Added --enable-ui-devtools to chrome://flags.

chrome/browser/about_flags.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/about_flags.h"
 
 #include <iterator>
 #include <map>
 #include <set>
 #include <utility>
@@ skipping 97 matching lines @@
 #include "chrome/browser/android/chrome_feature_list.h"
 #include "components/feature_engagement_tracker/public/feature_constants.h"
 #include "components/feature_engagement_tracker/public/feature_list.h"
 #else  // OS_ANDROID
 #include "ui/message_center/message_center_switches.h"
 #endif  // OS_ANDROID
 
 #if defined(OS_CHROMEOS)
 #include "chromeos/chromeos_switches.h"
 #include "components/arc/arc_features.h"
+#include "components/ui_devtools/switches.h"
 #include "third_party/cros_system_api/switches/chrome_switches.h"
 #endif  // OS_CHROMEOS
 
 #if defined(OS_MACOSX)
 #include "chrome/browser/ui/browser_dialogs.h"
 #endif  // OS_MACOSX
 
 #if BUILDFLAG(ENABLE_APP_LIST)
 #include "ui/app_list/app_list_switches.h"
 #endif  // ENABLE_APP_LIST
@@ skipping 2599 matching lines @@
      flag_descriptions::kEnableExpandedAutofillCreditCardPopupLayoutName,
      flag_descriptions::kEnableExpandedAutofillCreditCardPopupLayoutDescription,
      kOsAndroid,
      FEATURE_WITH_PARAMS_VALUE_TYPE(
          autofill::kAutofillCreditCardPopupLayout,
          kAutofillCreditCardPopupLayoutFeatureVariations,
          // Must be AutofillCreditCardDropdownVariations to prevent DCHECK crash
          // when the flag is manually enabled in a local build.
          "AutofillCreditCardDropdownVariations")},
 #endif  // OS_ANDROID
+
+#if defined(OS_CHROMEOS)
+    {ui::devtools::kEnableUiDevTools, flag_descriptions::kUiDevToolsName,
+     flag_descriptions::kUiDevToolsDescription, kOsCrOS,
+     SINGLE_VALUE_TYPE(ui::devtools::kEnableUiDevTools)},
+#endif  // defined(OS_CHROMEOS)
+
     {"enable-autofill-credit-card-last-used-date-display",
      flag_descriptions::kEnableAutofillCreditCardLastUsedDateDisplayName,
      flag_descriptions::kEnableAutofillCreditCardLastUsedDateDisplayDescription,
      kOsAll,
      FEATURE_WITH_PARAMS_VALUE_TYPE(
          autofill::kAutofillCreditCardLastUsedDateDisplay,
          kAutofillCreditCardLastUsedDateFeatureVariations,
          // Must be AutofillCreditCardDropdownVariations to prevent DCHECK crash
          // when the flag is manually enabled in a local build.
          "AutofillCreditCardDropdownVariations")},
@@ skipping 361 matching lines @@
   }
 #endif  // OS_ANDROID
 
 #if defined(OS_CHROMEOS)
   // Don't expose --mash/--mus outside of Canary or developer builds.
   if (!strcmp("mus", entry.internal_name) &&
       channel != version_info::Channel::DEV &&
       channel != version_info::Channel::UNKNOWN) {
     return true;
   }
+
+  // enable-ui-devtools is only available on for non Stable channels.
+  if (!strcmp(ui::devtools::kEnableUiDevTools, entry.internal_name) &&
+      channel == version_info::Channel::STABLE) {
+    return true;
+  }
 #endif  // defined(OS_CHROMEOS)
 
   // data-reduction-proxy-lo-fi and enable-data-reduction-proxy-lite-page
   // are only available for Chromium builds and the Canary/Dev/Beta channels.
   if ((!strcmp("data-reduction-proxy-lo-fi", entry.internal_name) ||
        !strcmp("enable-data-reduction-proxy-lite-page",
                entry.internal_name)) &&
       channel != version_info::Channel::BETA &&
       channel != version_info::Channel::DEV &&
       channel != version_info::Channel::CANARY &&
@@ skipping 148 matching lines @@
 const base::HistogramBase::Sample kBadSwitchFormatHistogramId = 0;
 
 const FeatureEntry* GetFeatureEntries(size_t* count) {
   *count = arraysize(kFeatureEntries);
   return kFeatureEntries;
 }
 
 }  // namespace testing
 
 }  // namespace about_flags