exo: Fix multi-display hardware cursor

components/exo/wm_helper_mus.cc

Index: components/exo/wm_helper_mus.cc
diff --git a/components/exo/wm_helper_mus.cc b/components/exo/wm_helper_mus.cc
index 07a60cfdce72879f5ee56a4801bd15992107325b..3393a3b9cbbfb21f176cf4241b7a507ccdb8266f 100644
--- a/components/exo/wm_helper_mus.cc
+++ b/components/exo/wm_helper_mus.cc
@@ -36,7 +36,7 @@ const display::ManagedDisplayInfo WMHelperMus::GetDisplayInfo(
   return display::ManagedDisplayInfo(display_id, "", false);
 }
 
-aura::Window* WMHelperMus::GetContainer(int container_id) {
+aura::Window* WMHelperMus::GetContainer(int64_t display_id, int container_id) {
   NOTIMPLEMENTED();
   return nullptr;
 }
@@ -88,6 +88,10 @@ void WMHelperMus::PlayEarcon(int sound_key) const {
   NOTIMPLEMENTED();
 }
 
+void WMHelperMus::SetCursor(gfx::NativeCursor cursor) {
+  NOTIMPLEMENTED();
+}
+
 void WMHelperMus::OnWindowInitialized(aura::Window* window) {}
 
 void WMHelperMus::OnActiveFocusClientChanged(