Fix painting problem with transparent plugins because plugins were ignoring t...

webkit/glue/plugins/plugin_instance.h

 // Copyright (c) 2006-2008 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.
 
 // TODO: Need to deal with NPAPI's NPSavedData.  
 //       I haven't seen plugins use it yet.
 
 #ifndef WEBKIT_GLUE_PLUGIN_PLUGIN_INSTANCE_H__
 #define WEBKIT_GLUE_PLUGIN_PLUGIN_INSTANCE_H__
 
@@ skipping 124 matching lines @@
   virtual void DidFinishLoadWithReason(NPReason reason);
 
   // Helper method to set some persistent data for getURLNotify since
   // resource fetches happen async.
   void SetURLLoadData(const GURL& url, void* notify_data);
 
   // If true, send the Mozilla user agent instead of Chrome's to the plugin.
   bool use_mozilla_user_agent() { return use_mozilla_user_agent_; }
   void set_use_mozilla_user_agent() { use_mozilla_user_agent_ = true; }
 
-  bool throttle_invalidate() const { return throttle_invalidate_; }
-  void set_throttle_invalidate(bool throttle_invalidate) {
-    throttle_invalidate_ = throttle_invalidate;
-  }
-
   // Helper that implements NPN_PluginThreadAsyncCall semantics
   void PluginThreadAsyncCall(void (*func)(void *),
                              void *userData);
 
   //
   // NPAPI methods for calling the Plugin Instance
   //
   NPError NPP_New(unsigned short, short, char *[], char *[]);
   NPError NPP_SetWindow(NPWindow *);
   NPError NPP_NewStream(NPMIMEType, NPStream *, NPBool, unsigned short *);
@@ skipping 81 matching lines @@
   // (MozillaExtensionApi) created as a result of NPN_GetValue
   // in the context of NP_Initialize. 
   static ThreadLocalStorage::Slot          plugin_instance_tls_index_;
   scoped_refptr<PluginStreamUrl>           plugin_data_stream_;
   GURL                                     instance_url_;
 
   // This flag if true indicates that the plugin data would be passed from
   // webkit. if false indicates that the plugin should download the data.
   bool                                     load_manually_;
 
-  // This flag indicates if the NPN_InvalidateRect calls made by the
-  // plugin need to be throttled.
-  bool                                     throttle_invalidate_;
-
   // Stack indicating if popups are to be enabled for the outgoing
   // NPN_GetURL/NPN_GetURLNotify calls.
   std::stack<bool>                         popups_enabled_stack_;
 
   // True if in CloseStreams().
   bool in_close_streams_;
 
   DISALLOW_EVIL_CONSTRUCTORS(PluginInstance);
 };
 
 } // namespace NPAPI
 
 #endif  // WEBKIT_GLUE_PLUGIN_PLUGIN_INSTANCE_H__