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

tools/metrics/histograms/histograms.xml

Index: tools/metrics/histograms/histograms.xml
diff --git a/tools/metrics/histograms/histograms.xml b/tools/metrics/histograms/histograms.xml
index bce3cf4240b395184f3558969d262fe2d373322b..00ec77941c26dd860c70e89484f3cde25a6763f6 100644
--- a/tools/metrics/histograms/histograms.xml
+++ b/tools/metrics/histograms/histograms.xml
@@ -71504,7 +71504,6 @@ To add a new entry, add it with any value and run test to compute valid value.
   <int value="274103741" label="enable-ntp-popular-sites"/>
   <int value="278756320" label="disable-app-list-app-info"/>
   <int value="280322118" label="enable-unsafe-es3-apis"/>
-  <int value="323605372" label="ui-disable-compositor-animation-timelines"/>
   <int value="324631366" label="enable-drive-search-in-app-launcher"/>
   <int value="330138076" label="enable-clear-browsing-data-counters"/>
   <int value="346711293" label="enable-save-password-bubble"/>
@@ -71679,6 +71678,7 @@ To add a new entry, add it with any value and run test to compute valid value.
   <int value="1490255042" label="enable-overlay-scrollbar"/>
   <int value="1495341532" label="disable-mtp-write-support"/>
   <int value="1497924954" label="js-flags"/>
+  <int value="1502112281" label="ui-enable-compositor-animation-timelines"/>
   <int value="1505194447" label="disable-transition-compositing"/>
   <int value="1509901380" label="disable-drive-search-in-app-launcher"/>
   <int value="1510476448" label="disable-prefixed-encrypted-media"/>