Only permit plug-in loads in the browser if the plug-in isn't blocked or the

content/browser/plugin_service_impl.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.
 
 // This class responds to requests from renderers for the list of plugins, and
 // also a proxy object for plugin instances.
 
 #ifndef CONTENT_BROWSER_PLUGIN_SERVICE_IMPL_H_
 #define CONTENT_BROWSER_PLUGIN_SERVICE_IMPL_H_
 
@@ skipping 102 matching lines @@
       webkit::npapi::PluginList* plugin_list) OVERRIDE;
 #if defined(OS_MACOSX)
   virtual void AppActivated() OVERRIDE;
 #endif
 
   // Returns the plugin process host corresponding to the plugin process that
   // has been started by this service. This will start a process to host the
   // 'plugin_path' if needed. If the process fails to start, the return value
   // is NULL. Must be called on the IO thread.
   PluginProcessHost* FindOrStartNpapiPluginProcess(
-      const FilePath& plugin_path);
+      int render_process_id, const FilePath& plugin_path);
   PpapiPluginProcessHost* FindOrStartPpapiPluginProcess(
+      int render_process_id,
       const FilePath& plugin_path,
       const FilePath& profile_data_directory,
       PpapiPluginProcessHost::PluginClient* client);
   PpapiPluginProcessHost* FindOrStartPpapiBrokerProcess(
-      const FilePath& plugin_path);
+      int render_process_id, const FilePath& plugin_path);
 
   // Opens a channel to a plugin process for the given mime type, starting
   // a new plugin process if necessary.  This must be called on the IO thread
   // or else a deadlock can occur.
   void OpenChannelToNpapiPlugin(int render_process_id,
                                 int render_view_id,
                                 const GURL& url,
                                 const GURL& page_url,
                                 const std::string& mime_type,
                                 PluginProcessHost::Client* client);
-  void OpenChannelToPpapiPlugin(const FilePath& plugin_path,
+  void OpenChannelToPpapiPlugin(int render_process_id,
+                                const FilePath& plugin_path,
                                 const FilePath& profile_data_directory,
                                 PpapiPluginProcessHost::PluginClient* client);
-  void OpenChannelToPpapiBroker(const FilePath& path,
+  void OpenChannelToPpapiBroker(int render_process_id,
+                                const FilePath& path,
                                 PpapiPluginProcessHost::BrokerClient* client);
 
   // Cancels opening a channel to a NPAPI plugin.
   void CancelOpenChannelToNpapiPlugin(PluginProcessHost::Client* client);
 
   // Used to monitor plug-in stability.
   void RegisterPluginCrash(const FilePath& plugin_path);
 
  private:
   friend struct DefaultSingletonTraits<PluginServiceImpl>;
@@ skipping 35 matching lines @@
       int render_process_id,
       int render_view_id,
       const GURL& url,
       const GURL& page_url,
       const std::string& mime_type,
       PluginProcessHost::Client* client,
       ResourceContext* resource_context);
 
   // Helper so we can finish opening the channel after looking up the
   // plugin.
-  void FinishOpenChannelToPlugin(const FilePath& plugin_path,
+  void FinishOpenChannelToPlugin(int render_process_id,
+                                 const FilePath& plugin_path,
                                  PluginProcessHost::Client* client);
 
 #if defined(OS_POSIX) && !defined(OS_OPENBSD) && !defined(OS_ANDROID)
   // Registers a new FilePathWatcher for a given path.
   static void RegisterFilePathWatcher(base::FilePathWatcher* watcher,
                                       const FilePath& path);
 #endif
 
   // The plugin list instance.
   webkit::npapi::PluginList* plugin_list_;
@@ skipping 28 matching lines @@
 
   // Used to detect if a given plug-in is crashing over and over.
   std::map<FilePath, std::vector<base::Time> > crash_times_;
 
   DISALLOW_COPY_AND_ASSIGN(PluginServiceImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_PLUGIN_SERVICE_IMPL_H_