Revert of Establish MojoChildConnection from BrowserChildProcessHostImpl

content/browser/ppapi_plugin_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_PPAPI_PLUGIN_PROCESS_HOST_H_
 #define CONTENT_BROWSER_PPAPI_PLUGIN_PROCESS_HOST_H_
 
 #include <stdint.h>
 
 #include <memory>
@@ skipping 159 matching lines @@
   std::queue<Client*> sent_requests_;
 
   // Path to the plugin library.
   base::FilePath plugin_path_;
 
   // Path to the top-level plugin data directory (differs based upon profile).
   base::FilePath profile_data_directory_;
 
   const bool is_broker_;
 
+  // A random token used to identify the child process to Mojo.
+  const std::string mojo_child_token_;
+
   std::unique_ptr<BrowserChildProcessHostImpl> process_;
 
   DISALLOW_COPY_AND_ASSIGN(PpapiPluginProcessHost);
 };
 
 class PpapiPluginProcessHostIterator
     : public BrowserChildProcessHostTypeIterator<
           PpapiPluginProcessHost> {
  public:
   PpapiPluginProcessHostIterator()
       : BrowserChildProcessHostTypeIterator<
           PpapiPluginProcessHost>(PROCESS_TYPE_PPAPI_PLUGIN) {}
 };
 
 class PpapiBrokerProcessHostIterator
     : public BrowserChildProcessHostTypeIterator<
           PpapiPluginProcessHost> {
  public:
   PpapiBrokerProcessHostIterator()
       : BrowserChildProcessHostTypeIterator<
           PpapiPluginProcessHost>(PROCESS_TYPE_PPAPI_BROKER) {}
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_PPAPI_PLUGIN_PROCESS_HOST_H_