[Oilpan] Prepare full definition of classes before using Member

third_party/WebKit/Source/core/frame/Location.cpp

Index: third_party/WebKit/Source/core/frame/Location.cpp
diff --git a/third_party/WebKit/Source/core/frame/Location.cpp b/third_party/WebKit/Source/core/frame/Location.cpp
index e0922ef92ef2dfbaca7008e65bd3354ea743e91d..df159f05576acf90eec56d9a0dd2c856fced11c1 100644
--- a/third_party/WebKit/Source/core/frame/Location.cpp
+++ b/third_party/WebKit/Source/core/frame/Location.cpp
@@ -52,6 +52,16 @@ DEFINE_TRACE(Location)
     visitor->trace(m_frame);
 }
 
+Frame* Location::frame() const
+{
+    return m_frame.get();
+}
+
+void Location::reset()
+{
+    m_frame = nullptr;
+}
+
 inline const KURL& Location::url() const
 {
     const KURL& url = toLocalFrame(m_frame)->document()->url();