Delete RenderFrameHostImpl::SetHasReceivedUserGesture.

The method is unused. It was introduced in https://codereview.chromium.org/2445193005.

CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_site_isolation

Review-Url: https://codereview.chromium.org/2803163003
Cr-Commit-Position: refs/heads/master@{#463374}

content/browser/frame_host/render_frame_host_impl.cc

@@ -3088,10 +3088,6 @@ void RenderFrameHostImpl::SuppressFurtherDialogs() {
   Send(new FrameMsg_SuppressFurtherDialogs(GetRoutingID()));
 }
 
-void RenderFrameHostImpl::SetHasReceivedUserGesture() {
-  Send(new FrameMsg_SetHasReceivedUserGesture(GetRoutingID()));
-}
-
 void RenderFrameHostImpl::ClearFocusedElement() {
   has_focused_editable_element_ = false;
   Send(new FrameMsg_ClearFocusedElement(GetRoutingID()));

content/browser/frame_host/render_frame_host_impl.h

@@ -609,8 +609,6 @@ class CONTENT_EXPORT RenderFrameHostImpl
   // no longer on the stack when we attempt to swap it out.
   void SuppressFurtherDialogs();
 
-  void SetHasReceivedUserGesture();
-
   void ClearFocusedElement();
 
   // Returns whether the given URL is allowed to commit in the current process.