[Oilpan] Prepare full definition of classes before using Member

third_party/WebKit/Source/web/WebRemoteFrameImpl.cpp

Index: third_party/WebKit/Source/web/WebRemoteFrameImpl.cpp
diff --git a/third_party/WebKit/Source/web/WebRemoteFrameImpl.cpp b/third_party/WebKit/Source/web/WebRemoteFrameImpl.cpp
index a9190ea63afda8f74711d439d1790bb68597b112..04b275b307c0a21a8ea992cd09f509684d7f3340 100644
--- a/third_party/WebKit/Source/web/WebRemoteFrameImpl.cpp
+++ b/third_party/WebKit/Source/web/WebRemoteFrameImpl.cpp
@@ -749,6 +749,11 @@ void WebRemoteFrameImpl::setCoreFrame(PassRefPtrWillBeRawPtr<RemoteFrame> frame)
     m_frame = frame;
 }
 
+RemoteFrame* WebRemoteFrameImpl::frame() const
+{
+    return m_frame.get();
+}
+
 WebRemoteFrameImpl* WebRemoteFrameImpl::fromFrame(RemoteFrame& frame)
 {
     if (!frame.client())