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

third_party/WebKit/Source/core/page/Page.cpp

 /*
  * Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 Apple Inc. All Rights Reserved.
  * Copyright (C) 2008 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 227 matching lines @@
 
     for (const Page* page : allPages()) {
         // Clear out the page's plugin data.
         if (page->m_pluginData)
             page->m_pluginData = nullptr;
     }
 }
 
 PluginData* Page::pluginData() const
 {
-    if (!m_pluginData)
-        m_pluginData = PluginData::create(this);
+    RefPtr<SecurityOrigin> mainFrameOrigin = mainFrame()->securityContext()->getSecurityOrigin();
+
+    if (!m_pluginData || !mainFrameOrigin->isSameSchemeHostPort(m_pluginData->origin()))
+        m_pluginData = PluginData::create(mainFrameOrigin);
     return m_pluginData.get();
 }
 
 void Page::setValidationMessageClient(ValidationMessageClient* client)
 {
     m_validationMessageClient = client;
 }
 
 void Page::setDefersLoading(bool defers)
 {
@@ skipping 291 matching lines @@
 {
 }
 
 Page::PageClients::~PageClients()
 {
 }
 
 template class CORE_TEMPLATE_EXPORT Supplement<Page>;
 
 } // namespace blink