Allow plugins to participate in Chrome context menus.

content/browser/renderer_host/render_view_host.h

Index: content/browser/renderer_host/render_view_host.h
===================================================================
--- content/browser/renderer_host/render_view_host.h	(revision 114593)
+++ content/browser/renderer_host/render_view_host.h	(working copy)
@@ -73,8 +73,9 @@
 }  // namespace webkit_glue
 
 namespace WebKit {
+struct WebFindOptions;
 struct WebMediaPlayerAction;
-struct WebFindOptions;
+struct WebPluginAction;
 }  // namespace WebKit
 
 // NotificationObserver used to listen for EXECUTE_JAVASCRIPT_RESULT
@@ -465,6 +466,9 @@
   void ExecuteMediaPlayerActionAtLocation(
       const gfx::Point& location, const WebKit::WebMediaPlayerAction& action);
 
+  // Tells the renderer to perform the given action on the plugin.
+  void ExecutePluginAction(const WebKit::WebPluginAction& action);
+
   // Sent to the renderer when a popup window should no longer count against
   // the current popup count (either because it's not a popup or because it was
   // a generated by a user action).