECK(surface);
+  contained_surface_set_->insert(surface);
   const CompositorFrame* root_surface_frame = surface->GetEligibleFrame();
   if (!root_surface_frame)
     return scoped_ptr<CompositorFrame>();
   TRACE_EVENT0("cc", "SurfaceAggregator::Aggregate");
 
   scoped_ptr<CompositorFrame> frame(new CompositorFrame);
   frame->delegated_frame_data = make_scoped_ptr(new DelegatedFrameData);
 
   DCHECK(root_surface_frame->delegated_frame_data);
 
@@ skipping 17 matching lines @@
 
   dest_pass_list_ = NULL;
 
   // TODO(jamesr): Aggregate all resource references into the returned frame's
   // resource list.
 
   return frame.Pass();
 }
 
 }  // namespace cc