Rename Lo-Fi previews to lite pages

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 bd59a3736ca24e08e1b944a6e7c0312172177d39..d2ff8161d35b2aafdb7154d6de6d8e64c88e4e90 100644
--- a/tools/metrics/histograms/histograms.xml
+++ b/tools/metrics/histograms/histograms.xml
@@ -8176,7 +8176,8 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
   <owner>megjablon@chromium.org</owner>
   <summary>
     Counts of pageloads that received or requested, but did not receive, various
-    Lo-Fi transformations.
+    Lo-Fi lite page transformations. Recorded when a lite page is requested or
+    received through Data compression proxy.
   </summary>
 </histogram>
 
@@ -75597,9 +75598,9 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 </enum>
 
 <enum name="DataReductionProxyLoFiTransformationType" type="int">
-  <int value="0" label="Pageloads that are Lo-Fi previews"/>
+  <int value="0" label="Pageloads that are lite pages"/>
   <int value="1"
-      label="Pageloads that requested Lo-Fi previews, but did not have the
+      label="Pageloads that requested lite pages, but did not have the
              transformation"/>
 </enum>
 
@@ -87507,6 +87508,7 @@ value.
   <int value="1942911276" label="enable-grouped-history"/>
   <int value="1944156526" label="sync-url"/>
   <int value="1947350992" label="drop-sync-credential:disabled"/>
+  <int value="1951466218" label="enable-data-reduction-proxy-lite-page"/>
   <int value="1955677113" label="trace-export-events-to-etw"/>
   <int value="1958387645" label="ScanCardsInWebPayments:enabled"/>
   <int value="1961425320" label="force-qtkit"/>