exo: Recreate Surface resources on context lost.

content/browser/compositor/gpu_process_transport_factory.h

Index: content/browser/compositor/gpu_process_transport_factory.h
diff --git a/content/browser/compositor/gpu_process_transport_factory.h b/content/browser/compositor/gpu_process_transport_factory.h
index b465fa7673bb8a9cf615f90b4bc7d2d3f6248b63..3a5c9acb3c1e4959f2970f5d40f57656c3f2afb4 100644
--- a/content/browser/compositor/gpu_process_transport_factory.h
+++ b/content/browser/compositor/gpu_process_transport_factory.h
@@ -67,13 +67,13 @@ class GpuProcessTransportFactory
   void SetAuthoritativeVSyncInterval(ui::Compositor* compositor,
                                      base::TimeDelta interval) override;
   void SetOutputIsSecure(ui::Compositor* compositor, bool secure) override;
+  void AddObserver(ui::ContextFactoryObserver* observer) override;
+  void RemoveObserver(ui::ContextFactoryObserver* observer) override;
 
   // ImageTransportFactory implementation.
   ui::ContextFactory* GetContextFactory() override;
   cc::SurfaceManager* GetSurfaceManager() override;
   display_compositor::GLHelper* GetGLHelper() override;
-  void AddObserver(ImageTransportFactoryObserver* observer) override;
-  void RemoveObserver(ImageTransportFactoryObserver* observer) override;
 #if defined(OS_MACOSX)
   void SetCompositorSuspendedForRecycle(ui::Compositor* compositor,
                                         bool suspended) override;
@@ -99,7 +99,7 @@ class GpuProcessTransportFactory
   PerCompositorDataMap per_compositor_data_;
   scoped_refptr<ContextProviderCommandBuffer> shared_main_thread_contexts_;
   std::unique_ptr<display_compositor::GLHelper> gl_helper_;
-  base::ObserverList<ImageTransportFactoryObserver> observer_list_;
+  base::ObserverList<ui::ContextFactoryObserver> observer_list_;
   std::unique_ptr<cc::SurfaceManager> surface_manager_;
   uint32_t next_surface_id_namespace_;
   std::unique_ptr<cc::SingleThreadTaskGraphRunner> task_graph_runner_;