Oilpan: fix build after r192077.

Source/web/WebLocalFrameImpl.cpp

Index: Source/web/WebLocalFrameImpl.cpp
diff --git a/Source/web/WebLocalFrameImpl.cpp b/Source/web/WebLocalFrameImpl.cpp
index dcac2b12a6f5d9dc8aa7464cdbc4c46ac84a4c07..f1cf3d23ce479c32f6dafbfecac3ac435dd9efc1 100644
--- a/Source/web/WebLocalFrameImpl.cpp
+++ b/Source/web/WebLocalFrameImpl.cpp
@@ -565,9 +565,11 @@ private:
     {
     }
 
-    RawPtrWillBeMember<LocalFrame> m_frame;
+    // FIXME: Oilpan: move (Suspendable)Task to the heap, so that
+    // this reference can be traced.
+    LocalFrame* m_frame;
     int m_worldID;
-    WillBeHeapVector<ScriptSourceCode> m_sources;
+    WillBePersistentHeapVector<ScriptSourceCode> m_sources;
     int m_extensionGroup;
     bool m_userGesture;
     WebScriptExecutionCallback* m_callback;