Add option to enable system tray mic gain in chrome://flags

Bug: 1065079
Change-Id: I22dfe74700313bf3d5b1755a8fbcdcdebdbec8a2
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2130969Reviewed-by: Tim Song <tengs@chromium.org>
Commit-Queue: Ahmed Mehfooz <amehfooz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#755204}

chrome/browser/about_flags.cc

@@ -2121,6 +2121,9 @@ const FeatureEntry kFeatureEntries[] = {
     {"message-center-redesign", flag_descriptions::kMessageCenterRedesignName,
      flag_descriptions::kMessageCenterRedesignDescription, kOsCrOS,
      FEATURE_VALUE_TYPE(ash::features::kUnifiedMessageCenterRefactor)},
+    {"system-tray-mic-gain", flag_descriptions::kSystemTrayMicGainName,
+     flag_descriptions::kSystemTrayMicGainDescription, kOsCrOS,
+     FEATURE_VALUE_TYPE(ash::features::kSystemTrayMicGainSetting)},
 #endif  // OS_CHROMEOS
     {
         "disable-accelerated-video-decode",

chrome/browser/flag-metadata.json

@@ -3775,6 +3775,11 @@
     "owners": [ "joedow", "garykac", "jamiewalch" ],
     "expiry_milestone": 86
   },
+  {
+    "name": "system-tray-mic-gain",
+    "owners": ["amehfooz", "tengs"],
+    "expiry_milestone": 86
+  },
   {
     "name": "tab-groups",
     "owners": [ "chrome-desktop-ui-seattle@google.com", "bsep" ],

chrome/browser/flag_descriptions.cc

@@ -1859,6 +1859,11 @@ const char kSystemKeyboardLockDescription[] =
     "keyboard shortcuts and have the events routed directly to the website "
     "when in fullscreen mode.";
 
+const char kSystemTrayMicGainName[] = "Modify mic gain in the system tray";
+const char kSystemTrayMicGainDescription[] =
+    "Enables mic gain settings in the system tray audio "
+    "settings.";
+
 const char kTabEngagementReportingName[] = "Tab Engagement Metrics";
 const char kTabEngagementReportingDescription[] =
     "Tracks tab engagement and lifetime metrics.";

chrome/browser/flag_descriptions.h

@@ -1072,6 +1072,9 @@ extern const char kSyncErrorInfoBarDescription[];
 extern const char kSyncSandboxName[];
 extern const char kSyncSandboxDescription[];
 
+extern const char kSystemTrayMicGainName[];
+extern const char kSystemTrayMicGainDescription[];
+
 extern const char kTabEngagementReportingName[];
 extern const char kTabEngagementReportingDescription[];
 

tools/metrics/histograms/enums.xml

@@ -39147,6 +39147,7 @@ from previous Chrome versions.
   <int value="-90032223" label="BuiltInModuleInfra:disabled"/>
   <int value="-89690053" label="MaterialDesignUserManager:enabled"/>
   <int value="-89567017" label="ChromeColorsCustomColorPicker:enabled"/>
+  <int value="-89434839" label="SystemTrayMicGainSetting:enabled"/>
   <int value="-88822940" label="ssl-version-min"/>
   <int value="-88273414" label="ContentSuggestionsShowSummary:enabled"/>
   <int value="-86788587" label="allow-autofill-sync-credential"/>
@@ -40681,6 +40682,7 @@ from previous Chrome versions.
   <int value="1733390925" label="force-enable-stylus-tools"/>
   <int value="1735934914" label="OverlayScrollbarFlashWhenMouseEnter:disabled"/>
   <int value="1736698988" label="FsNosymfollow:disabled"/>
+  <int value="1738520473" label="SystemTrayMicGainSetting:disabled"/>
   <int value="1739456903" label="PWAFullCodeCache:enabled"/>
   <int value="1741855651"
       label="OmniboxTabSwitchSuggestionsDedicatedRow:disabled"/>