Move forwardInputEvent from RenderFrame to RenderFrameProxy.

content/renderer/render_frame_impl.cc

Index: content/renderer/render_frame_impl.cc
diff --git a/content/renderer/render_frame_impl.cc b/content/renderer/render_frame_impl.cc
index a87e43d5016386c20c131266fbc7299d9662074b..3366ea0deb4936eec6a804dcdfe4e0b24649f9df 100644
--- a/content/renderer/render_frame_impl.cc
+++ b/content/renderer/render_frame_impl.cc
@@ -3161,10 +3161,6 @@ void RenderFrameImpl::didLoseWebGLContext(blink::WebLocalFrame* frame,
       arb_robustness_status_code));
 }
 
-void RenderFrameImpl::forwardInputEvent(const blink::WebInputEvent* event) {
-  Send(new FrameHostMsg_ForwardInputEvent(routing_id_, event));
-}
-
 blink::WebScreenOrientationClient*
     RenderFrameImpl::webScreenOrientationClient() {
   if (!screen_orientation_dispatcher_)