exo: Fix cursor scale when crossing displays

components/exo/wm_helper_ash.cc

Index: components/exo/wm_helper_ash.cc
diff --git a/components/exo/wm_helper_ash.cc b/components/exo/wm_helper_ash.cc
index 9998ae6634a6979ba645ef8398d41b05989d89df..18f39cc917ed12c404d69921d463fe87ab9520b1 100644
--- a/components/exo/wm_helper_ash.cc
+++ b/components/exo/wm_helper_ash.cc
@@ -129,6 +129,12 @@ void WMHelperAsh::PlayEarcon(int sound_key) const {
   return ash::Shell::Get()->accessibility_delegate()->PlayEarcon(sound_key);
 }
 
+void WMHelperAsh::SetCursor(gfx::NativeCursor cursor) {
+  ash::Shell* shell = ash::Shell::GetInstance();

[oshima, 2017/04/26 22:13:39]

nit ::Get()

+  static_cast<wm::NativeCursorManager*>(shell->native_cursor_manager())
+      ->SetCursor(cursor, shell->cursor_manager());

[oshima, 2017/04/26 22:13:39]

NativeCursorManager is to provide platform impls, so I'd like to avoid exposing
it to client. Just curious, do we need to lock the cursor?

[Dominik Laskowski, 2017/04/27 20:27:20]

Not really. It's mostly for consistency with Ash if the client happens to change
the cursor while dragging.

+}
+
 void WMHelperAsh::OnWindowActivated(
     aura::client::ActivationChangeObserver::ActivationReason reason,
     aura::Window* gained_active,