New build flag system, convert Google Now flag

chrome/common/pref_names.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/common/pref_names.h"
 
 #include "base/basictypes.h"
+#include "chrome/common/features.h"
 #include "chrome/common/pref_font_webkit_names.h"
 
 namespace prefs {
 
 // *************** PROFILE PREFS ***************
 // These are attached to the user profile
 
 
 // A bool pref that keeps whether the child status for this profile was already
 // successfully checked via ChildAccountService.
@@ skipping 1532 matching lines @@
 
 // Dictionary that maps Geolocation network provider server URLs to
 // corresponding access token.
 const char kGeolocationAccessToken[] = "geolocation.access_token";
 
 #if defined(OS_ANDROID)
 // Boolean that controls the enabled-state of Geolocation in content.
 const char kGeolocationEnabled[] = "geolocation.enabled";
 #endif
 
-#if defined(ENABLE_GOOGLE_NOW)
+#if BUILDFLAG(ENABLE_GOOGLE_NOW)
 // Boolean that is true when Google services can use the user's location.
 const char kGoogleGeolocationAccessEnabled[] =
     "googlegeolocationaccess.enabled";
 #endif
 
 // Boolean that specifies whether to enable the Google Now Launcher extension.
 // Note: This is not the notifications component gated by ENABLE_GOOGLE_NOW.
 const char kGoogleNowLauncherEnabled[] = "google_now_launcher.enabled";
 
 // The default audio capture device used by the Media content setting.
@@ skipping 600 matching lines @@
 // Policy that indicates how to handle animated images.
 const char kAnimationPolicy[] = "settings.a11y.animation_policy";
 #endif
 
 const char kBackgroundTracingLastUpload[] = "background_tracing.last_upload";
 
 const char kAllowDinosaurEasterEgg[] =
     "allow_dinosaur_easter_egg";
 
 }  // namespace prefs