Fix JavaScript alerts from frames with oopif on, after a cross-process click.

content/browser/frame_host/render_frame_host_impl.cc

Index: content/browser/frame_host/render_frame_host_impl.cc
diff --git a/content/browser/frame_host/render_frame_host_impl.cc b/content/browser/frame_host/render_frame_host_impl.cc
index a5cf74d73ebffbe4c6804c015ea3992b35e7f7fa..19278ca650b10e1ce3fb26609012fc6c4cc5a854 100644
--- a/content/browser/frame_host/render_frame_host_impl.cc
+++ b/content/browser/frame_host/render_frame_host_impl.cc
@@ -2401,6 +2401,10 @@ void RenderFrameHostImpl::ResetLoadingState() {
   }
 }
 
+void RenderFrameHostImpl::SuppressFurtherDialogs() {
+  Send(new FrameMsg_SuppressFurtherDialogs(GetRoutingID()));
+}
+
 bool RenderFrameHostImpl::IsSameSiteInstance(
     RenderFrameHostImpl* other_render_frame_host) {
   // As a sanity check, make sure the frame belongs to the same BrowserContext.