Add ContextMenuSourceType to views::ContextMenuController::ShowContextMenuForView.

ui/views/widget/root_view.cc

Index: ui/views/widget/root_view.cc
diff --git a/ui/views/widget/root_view.cc b/ui/views/widget/root_view.cc
index a82e22c7617e0681c186e2242dcefd1b1b65269f..a7ac92f5627439f586060a985b004c263c81353f 100644
--- a/ui/views/widget/root_view.cc
+++ b/ui/views/widget/root_view.cc
@@ -117,7 +117,8 @@ void RootView::DispatchKeyEvent(ui::KeyEvent* event) {
   // keyboard.
   if (v && v->enabled() && ((event->key_code() == ui::VKEY_APPS) ||
      (event->key_code() == ui::VKEY_F10 && event->IsShiftDown()))) {
-    v->ShowContextMenu(v->GetKeyboardContextMenuLocation(), false);
+    v->ShowContextMenu(v->GetKeyboardContextMenuLocation(),
+                       ui::CONTEXT_MENU_SOURCE_KEYBOARD);
     event->StopPropagation();
     return;
   }