Add a PepperHelper::EnablePepperSupportForChannel function to content.

chrome/browser/nacl_host/nacl_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 CHROME_BROWSER_NACL_HOST_NACL_PROCESS_HOST_H_
 #define CHROME_BROWSER_NACL_HOST_NACL_PROCESS_HOST_H_
 
 #include "build/build_config.h"
 
 #include "base/file_path.h"
 #include "base/file_util_proxy.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/weak_ptr.h"
 #include "base/message_loop.h"
 #include "base/process.h"
 #include "chrome/common/nacl_types.h"
 #include "content/public/browser/browser_child_process_host_delegate.h"
 #include "googleurl/src/gurl.h"
 #include "ipc/ipc_channel_handle.h"
 
 class ChromeRenderMessageFilter;
 class CommandLine;
 class ExtensionInfoMap;
 
 namespace content {
 class BrowserChildProcessHost;
+class RenderProcessHost;
+class ResourceContext;
 }
 
 namespace IPC {
 class ChannelProxy;
 }
 
 // Represents the browser side of the browser <--> NaCl communication
 // channel. There will be one NaClProcessHost per NaCl process
 // The browser is responsible for starting the NaCl process
 // when requested by the renderer.
@@ skipping 145 matching lines @@
 
   // Channel proxy to terminate the NaCl-Browser PPAPI channel.
   scoped_ptr<IPC::ChannelProxy> ipc_proxy_channel_;
   // Plugin listener, to forward browser channel messages to us.
   PluginListener ipc_plugin_listener_;
 
   DISALLOW_COPY_AND_ASSIGN(NaClProcessHost);
 };
 
 #endif  // CHROME_BROWSER_NACL_HOST_NACL_PROCESS_HOST_H_