New build flag system, convert Google Now flag

chrome/browser/extensions/component_loader.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/extensions/component_loader.h"
 
 #include <string>
 
 #include "base/command_line.h"
 #include "base/files/file_util.h"
 #include "base/json/json_string_value_serializer.h"
 #include "base/metrics/field_trial.h"
 #include "base/metrics/histogram_macros.h"
 #include "base/path_service.h"
 #include "base/profiler/scoped_profile.h"
 #include "base/time/time.h"
 #include "base/trace_event/trace_event.h"
 #include "chrome/browser/extensions/component_extensions_whitelist/whitelist.h"
 #include "chrome/browser/extensions/data_deleter.h"
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/pdf/pdf_extension_util.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/search/hotword_service.h"
 #include "chrome/browser/search/hotword_service_factory.h"
 #include "chrome/browser/signin/signin_manager_factory.h"
 #include "chrome/common/channel_info.h"
 #include "chrome/common/chrome_paths.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/extensions/extension_constants.h"
+#include "chrome/common/features.h"
 #include "chrome/grit/chromium_strings.h"
 #include "chrome/grit/generated_resources.h"
 #include "components/crx_file/id_util.h"
 #include "components/signin/core/browser/signin_manager.h"
 #include "components/signin/core/browser/signin_manager_base.h"
 #include "components/version_info/version_info.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/plugin_service.h"
 #include "content/public/common/content_switches.h"
 #include "extensions/common/constants.h"
@@ skipping 335 matching lines @@
       base::FilePath(FILE_PATH_LITERAL("image_loader")));
 #endif  // defined(IMAGE_LOADER_EXTENSION)
 }
 
 void ComponentLoader::AddNetworkSpeechSynthesisExtension() {
   Add(IDR_NETWORK_SPEECH_SYNTHESIS_MANIFEST,
       base::FilePath(FILE_PATH_LITERAL("network_speech_synthesis")));
 }
 
 void ComponentLoader::AddGoogleNowExtension() {
-#if defined(ENABLE_GOOGLE_NOW)
+#if BUILDFLAG(ENABLE_GOOGLE_NOW)
   const char kEnablePrefix[] = "Enable";
   const char kFieldTrialName[] = "GoogleNow";
   std::string enable_prefix(kEnablePrefix);
   std::string field_trial_result =
       base::FieldTrialList::FindFullName(kFieldTrialName);
 
   bool enabled_via_field_trial =
       field_trial_result.compare(0, enable_prefix.length(), enable_prefix) == 0;
 
   // Enable the feature on trybots and trunk builds.
@@ skipping 15 matching lines @@
 #endif  // defined(ENABLE_APP_LIST) && defined(OS_CHROMEOS)
 
   const int google_now_manifest_id = IDR_GOOGLE_NOW_MANIFEST;
   const base::FilePath root_directory =
       base::FilePath(FILE_PATH_LITERAL("google_now"));
   if (enabled) {
     Add(google_now_manifest_id, root_directory);
   } else {
     DeleteData(google_now_manifest_id, root_directory);
   }
-#endif  // defined(ENABLE_GOOGLE_NOW)
+#endif  // BUILDFLAG(ENABLE_GOOGLE_NOW)
 }
 
 #if defined(OS_CHROMEOS)
 void ComponentLoader::AddChromeVoxExtension(
     const base::Closure& done_cb) {
   base::FilePath resources_path;
   CHECK(PathService::Get(chrome::DIR_RESOURCES, &resources_path));
 
   base::FilePath chromevox_path =
       resources_path.Append(extension_misc::kChromeVoxExtensionPath);
@@ skipping 333 matching lines @@
       manifest.release(),
       root_directory,
       false);
   CHECK_EQ(extension_id, actual_extension_id);
   if (!done_cb.is_null())
     done_cb.Run();
 }
 #endif
 
 }  // namespace extensions