Mac: ExternalPopupMenu::close should hide a showing popup menu.

content/browser/renderer_host/render_view_host_impl.cc

Index: content/browser/renderer_host/render_view_host_impl.cc
diff --git a/content/browser/renderer_host/render_view_host_impl.cc b/content/browser/renderer_host/render_view_host_impl.cc
index 0d7e469f1205156ed8f18d0f4e96ac2f68fab84d..cc6cc0bd53f003d6294efc20bbc6d5e85270f328 100644
--- a/content/browser/renderer_host/render_view_host_impl.cc
+++ b/content/browser/renderer_host/render_view_host_impl.cc
@@ -1142,6 +1142,7 @@ bool RenderViewHostImpl::OnMessageReceived(const IPC::Message& msg) {
                         OnCancelDesktopNotification)
 #if defined(OS_MACOSX) || defined(OS_ANDROID)
     IPC_MESSAGE_HANDLER(ViewHostMsg_ShowPopup, OnShowPopup)
+    IPC_MESSAGE_HANDLER(ViewHostMsg_HidePopup, OnHidePopup)
 #endif
     IPC_MESSAGE_HANDLER(ViewHostMsg_RunFileChooser, OnRunFileChooser)
     IPC_MESSAGE_HANDLER(ViewHostMsg_DidAccessInitialDocument,
@@ -1896,6 +1897,12 @@ void RenderViewHostImpl::OnShowPopup(
                         params.allow_multiple_selection);
   }
 }
+
+void RenderViewHostImpl::OnHidePopup() {
+  RenderViewHostDelegateView* view = delegate_->GetDelegateView();
+  if (view)
+    view->HidePopupMenu();
+}
 #endif
 
 void RenderViewHostImpl::SetState(RenderViewHostImplState rvh_state) {