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 823a72b3b7f2a0336415c0675dd566cc6788c004..2f54e0e397d7ec97a4e01cff7f164921d403c373 100644
--- a/tools/metrics/histograms/histograms.xml
+++ b/tools/metrics/histograms/histograms.xml
@@ -102980,7 +102980,6 @@ 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"/>
@@ -103696,6 +103695,7 @@ 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"/>