Cache the mimeTypes and plugins DOM objects.

third_party/WebKit/Source/platform/plugins/PluginData.cpp

 /*
     Copyright (C) 2000 Harri Porten (porten@kde.org)
     Copyright (C) 2000 Daniel Molkentin (molkentin@kde.org)
     Copyright (C) 2000 Stefan Schimanski (schimmi@kde.org)
     Copyright (C) 2003, 2004, 2005, 2006, 2007 Apple Inc. All Rights Reserved.
     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 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
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     Library General Public License for more details.
 
     You should have received a copy of the GNU Library General Public License
     along with this library; see the file COPYING.LIB.  If not, write to
     the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
     Boston, MA 02110-1301, USA.
 */
 
 #include "platform/plugins/PluginData.h"
 
 #include "platform/plugins/PluginListBuilder.h"
 #include "public/platform/Platform.h"
+#include "wtf/CurrentTime.h"
 
 namespace blink {
 
 class PluginCache {
 public:
     PluginCache() : m_loaded(false), m_refresh(false) { }
     ~PluginCache() { reset(false); }
 
     void reset(bool refresh)
     {
@@ skipping 19 matching lines @@
     bool m_refresh;
 };
 
 static PluginCache& pluginCache()
 {
     DEFINE_STATIC_LOCAL(PluginCache, cache, ());
     return cache;
 }
 
 PluginData::PluginData(const Page* page)
+    : m_modified(WTF::currentTime())
 {
     initPlugins(page);
 
     for (unsigned i = 0; i < m_plugins.size(); ++i) {
         const PluginInfo& plugin = m_plugins[i];
         for (unsigned j = 0; j < plugin.mimes.size(); ++j) {
             m_mimes.append(plugin.mimes[j]);
             m_mimePluginIndices.append(i);
         }
     }
@@ skipping 33 matching lines @@
         m_plugins.append(plugins[i]);
 }
 
 void PluginData::refresh()
 {
     pluginCache().reset(true);
     pluginCache().plugins(); // Force the plugins to be reloaded now.
 }
 
 } // namespace blink