Implement the gamepad API in the IPC proxy

content/public/browser/browser_ppapi_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_PUBLIC_BROWSER_BROWSER_PPAPI_HOST_H_
 #define CONTENT_PUBLIC_BROWSER_BROWSER_PPAPI_HOST_H_
 
+#include "base/process.h"
+#include "content/common/content_export.h"
+
 namespace ppapi {
 namespace host {
 class PpapiHost;
 }
 }
 
 namespace content {
 
 // Interface that allows components in the embedder app to talk to the
 // PpapiHost in the browser process.
 //
 // There will be one of these objects in the browser per plugin process. It
 // lives entirely on the I/O thread.
-class BrowserPpapiHost {
+class CONTENT_EXPORT BrowserPpapiHost {
  public:
   // Returns the PpapiHost object.
   virtual ppapi::host::PpapiHost* GetPpapiHost() = 0;
 
+  // Returns the handle to the plugin process.
+  virtual base::ProcessHandle GetPluginProcessHandle() const = 0;
+
  protected:
   virtual ~BrowserPpapiHost() {}
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_BROWSER_PPAPI_HOST_H_