Add flags entry to enable Chrome OS component updates fature.

chrome/browser/component_updater/pepper_flash_component_installer.cc

 // Copyright (c) 2013 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/component_updater/pepper_flash_component_installer.h"
 
 #include <stddef.h>
 
 #include <memory>
 #include <string>
@@ skipping 27 matching lines @@
 #include "components/component_updater/default_component_installer.h"
 #include "components/update_client/update_client.h"
 #include "components/update_client/update_client_errors.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/plugin_service.h"
 #include "content/public/common/content_constants.h"
 #include "content/public/common/pepper_plugin_info.h"
 #include "ppapi/shared_impl/ppapi_permissions.h"
 
 #if defined(OS_CHROMEOS)
-#include "base/feature_list.h"
 #include "chrome/browser/chromeos/settings/cros_settings.h"
 #include "chrome/browser/ui/ash/system_tray_delegate_chromeos.h"
+#include "chrome/common/chrome_features.h"
 #include "chromeos/dbus/dbus_method_call_status.h"
 #include "chromeos/dbus/dbus_thread_manager.h"
 #include "chromeos/dbus/image_loader_client.h"
 #include "content/public/browser/browser_thread.h"
 #elif defined(OS_LINUX)
 #include "chrome/common/component_flash_hint_file_linux.h"
 #endif  // defined(OS_CHROMEOS)
 
 using content::BrowserThread;
 using content::PluginService;
@@ skipping 46 matching lines @@
   if (loader) {
     loader->RegisterComponent("PepperFlashPlayer", version, install_dir.value(),
                               base::Bind(&LogRegistrationResult));
   } else {
     LOG(ERROR) << "Failed to get ImageLoaderClient object.";
   }
 }
 
 // Determine whether or not to skip registering flash component updates.
 bool SkipFlashRegistration(ComponentUpdateService* cus) {
-   const base::Feature kCrosCompUpdates {
-     "CrosCompUpdates", base::FEATURE_DISABLED_BY_DEFAULT
-   };
-   if (!base::FeatureList::IsEnabled(kCrosCompUpdates))
+   if (!base::FeatureList::IsEnabled(features::kCrosCompUpdates))
      return true;
 
    // If the version of Chrome is pinned on the device (probably via enterprise
    // policy), do not component update Flash player.
    chromeos::CrosSettingsProvider::TrustedStatus status =
        chromeos::CrosSettings::Get()->PrepareTrustedValues(
            base::Bind(&RegisterPepperFlashComponent, cus));
 
    // Only if the settings are trusted, read the update settings and allow them
    // to disable Flash component updates. If the settings are untrusted, then we
@@ skipping 242 matching lines @@
   std::unique_ptr<ComponentInstallerTraits> traits(
       new FlashComponentInstallerTraits);
   // |cus| will take ownership of |installer| during installer->Register(cus).
   DefaultComponentInstaller* installer =
       new DefaultComponentInstaller(std::move(traits));
   installer->Register(cus, base::Closure());
 #endif  // defined(GOOGLE_CHROME_BUILD)
 }
 
 }  // namespace component_updater