Enable feature flag EnterpriseReportingInChromeOS by default

This feature flag has been rollout to 100%. Now we need to change the
default value to 'enabled' for GA, and extend the expiry date in case we
need to turn it off because of any unexpected reason.

Change the owner of this feature flag to bmalcolm@ because I have been
out of this area. (We may need to cleanup this flag after the feature is
fully launch.)

Bug: 1169268
Change-Id: I0473ebbb9b998d11ec7931298718ab6e8b090c1d
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2642635Reviewed-by: Owen Min <zmin@chromium.org>
Reviewed-by: Brian Malcolm <bmalcolm@chromium.org>
Commit-Queue: Anqing Zhao <anqing@chromium.org>
Cr-Commit-Position: refs/heads/master@{#846215}

chrome/browser/flag-metadata.json

@@ -2592,8 +2592,8 @@
   },
   {
     "name": "enterprise-reporting-in-chromeos",
-    "owners": [ "anqing" ],
-    "expiry_milestone": 87
+    "owners": [ "bmalcolm" ],
+    "expiry_milestone": 96
   },
   {
     "name": "ev-details-in-page-info",

chrome/common/chrome_features.cc

@@ -381,7 +381,7 @@ const base::Feature kEnterpriseReportingApiKeychainRecreation{
 #if BUILDFLAG(IS_CHROMEOS_ASH)
 // Upload enterprise cloud reporting from Chrome OS.
 const base::Feature kEnterpriseReportingInChromeOS{
-    "EnterpriseReportingInChromeOS", base::FEATURE_DISABLED_BY_DEFAULT};
+    "EnterpriseReportingInChromeOS", base::FEATURE_ENABLED_BY_DEFAULT};
 #endif
 
 #if BUILDFLAG(IS_CHROMEOS_ASH)