[Passwords] Add UI Flag for Password Check

This change adds an UI flag for the Bulk Password Check feature on
Desktop.

Bug: 1049177
Change-Id: I5ffc4ab33ade02b1a3a9b5181770704e4d3e2af7
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2043834Reviewed-by: Vasilii Sukhanov <vasilii@chromium.org>
Commit-Queue: Jan Wilken Dörrie <jdoerrie@chromium.org>
Cr-Commit-Position: refs/heads/master@{#739411}

chrome/browser/about_flags.cc

@@ -4891,6 +4891,12 @@ const FeatureEntry kFeatureEntries[] = {
      flag_descriptions::kLegacyTLSEnforcedDescription, kOsDesktop | kOsAndroid,
      FEATURE_VALUE_TYPE(net::features::kLegacyTLSEnforced)},
 
+#if !defined(OS_ANDROID)
+    {"password-check", flag_descriptions::kPasswordCheckName,
+     flag_descriptions::kPasswordCheckDescription, kOsDesktop,
+     FEATURE_VALUE_TYPE(password_manager::features::kPasswordCheck)},
+#endif  // !defined(OS_ANDROID)
+
     // NOTE: Adding a new flag requires adding a corresponding entry to enum
     // "LoginCustomFlags" in tools/metrics/histograms/enums.xml. See "Flag
     // Histograms" in tools/metrics/histograms/README.md (run the

chrome/browser/flag-metadata.json

@@ -3030,6 +3030,11 @@
     "owners": [ "carlosil", "estark" ],
     "expiry_milestone": 83
   },
+  {
+    "name": "password-check",
+    "owners": [ "jdoerrie", "vasilii" ],
+    "expiry_milestone": 84
+  },
   {
     "name": "password-editing-android",
     "owners": [ "fhorschig" ],

chrome/browser/flag_descriptions.cc

@@ -2847,6 +2847,10 @@ const char kOmniboxTabSwitchSuggestionsDedicatedRowDescription[] =
     "Put each tab switch suggestion in a separate suggestion, immediately "
     "following the original suggestion.";
 
+const char kPasswordCheckName[] = "Bulk Password Check";
+const char kPasswordCheckDescription[] =
+    "Enables the Bulk Password Check feature for signed-in users.";
+
 const char kTabFreezeName[] = "Tab Freeze";
 const char kTabFreezeDescription[] =
     "Enables freezing eligible tabs when they have been backgrounded for 5 "

chrome/browser/flag_descriptions.h

@@ -1630,6 +1630,9 @@ extern const char kOmniboxTabSwitchSuggestionsDescription[];
 extern const char kOmniboxTabSwitchSuggestionsDedicatedRowName[];
 extern const char kOmniboxTabSwitchSuggestionsDedicatedRowDescription[];
 
+extern const char kPasswordCheckName[];
+extern const char kPasswordCheckDescription[];
+
 extern const char kTabFreezeName[];
 extern const char kTabFreezeDescription[];
 

tools/metrics/histograms/enums.xml

@@ -36993,6 +36993,7 @@ from previous Chrome versions.
   <int value="-1899715534" label="GamepadPollingInterval:enabled"/>
   <int value="-1899409297"
       label="ProcessSharingWithStrictSiteInstances:disabled"/>
+  <int value="-1898386671" label="PasswordCheck:enabled"/>
   <int value="-1895719323" label="VrBrowsingTabsView:enabled"/>
   <int value="-1894699049" label="AudioFocusEnforcement:disabled"/>
   <int value="-1894054576" label="FontAccess:enabled"/>
@@ -40274,6 +40275,7 @@ from previous Chrome versions.
   <int value="2126203058" label="force-show-update-menu-badge"/>
   <int value="2127648677" label="OmniboxExperimentalSuggestScoring:disabled"/>
   <int value="2129184006" label="NTPOfflinePageDownloadSuggestions:enabled"/>
+  <int value="2129524809" label="PasswordCheck:disabled"/>
   <int value="2129929643" label="enable-use-zoom-for-dsf"/>
   <int value="2132595171" label="OmniboxSearchEngineLogo:enabled"/>
   <int value="2133594095" label="CryptAuthV2DeviceActivityStatus:disabled"/>