Add about flag for Data Saver rebranding

Bug: 928891
Change-Id: Icdcf8774a6d6d52444a79c765ba6b353b0fffd45
Reviewed-on: https://chromium-review.googlesource.com/c/1455315Reviewed-by: Avi Drissman <avi@chromium.org>
Reviewed-by: Tarun Bansal <tbansal@chromium.org>
Commit-Queue: Robert Ogden <robertogden@chromium.org>
Cr-Commit-Position: refs/heads/master@{#629727}

chrome/browser/about_flags.cc

@@ -2026,6 +2026,10 @@ const FeatureEntry kFeatureEntries[] = {
      flag_descriptions::kEnableLitePageServerPreviewsDescription, kOsAndroid,
      FEATURE_VALUE_TYPE(previews::features::kLitePageServerPreviews)},
 #endif  // OS_ANDROID
+    {"enable-lite-mode-rebrand",
+     flag_descriptions::kEnableDataSaverLiteModeRebrandName,
+     flag_descriptions::kEnableDataSaverLiteModeRebrandDescription, kOsAll,
+     FEATURE_VALUE_TYPE(previews::features::kDataSaverLiteModeRebranding)},
     {"enable-client-lo-fi", flag_descriptions::kEnableClientLoFiName,
      flag_descriptions::kEnableClientLoFiDescription, kOsAll,
      FEATURE_VALUE_TYPE(previews::features::kClientLoFi)},

chrome/browser/flag-metadata.json

@@ -1432,6 +1432,11 @@
     // "owners": [ "your-team" ],
     "expiry_milestone": 76
   },
+  {
+    "name": "enable-lite-mode-rebrand",
+    "owners": [ "robertogden@chromium.org" ],
+    "expiry_milestone": 75
+  },
   {
     "name": "enable-lite-page-server-previews",
     // "owners": [ "your-team" ],

chrome/browser/flag_descriptions.cc

@@ -509,6 +509,11 @@ const char kEnableChromevoxDeveloperOptionName[] =
 const char kEnableChromevoxDeveloperOptionDescription[] =
     "This option provides tools for developing in chromevox.";
 
+const char kEnableDataSaverLiteModeRebrandName[] =
+    "Data Saver Lite Mode Rebranding";
+const char kEnableDataSaverLiteModeRebrandDescription[] =
+    "Enable the Data Saver rebranding to Lite Mode.";
+
 const char kEnableClientLoFiName[] = "Client-side Lo-Fi previews";
 
 const char kEnableClientLoFiDescription[] =

chrome/browser/flag_descriptions.h

@@ -340,6 +340,9 @@ extern const char kEnableCaptivePortalRandomUrlDescription[];
 extern const char kEnableChromevoxDeveloperOptionName[];
 extern const char kEnableChromevoxDeveloperOptionDescription[];
 
+extern const char kEnableDataSaverLiteModeRebrandName[];
+extern const char kEnableDataSaverLiteModeRebrandDescription[];
+
 extern const char kEnableClientLoFiName[];
 extern const char kEnableClientLoFiDescription[];
 

tools/metrics/histograms/enums.xml

@@ -30796,6 +30796,7 @@ from previous Chrome versions.
   <int value="-1772172557" label="enable-osk-overscroll"/>
   <int value="-1768672408" label="ChromeDuplex:disabled"/>
   <int value="-1767470652" label="out-of-process-pdf"/>
+  <int value="-1766129470" label="DataSaverLiteModeRebranding:disabled"/>
   <int value="-1758468685" label="DownloadHomeV2:disabled"/>
   <int value="-1755301960" label="ClearOldBrowsingData:enabled"/>
   <int value="-1753458842" label="OfflinePagesLivePageSharing:disabled"/>
@@ -32741,6 +32742,7 @@ from previous Chrome versions.
   <int value="1612446645" label="enable-weak-memorycache"/>
   <int value="1612871297" label="WebPayments:disabled"/>
   <int value="1612974229" label="allow-insecure-localhost"/>
+  <int value="1614309501" label="DataSaverLiteModeRebranding:enabled"/>
   <int value="1614596813" label="CloseButtonsInactiveTabs:disabled"/>
   <int value="1615988672" label="GrantNotificationsToDSE:enabled"/>
   <int value="1617187093" label="enable-improved-a2hs"/>