Allow Flash (and other plugins) to be installed without restarting the browse...

chrome/renderer/render_thread.h

Index: chrome/renderer/render_thread.h
===================================================================
--- chrome/renderer/render_thread.h	(revision 14070)
+++ chrome/renderer/render_thread.h	(working copy)
@@ -91,6 +91,8 @@
     return user_script_slave_.get();
   }
 
+  bool plugin_refresh_allowed() const { return plugin_refresh_allowed_; }
+
   // Do DNS prefetch resolution of a hostname.
   void Resolve(const char* name, size_t length);
 
@@ -129,6 +131,7 @@
   void OnExtensionHandleMessage(const std::string& message, int channel_id);
   void OnExtensionHandleEvent(const std::string event_name,
       const std::string event_data);
+  void OnPurgePluginListCache();
 
   // Gather usage statistics from the in-memory cache and inform our host.
   // These functions should be call periodically so that the host can make
@@ -157,6 +160,9 @@
 
   scoped_refptr<DevToolsAgentFilter> devtools_agent_filter_;
 
+  // If true, then a GetPlugins call is allowed to rescan the disk.
+  bool plugin_refresh_allowed_;
+
   DISALLOW_COPY_AND_ASSIGN(RenderThread);
 };