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

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

Index: third_party/WebKit/Source/modules/plugins/DOMMimeTypeArray.cpp
diff --git a/third_party/WebKit/Source/modules/plugins/DOMMimeTypeArray.cpp b/third_party/WebKit/Source/modules/plugins/DOMMimeTypeArray.cpp
index 86f6be51253945299dffe89a67b6c8ef298b8b9e..3f63a193b05356e37d956d9a43fc918b919f9cf3 100644
--- a/third_party/WebKit/Source/modules/plugins/DOMMimeTypeArray.cpp
+++ b/third_party/WebKit/Source/modules/plugins/DOMMimeTypeArray.cpp
@@ -45,20 +45,20 @@ DOMMimeType* DOMMimeTypeArray::item(unsigned index) {
   PluginData* data = GetPluginData();
   if (!data)
     return nullptr;
-  const Vector<MimeClassInfo>& mimes = data->Mimes();
+  const HeapVector<Member<MimeClassInfo>>& mimes = data->Mimes();
   if (index >= mimes.size())
     return nullptr;
-  return DOMMimeType::Create(data, GetFrame(), index);
+  return DOMMimeType::Create(GetFrame(), mimes[index]);
 }
 
 DOMMimeType* DOMMimeTypeArray::namedItem(const AtomicString& property_name) {
   PluginData* data = GetPluginData();
   if (!data)
     return nullptr;
-  const Vector<MimeClassInfo>& mimes = data->Mimes();
-  for (unsigned i = 0; i < mimes.size(); ++i) {
-    if (mimes[i].type == property_name)
-      return DOMMimeType::Create(data, GetFrame(), i);
+  const HeapVector<Member<MimeClassInfo>>& mimes = data->Mimes();

[tkent, 2017/05/25 00:10:32]

The local variable |mimes| isn't necessary.

for (const auto& mime : data->Mimes()) {

[lfg, 2017/05/25 01:42:40]

Done.

+  for (const MimeClassInfo* mime : mimes) {
+    if (mime->type() == property_name)
+      return DOMMimeType::Create(GetFrame(), mime);
   }
   return nullptr;
 }