Ignore certain messages in plugin broker process if they are not sent by the browser.

content/ppapi_plugin/broker_process_dispatcher.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_PPAPI_PLUGIN_BROKER_PROCESS_DISPATCHER_H_
 #define CONTENT_PPAPI_PLUGIN_BROKER_PROCESS_DISPATCHER_H_
 
 #include <stdint.h>
 
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
 #include "content/child/scoped_child_process_reference.h"
 #include "ppapi/c/ppp.h"
 #include "ppapi/proxy/broker_dispatcher.h"
 #include "ppapi/shared_impl/ppp_flash_browser_operations_shared.h"
 
 namespace content {
 
 // Wrapper around a BrokerDispatcher that provides the necessary integration
 // for plugin process management. This class is to avoid direct dependencies
 // from the PPAPI proxy on the Chrome multiprocess infrastructure.
 class BrokerProcessDispatcher
     : public ppapi::proxy::BrokerSideDispatcher,
       public base::SupportsWeakPtr<BrokerProcessDispatcher> {
  public:
   BrokerProcessDispatcher(PP_GetInterface_Func get_plugin_interface,
-                          PP_ConnectInstance_Func connect_instance);
+                          PP_ConnectInstance_Func connect_instance,
+                          bool peer_is_browser);
   ~BrokerProcessDispatcher() override;
 
   // IPC::Listener overrides.
   bool OnMessageReceived(const IPC::Message& msg) override;
 
   void OnGetPermissionSettingsCompleted(
       uint32_t request_id,
       bool success,
       PP_Flash_BrowserOperations_Permission default_permission,
       const ppapi::FlashSiteSettings& sites);
@@ skipping 43 matching lines @@
                          const ppapi::FlashSiteSettings& sites);
 
   ScopedChildProcessReference process_ref_;
 
   PP_GetInterface_Func get_plugin_interface_;
 
   const PPP_Flash_BrowserOperations_1_3* flash_browser_operations_1_3_;
   const PPP_Flash_BrowserOperations_1_2* flash_browser_operations_1_2_;
   const PPP_Flash_BrowserOperations_1_0* flash_browser_operations_1_0_;
 
+  bool peer_is_browser_;
+
   DISALLOW_COPY_AND_ASSIGN(BrokerProcessDispatcher);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PPAPI_PLUGIN_BROKER_PROCESS_DISPATCHER_H_