Implement service-side surface synchronization

cc/surfaces/surface_manager.h

 // 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.
 
 #ifndef CC_SURFACES_SURFACE_MANAGER_H_
 #define CC_SURFACES_SURFACE_MANAGER_H_
 
 #include <stdint.h>
 
 #include <list>
 #include <memory>
 #include <unordered_map>
 #include <unordered_set>
 #include <vector>
 
 #include "base/logging.h"
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
 #include "base/observer_list.h"
 #include "base/threading/thread_checker.h"
 #include "cc/surfaces/frame_sink_id.h"
+#include "cc/surfaces/surface_dependency_tracker.h"
 #include "cc/surfaces/surface_id.h"
 #include "cc/surfaces/surface_observer.h"
 #include "cc/surfaces/surface_reference.h"
 #include "cc/surfaces/surface_reference_factory.h"
 #include "cc/surfaces/surface_sequence.h"
 #include "cc/surfaces/surfaces_export.h"
 
 #if DCHECK_IS_ON()
 #include <iosfwd>
 #include <string>
@@ skipping 13 matching lines @@
   };
 
   explicit SurfaceManager(LifetimeType lifetime_type = LifetimeType::SEQUENCES);
   ~SurfaceManager();
 
 #if DCHECK_IS_ON()
   // Returns a string representation of all reachable surface references.
   std::string SurfaceReferencesToString();
 #endif
 
+  void SetDependencyTracker(
+      std::unique_ptr<SurfaceDependencyTracker> dependency_tracker);
+  SurfaceDependencyTracker* dependency_tracker() {
+    return dependency_tracker_.get();
+  }
+
+  void RequestSurfaceResolution(Surface* pending_surface);
+
   void RegisterSurface(Surface* surface);
   void DeregisterSurface(const SurfaceId& surface_id);
 
   // Destroy the Surface once a set of sequence numbers has been satisfied.
   void Destroy(std::unique_ptr<Surface> surface);
 
   Surface* GetSurfaceForId(const SurfaceId& surface_id);
 
   void AddObserver(SurfaceObserver* obs) { observer_list_.AddObserver(obs); }
 
@@ skipping 189 matching lines @@
   scoped_refptr<SurfaceReferenceFactory> reference_factory_;
 
   // SurfaceIds that have temporary references from top level root so they
   // aren't GC'd before a real reference is added. This is basically a
   // collection of surface ids, for example:
   //   SurfaceId surface_id(key, value[index]);
   // The LocalSurfaceIds are stored in the order the surfaces are created in.
   std::unordered_map<FrameSinkId, std::vector<LocalSurfaceId>, FrameSinkIdHash>
       temp_references_;
 
+  std::unique_ptr<SurfaceDependencyTracker> dependency_tracker_;
+
   base::WeakPtrFactory<SurfaceManager> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(SurfaceManager);
 };
 
 }  // namespace cc
 
 #endif  // CC_SURFACES_SURFACE_MANAGER_H_