Move forwardInputEvent from RenderFrame to RenderFrameProxy.

content/renderer/render_frame_proxy.cc

Index: content/renderer/render_frame_proxy.cc
diff --git a/content/renderer/render_frame_proxy.cc b/content/renderer/render_frame_proxy.cc
index 6e719c1ab31ecf8029184c4cf5ff762cece9eb25..77f7eaac53e347adb6d8da6ee59017b2802741f7 100644
--- a/content/renderer/render_frame_proxy.cc
+++ b/content/renderer/render_frame_proxy.cc
@@ -294,4 +294,8 @@ void RenderFrameProxy::navigate(const blink::WebURLRequest& request,
   Send(new FrameHostMsg_OpenURL(routing_id_, params));
 }
 
+void RenderFrameProxy::forwardInputEvent(const blink::WebInputEvent* event) {
+  Send(new FrameHostMsg_ForwardInputEvent(routing_id_, event));
+}
+
 }  // namespace