Move GetCursor() method from WindowDelegate to its own delegate interface CursorDelegate.

ui/views/widget/native_widget_aura.cc

Index: ui/views/widget/native_widget_aura.cc
diff --git a/ui/views/widget/native_widget_aura.cc b/ui/views/widget/native_widget_aura.cc
index 4463e6a1d30d58ed3da2fa7f7def392b0fdcaceb..5b102b253e37a4ab3e6d68a063524930ac4391c4 100644
--- a/ui/views/widget/native_widget_aura.cc
+++ b/ui/views/widget/native_widget_aura.cc
@@ -80,6 +80,7 @@ NativeWidgetAura::NativeWidgetAura(internal::NativeWidgetDelegate* delegate)
       saved_window_state_(ui::SHOW_STATE_DEFAULT) {
   aura::client::SetFocusChangeObserver(window_, this);
   aura::client::SetActivationChangeObserver(window_, this);
+  wm::SetCursorDelegate(window_, this);
 }
 
 // static
@@ -725,10 +726,6 @@ void NativeWidgetAura::OnBoundsChanged(const gfx::Rect& old_bounds,
     delegate_->OnNativeWidgetSizeChanged(new_bounds.size());
 }
 
-gfx::NativeCursor NativeWidgetAura::GetCursor(const gfx::Point& point) {
-  return cursor_;
-}
-
 int NativeWidgetAura::GetNonClientComponent(const gfx::Point& point) const {
   return delegate_->GetNonClientComponent(point);
 }
@@ -948,6 +945,13 @@ int NativeWidgetAura::OnPerformDrop(const ui::DropTargetEvent& event) {
 }
 
 ////////////////////////////////////////////////////////////////////////////////
+// NativeWidgetAura, wm::CursorDelegate implementation:
+
+gfx::NativeCursor NativeWidgetAura::GetCursorForPoint(const gfx::Point& point) {
+  return cursor_;
+}
+
+////////////////////////////////////////////////////////////////////////////////
 // NativeWidgetAura, NativeWidget implementation:
 
 ui::EventHandler* NativeWidgetAura::GetEventHandler() {