Oilpan: Prepare moving InspectorController and InspectorAgents to oilpan.

Source/modules/filesystem/InspectorFileSystemAgent.h

Index: Source/modules/filesystem/InspectorFileSystemAgent.h
diff --git a/Source/modules/filesystem/InspectorFileSystemAgent.h b/Source/modules/filesystem/InspectorFileSystemAgent.h
index 26f9a0cd5acde6280917e333136af220efecbc8d..2f4b5962e7a5c17009d9d16c32185643238bc964 100644
--- a/Source/modules/filesystem/InspectorFileSystemAgent.h
+++ b/Source/modules/filesystem/InspectorFileSystemAgent.h
@@ -43,8 +43,9 @@ class SecurityOrigin;
 
 class InspectorFileSystemAgent FINAL : public InspectorBaseAgent<InspectorFileSystemAgent>, public InspectorBackendDispatcher::FileSystemCommandHandler {
 public:
-    static PassOwnPtr<InspectorFileSystemAgent> create(Page*);
+    static PassOwnPtrWillBeRawPtr<InspectorFileSystemAgent> create(Page*);
     virtual ~InspectorFileSystemAgent();
+    virtual void trace(Visitor*) OVERRIDE;
 
     virtual void enable(ErrorString*) OVERRIDE;
     virtual void disable(ErrorString*) OVERRIDE;
@@ -59,11 +60,11 @@ public:
     virtual void restore() OVERRIDE;
 
 private:
-    InspectorFileSystemAgent(Page*);
+    explicit InspectorFileSystemAgent(Page*);
     bool assertEnabled(ErrorString*);
     ExecutionContext* assertExecutionContextForOrigin(ErrorString*, SecurityOrigin*);
 
-    Page* m_page;
+    RawPtrWillBeMember<Page> m_page;
     bool m_enabled;
 };