Cache the mimeTypes and plugins DOM objects.

third_party/WebKit/Source/modules/plugins/DOMPlugin.cpp

 /*
  *  Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
  *
  *  This library is free software; you can redistribute it and/or
  *  modify it under the terms of the GNU Lesser 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
  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  *  Lesser General Public License for more details.
  *
  *  You should have received a copy of the GNU Lesser General Public
  *  License along with this library; if not, write to the Free Software
  *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
  */
 
 #include "modules/plugins/DOMPlugin.h"
 
+#include "core/frame/LocalDOMWindow.h"
+#include "modules/plugins/DOMMimeTypeArray.h"
+#include "modules/plugins/NavigatorPlugins.h"
 #include "platform/plugins/PluginData.h"
+
 #include "wtf/text/AtomicString.h"
 
 namespace blink {
 
 DOMPlugin::DOMPlugin(PluginData* pluginData, LocalFrame* frame, unsigned index)
     : DOMWindowProperty(frame)
     , m_pluginData(pluginData)
     , m_index(index)
 {
 }
@@ skipping 30 matching lines @@
 DOMMimeType* DOMPlugin::item(unsigned index)
 {
     if (index >= pluginInfo().mimes.size())
         return nullptr;
 
     const MimeClassInfo& mime = pluginInfo().mimes[index];
 
     const Vector<MimeClassInfo>& mimes = m_pluginData->mimes();
     for (unsigned i = 0; i < mimes.size(); ++i) {
         if (mimes[i] == mime && m_pluginData->mimePluginIndices()[i] == m_index)
-            return DOMMimeType::create(m_pluginData.get(), frame(), i);
+            return NavigatorPlugins::mimeTypes(*frame()->domWindow()->navigator())->getMimeType(i);
     }
     return nullptr;
 }
 
 DOMMimeType* DOMPlugin::namedItem(const AtomicString& propertyName)
 {
     const Vector<MimeClassInfo>& mimes = m_pluginData->mimes();
     for (unsigned i = 0; i < mimes.size(); ++i) {
         if (mimes[i].type == propertyName)
-            return DOMMimeType::create(m_pluginData.get(), frame(), i);
+            return NavigatorPlugins::mimeTypes(*frame()->domWindow()->navigator())->getMimeType(i);
     }
     return nullptr;
 }
 
 } // namespace blink