Oilpan: Move FrameLoaderClient class hierarchy into Oilpan heap.

Source/core/frame/FrameClient.h

Index: Source/core/frame/FrameClient.h
diff --git a/Source/core/frame/FrameClient.h b/Source/core/frame/FrameClient.h
index a6f68b0519caf0bdeaf1ad87bf777e51144a7188..7e25a8e6914dd7175fcd4f046164a9030345e1e0 100644
--- a/Source/core/frame/FrameClient.h
+++ b/Source/core/frame/FrameClient.h
@@ -6,6 +6,7 @@
 #define FrameClient_h
 
 #include "core/CoreExport.h"
+#include "platform/heap/Handle.h"
 
 namespace blink {
 
@@ -15,7 +16,7 @@ class MessageEvent;
 class SecurityOrigin;
 enum class FrameDetachType;
 
-class CORE_EXPORT FrameClient {
+class CORE_EXPORT FrameClient : public NoBaseWillBeGarbageCollectedFinalized<FrameClient> {
 public:
     virtual bool inShadowTree() const = 0;
 
@@ -40,6 +41,8 @@ public:
     virtual bool willCheckAndDispatchMessageEvent(SecurityOrigin* /*target*/, MessageEvent*, LocalFrame* /*sourceFrame*/) const { return false; }
 
     virtual ~FrameClient() { }
+
+    DEFINE_INLINE_VIRTUAL_TRACE() { }
 };
 
 } // namespace blink