Move blink::PluginData, blink::PluginInfo, blink::MimeTypeInfo to oilpan heap.

third_party/WebKit/Source/modules/plugins/DOMMimeType.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/DOMMimeType.h"
 
 #include "core/frame/LocalFrame.h"
 #include "core/loader/FrameLoader.h"
 #include "core/page/Page.h"
 #include "modules/plugins/DOMPlugin.h"
 #include "platform/wtf/text/StringBuilder.h"
 
 namespace blink {
 
-DOMMimeType::DOMMimeType(PassRefPtr<PluginData> plugin_data,
-                         LocalFrame* frame,
-                         unsigned index)
-    : ContextClient(frame),
-      plugin_data_(std::move(plugin_data)),
-      index_(index) {}
+DOMMimeType::DOMMimeType(LocalFrame* frame,
+                         const MimeClassInfo& mime_class_info)
+    : ContextClient(frame), mime_class_info_(&mime_class_info) {}
 
 DOMMimeType::~DOMMimeType() {}
 
 DEFINE_TRACE(DOMMimeType) {
   ContextClient::Trace(visitor);
+  visitor->Trace(mime_class_info_);
 }
 
 const String& DOMMimeType::type() const {
-  return GetMimeClassInfo().type;
+  return mime_class_info_->Type();
 }
 
 String DOMMimeType::suffixes() const {
-  const Vector<String>& extensions = GetMimeClassInfo().extensions;
+  const Vector<String>& extensions = mime_class_info_->Extensions();
 
   StringBuilder builder;
   for (size_t i = 0; i < extensions.size(); ++i) {
     if (i)
       builder.Append(',');
     builder.Append(extensions[i]);
   }
   return builder.ToString();
 }
 
 const String& DOMMimeType::description() const {
-  return GetMimeClassInfo().desc;
+  return mime_class_info_->Description();
 }
 
 DOMPlugin* DOMMimeType::enabledPlugin() const {
   // FIXME: allowPlugins is just a client call. We should not need
   // to bounce through the loader to get there.
   // Something like: frame()->page()->client()->allowPlugins().
   if (!GetFrame() ||
       !GetFrame()->Loader().AllowPlugins(kNotAboutToInstantiatePlugin))
     return nullptr;
 
-  return DOMPlugin::Create(plugin_data_.Get(), GetFrame(),
-                           plugin_data_->MimePluginIndices()[index_]);
+  return DOMPlugin::Create(GetFrame(), *mime_class_info_->Plugin());
 }
 
 }  // namespace blink