[HBD] Remove PluginCache and reload plugin list when origin changes

third_party/WebKit/public/platform/Platform.h

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 310 matching lines @@
 
     virtual WebURLError cancelledError(const WebURL&) const { return WebURLError(); }
 
     // Returns true and stores the position of the end of the headers to |*end|
     // if the headers part ends in |bytes[0..size]|. Returns false otherwise.
     virtual bool parseMultipartHeadersFromBody(const char* bytes, size_t /* size */, WebURLResponse*, size_t* end) const { return false; }
 
     // Plugins -------------------------------------------------------------
 
     // If refresh is true, then cached information should not be used to
-    // satisfy this call.
-    virtual void getPluginList(bool refresh, WebPluginListBuilder*) { }
-
+    // satisfy this call. mainFrameOrigin is used by the browser process to
+    // filter plugins from the plugin list based on content settings.
+    virtual void getPluginList(bool refresh, const WebSecurityOrigin& mainFrameOrigin, WebPluginListBuilder*) {}
 
     // Public Suffix List --------------------------------------------------
 
     // May return null on some platforms.
     virtual WebPublicSuffixList* publicSuffixList() { return nullptr; }
 
 
     // Resources -----------------------------------------------------------
 
     // Returns a localized string resource (with substitution parameters).
@@ skipping 234 matching lines @@
 protected:
     Platform();
     virtual ~Platform() { }
 
     WebThread* m_mainThread;
 };
 
 } // namespace blink
 
 #endif