UI Compositor: Disable external animation host for ui::Compositor (Aura)

ui/compositor/compositor_switches.cc

Index: ui/compositor/compositor_switches.cc
diff --git a/ui/compositor/compositor_switches.cc b/ui/compositor/compositor_switches.cc
index 1a2c6ca55e337a08337c47a1192a80c18a87b473..918993d255e3d16db5a83b5e2b5d144f59b2b15d 100644
--- a/ui/compositor/compositor_switches.cc
+++ b/ui/compositor/compositor_switches.cc
@@ -8,6 +8,9 @@
 
 namespace switches {
 
+const char kUIEnableCompositorAnimationTimelines[] =
+    "ui-enable-compositor-animation-timelines";
+
 // Enable compositing individual elements via hardware overlays when
 // permitted by device.
 const char kEnableHardwareOverlays[] = "enable-hardware-overlays";
@@ -15,9 +18,6 @@ const char kEnableHardwareOverlays[] = "enable-hardware-overlays";
 // Forces tests to produce pixel output when they normally wouldn't.
 const char kEnablePixelOutputInTests[] = "enable-pixel-output-in-tests";
 
-const char kUIDisableCompositorAnimationTimelines[] =
-    "ui-disable-compositor-animation-timelines";
-
 // Disable partial swap which is needed for some OpenGL drivers / emulators.
 const char kUIDisablePartialSwap[] = "ui-disable-partial-swap";