Allow RemoteFrames to be navigated through targeted navigation.

Source/core/frame/Frame.h

Index: Source/core/frame/Frame.h
diff --git a/Source/core/frame/Frame.h b/Source/core/frame/Frame.h
index bccaf64b1edd41d460a508173fbd9aa9b447ea3b..4e21b8fed6d53e85cf02cff8553a88cac3f54e7d 100644
--- a/Source/core/frame/Frame.h
+++ b/Source/core/frame/Frame.h
@@ -52,6 +52,7 @@ class SecurityContext;
 class Settings;
 class WindowProxy;
 class WindowProxyManager;
+struct FrameLoadRequest;
 
 // Status of user gesture.
 enum class UserGestureStatus { Active, None };
@@ -69,6 +70,7 @@ public:
     virtual WindowProxy* windowProxy(DOMWrapperWorld&) = 0;
 
     virtual void navigate(Document& originDocument, const KURL&, bool lockBackForwardList, UserGestureStatus) = 0;
+    virtual void navigate(const FrameLoadRequest&) = 0;
     virtual void reload(ReloadPolicy, ClientRedirectPolicy) = 0;
 
     virtual void detach();