Manage OffscreenCanvasCompositorFrameSink lifetime explicitly

content/browser/renderer_host/render_process_host_impl.h

 // Copyright (c) 2012 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 CONTENT_BROWSER_RENDERER_HOST_RENDER_PROCESS_HOST_IMPL_H_
 #define CONTENT_BROWSER_RENDERER_HOST_RENDER_PROCESS_HOST_IMPL_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <map>
 #include <memory>
 #include <queue>
 #include <string>
 
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/observer_list.h"
 #include "base/process/process.h"
 #include "base/single_thread_task_runner.h"
 #include "base/synchronization/waitable_event.h"
 #include "build/build_config.h"
 #include "content/browser/child_process_launcher.h"
 #include "content/browser/dom_storage/session_storage_namespace_impl.h"
+#include "content/browser/renderer_host/offscreen_canvas_compositor_frame_sink_provider_impl.h"
 #include "content/browser/webrtc/webrtc_eventlog_host.h"
 #include "content/common/associated_interfaces.mojom.h"
 #include "content/common/content_export.h"
 #include "content/common/renderer.mojom.h"
 #include "content/public/browser/render_process_host.h"
 #include "content/public/common/service_manager_connection.h"
 #include "ipc/ipc_channel_proxy.h"
 #include "ipc/ipc_platform_file.h"
 #include "media/media_features.h"
 #include "mojo/public/cpp/bindings/associated_binding.h"
@@ skipping 288 matching lines @@
   void GetRoute(
       int32_t routing_id,
       mojom::AssociatedInterfaceProviderAssociatedRequest request) override;
 
   // mojom::AssociatedInterfaceProvider:
   void GetAssociatedInterface(
       const std::string& name,
       mojom::AssociatedInterfaceAssociatedRequest request) override;
 
   void CreateMusGpuRequest(ui::mojom::GpuRequest request);
+  void CreateOffscreenCanvasCompositorFrameSinkProvider(
+      blink::mojom::OffscreenCanvasCompositorFrameSinkProviderRequest request);
   void CreateStoragePartitionService(
       mojo::InterfaceRequest<mojom::StoragePartitionService> request);
 
   // Control message handlers.
   void OnShutdownRequest();
   void SuddenTerminationChanged(bool enabled);
   void OnUserMetricsRecordAction(const std::string& action);
   void OnCloseACK(int old_route_id);
 
   // Generates a command line to be used to spawn a renderer and appends the
@@ skipping 229 matching lines @@
   // Therefore a proper shutdown event to unblock the UI thread is not
   // possible without massive refactoring shutdown code.
   // Luckily Android never performs a clean shutdown. So explicitly
   // ignore this problem.
   base::WaitableEvent never_signaled_;
 #endif
 
   scoped_refptr<ResourceMessageFilter> resource_message_filter_;
   std::unique_ptr<GpuClient, BrowserThread::DeleteOnIOThread> gpu_client_;
 
+  std::unique_ptr<OffscreenCanvasCompositorFrameSinkProviderImpl>
+      offscreen_canvas_provider_;
+
   mojom::RouteProviderAssociatedPtr remote_route_provider_;
   mojom::RendererAssociatedPtr renderer_interface_;
 
   // A WeakPtrFactory which is reset every time Cleanup() runs. Used to vend
   // WeakPtrs which are invalidated any time the RPHI is recycled.
   std::unique_ptr<base::WeakPtrFactory<RenderProcessHostImpl>>
       instance_weak_factory_;
 
   base::WeakPtrFactory<RenderProcessHostImpl> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderProcessHostImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_RENDER_PROCESS_HOST_IMPL_H_