Make stream_id internal to StreamTextureHost.

content/renderer/gpu/stream_texture_host_android.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_RENDERER_GPU_STREAM_TEXTURE_HOST_ANDROID_H_
 #define CONTENT_RENDERER_GPU_STREAM_TEXTURE_HOST_ANDROID_H_
 
 #include <stdint.h>
 
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
 #include "gpu/ipc/common/android/surface_texture_peer.h"
 #include "ipc/ipc_listener.h"
 #include "ipc/ipc_message.h"
 
+namespace base {
+class UnguessableToken;
+}
+
 namespace gfx {
 class Size;
 }
 
 namespace gpu {
 class GpuChannelHost;
 }
 
 struct GpuStreamTextureMsg_MatrixChanged_Params;
 
 namespace content {
 
 // Class for handling all the IPC messages between the GPU process and
 // StreamTextureProxy.
 class StreamTextureHost : public IPC::Listener {
  public:
-  explicit StreamTextureHost(scoped_refptr<gpu::GpuChannelHost> channel);
+  explicit StreamTextureHost(scoped_refptr<gpu::GpuChannelHost> channel,
+                             int32_t route_id);
   ~StreamTextureHost() override;
 
   // Listener class that is listening to the stream texture updates. It is
   // implemented by StreamTextureProxyImpl.
   class Listener {
    public:
     virtual void OnFrameAvailable() = 0;
     virtual ~Listener() {}
   };
 
-  bool BindToCurrentThread(int32_t stream_id, Listener* listener);
+  bool BindToCurrentThread(Listener* listener);
 
   // IPC::Channel::Listener implementation:
   bool OnMessageReceived(const IPC::Message& message) override;
   void OnChannelError() override;
 
+  void EstablishPeer(int player_id, int frame_id);
+  void SetStreamTextureSize(const gfx::Size& size);
+  void ForwardStreamTextureForSurfaceRequest(
+      const base::UnguessableToken& request_token);
+
  private:
   // Message handlers:
   void OnFrameAvailable();
 
-  int stream_id_;
+  int32_t route_id_;
   Listener* listener_;
   scoped_refptr<gpu::GpuChannelHost> channel_;
   base::WeakPtrFactory<StreamTextureHost> weak_ptr_factory_;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(StreamTextureHost);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_GPU_STREAM_TEXTURE_HOST_ANDROID_H_