Oilpan: Prepare moving InspectorFrontendHost to Oilpan

Source/core/inspector/InspectorFrontendHost.h

Index: Source/core/inspector/InspectorFrontendHost.h
diff --git a/Source/core/inspector/InspectorFrontendHost.h b/Source/core/inspector/InspectorFrontendHost.h
index e59a858245d77b5d8fc3af604c4c00de8a48803c..e85cd1a18465f4d0207c7d1def8815859dfe81ba 100644
--- a/Source/core/inspector/InspectorFrontendHost.h
+++ b/Source/core/inspector/InspectorFrontendHost.h
@@ -42,14 +42,15 @@ class FrontendMenuProvider;
 class InspectorFrontendClient;
 class Page;
 
-class InspectorFrontendHost : public RefCounted<InspectorFrontendHost>, public ScriptWrappable {
+class InspectorFrontendHost : public RefCountedWillBeGarbageCollectedFinalized<InspectorFrontendHost>, public ScriptWrappable {
 public:
-    static PassRefPtr<InspectorFrontendHost> create(InspectorFrontendClient* client, Page* frontendPage)
+    static PassRefPtrWillBeRawPtr<InspectorFrontendHost> create(InspectorFrontendClient* client, Page* frontendPage)
     {
-        return adoptRef(new InspectorFrontendHost(client, frontendPage));
+        return adoptRefWillBeNoop(new InspectorFrontendHost(client, frontendPage));
     }
 
     ~InspectorFrontendHost();
+    void trace(Visitor*);
     void disconnectClient();
 
     void setZoomFactor(float);
@@ -78,7 +79,7 @@ private:
     InspectorFrontendHost(InspectorFrontendClient* client, Page* frontendPage);
 
     InspectorFrontendClient* m_client;
-    Page* m_frontendPage;
+    RawPtrWillBeMember<Page> m_frontendPage;
     FrontendMenuProvider* m_menuProvider;
 };