Flip the flag to enable smooth screen rotation by default.

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 f8590d486b3abcb383de29989a2ea4fac121cc2d..066727482d48bff44c304fd17e7e18a584dc2c12 100644
--- a/tools/metrics/histograms/histograms.xml
+++ b/tools/metrics/histograms/histograms.xml
@@ -103193,7 +103193,6 @@ from previous Chrome versions.
   <int value="-1634154256" label="ZeroSuggestRedirectToChrome:enabled"/>
   <int value="-1631329950" label="ssl-version-max"/>
   <int value="-1630419335" label="enable-download-notification"/>
-  <int value="-1629748710" label="ash-enable-smooth-screen-rotation"/>
   <int value="-1624854957" label="enable-es3-apis"/>
   <int value="-1620568042" label="FeaturePolicy:disabled"/>
   <int value="-1619757314" label="touch-scrolling-mode"/>
@@ -103917,6 +103916,7 @@ from previous Chrome versions.
   <int value="1222017136" label="WebRtcUseEchoCanceller3:disabled"/>
   <int value="1235800887" label="V8Ignition:enabled"/>
   <int value="1237297772" label="no-pings"/>
+  <int value="1240073971" label="ash-disable-smooth-screen-rotation"/>
   <int value="1242632259" label="ContentSuggestionsCategoryOrder:disabled"/>
   <int value="1245889469" label="enable-surface-worker"/>
   <int value="1247293682" label="topchrome-md"/>