Oilpan: Prepare moving AsyncCallChain to Oilpan

Source/web/InspectorFrontendClientImpl.h

 /*
  * Copyright (C) 2010 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 14 matching lines @@
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef InspectorFrontendClientImpl_h
 #define InspectorFrontendClientImpl_h
 
 #include "core/inspector/InspectorFrontendClient.h"
+#include "platform/heap/Handle.h"
 #include "wtf/Noncopyable.h"
 
 namespace blink {
 class InspectorFrontendHost;
 class Page;
 }
 
 namespace blink {
 
 class WebDevToolsFrontendClient;
@@ skipping 19 matching lines @@
 
 private:
     RawPtrWillBeMember<blink::Page> m_frontendPage;
     WebDevToolsFrontendClient* m_client;
     RefPtrWillBeMember<blink::InspectorFrontendHost> m_frontendHost;
 };
 
 } // namespace blink
 
 #endif