gpu: Use mojom API for getting video memory usage.

content/browser/gpu/gpu_process_host.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_GPU_GPU_PROCESS_HOST_H_
 #define CONTENT_BROWSER_GPU_GPU_PROCESS_HOST_H_
 
 #include <stdint.h>
 
 #include <map>
@@ skipping 82 matching lines @@
 
   // Helper function to send the given message to the GPU process on the IO
   // thread. Calls Get and if a host is returned, sends it. |force_create| can
   // be set to force the creation of GpuProcessHost if one doesn't already
   // exist. This function can be called from any thread. Deletes the message if
   // it cannot be sent.
   CONTENT_EXPORT static void SendOnIO(GpuProcessKind kind,
                                       bool force_create,
                                       IPC::Message* message);
 
+  // Helper function to run a callback on the IO thread. The callback receives
+  // the appropriate GpuProcessHost instance. If |force_create| is false, and no
+  // GpuProcessHost instance exists, then the callback is never called.
+  static void CallOnIO(GpuProcessKind kind,
+                       bool force_create,
+                       const base::Callback<void(GpuProcessHost*)>& callback);
+
   service_manager::InterfaceProvider* GetRemoteInterfaces();
 
   // Get the GPU process host for the GPU process with the given ID. Returns
   // null if the process no longer exists.
   static GpuProcessHost* FromID(int host_id);
   int host_id() const { return host_id_; }
 
   // IPC::Sender implementation.
   bool Send(IPC::Message* msg) override;
 
@@ skipping 34 matching lines @@
   GpuProcessKind kind();
 
   // Forcefully terminates the GPU process.
   void ForceShutdown();
 
   // Asks the GPU process to stop by itself.
   void StopGpuProcess();
 
   void LoadedShader(const std::string& key, const std::string& data);
 
+  ui::mojom::GpuService* gpu_service() { return gpu_service_ptr_.get(); }
+
  private:
   class ConnectionFilterImpl;
 
   static bool ValidateHost(GpuProcessHost* host);
 
   GpuProcessHost(int host_id, GpuProcessKind kind);
   ~GpuProcessHost() override;
 
   bool Init();
 
@@ skipping 121 matching lines @@
   mojo::Binding<ui::mojom::GpuHost> gpu_host_binding_;
 
   base::WeakPtrFactory<GpuProcessHost> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(GpuProcessHost);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_GPU_GPU_PROCESS_HOST_H_