Enabled feature by default

Enabling the kMacSystemMediaPermissionsInfoUi feature on trunk after
experimenting at 1% in Stable with no reported issues and no crashes
noticed, and in preparation for enabling for 100% of Stable.


Change-Id: Iac31eb2999834f64f4c2df85b81ec598679632bb
Bug: 1055323
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2069138
Commit-Queue: Balazs Engedy <engedy@chromium.org>
Reviewed-by: Balazs Engedy <engedy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#744215}

chrome/common/chrome_features.cc

@@ -484,7 +484,7 @@ const base::Feature kMacMaterialDesignDownloadShelf{
 // which, when clicked, displays a bubble with information on how to toggle
 // Chrome's system-level media permissions.
 const base::Feature kMacSystemMediaPermissionsInfoUi{
-    "MacSystemMediaPermissionsInfoUI", base::FEATURE_DISABLED_BY_DEFAULT};
+    "MacSystemMediaPermissionsInfoUI", base::FEATURE_ENABLED_BY_DEFAULT};
 
 // Enable screen capture system permission check on Mac 10.15+.
 const base::Feature kMacSystemScreenCapturePermissionCheck{