Convert //ios/chrome/browser:about_flags to use buildflag_header.

ios/chrome/browser/about_flags.mm

 // Copyright 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.
 
 // Implementation of about_flags for iOS that sets flags based on experimental
 // settings.
 
 #include "ios/chrome/browser/about_flags.h"
 
 #include <stddef.h>
@@ skipping 13 matching lines @@
 #include "components/flags_ui/feature_entry.h"
 #include "components/flags_ui/feature_entry_macros.h"
 #include "components/flags_ui/flags_storage.h"
 #include "components/flags_ui/flags_ui_switches.h"
 #include "components/ntp_tiles/switches.h"
 #include "components/reading_list/core/reading_list_switches.h"
 #include "components/strings/grit/components_strings.h"
 #include "components/sync/driver/sync_driver_switches.h"
 #include "google_apis/gaia/gaia_switches.h"
 #include "ios/chrome/browser/chrome_switches.h"
+#include "ios/chrome/browser/google_api_keys.h"
 #include "ios/chrome/grit/ios_strings.h"
 #include "ios/web/public/user_agent.h"
 #include "ios/web/public/web_view_creation_util.h"
 
 #if !defined(OFFICIAL_BUILD)
 #include "components/variations/variations_switches.h"
 #endif
 
-#if !defined(__has_feature) || !__has_feature(objc_arc)
-#error "This file requires ARC support."
-#endif
-
 namespace {
 // To add a new entry, add to the end of kFeatureEntries. There are two
 // distinct types of entries:
 // . SINGLE_VALUE: entry is either on or off. Use the SINGLE_VALUE_TYPE
 //   macro for this type supplying the command line to the macro.
 // . MULTI_VALUE: a list of choices, the first of which should correspond to a
 //   deactivated state for this lab (i.e. no command line option).  To specify
 //   this type of entry use the macro MULTI_VALUE_TYPE supplying it the
 //   array of choices.
 // See the documentation of FeatureEntry for details on the fields.
@@ skipping 16 matching lines @@
 
 // Add all switches from experimental flags to |command_line|.
 void AppendSwitchesFromExperimentalSettings(base::CommandLine* command_line) {
   NSUserDefaults* defaults = [NSUserDefaults standardUserDefaults];
 
   // GAIA staging environment.
   NSString* kGAIAEnvironment = @"GAIAEnvironment";
   NSString* gaia_environment = [defaults stringForKey:kGAIAEnvironment];
   if ([gaia_environment isEqualToString:@"Staging"]) {
     command_line->AppendSwitchASCII(switches::kGoogleApisUrl,
-                                    GOOGLE_STAGING_API_URL);
-    command_line->AppendSwitchASCII(switches::kLsoUrl, GOOGLE_STAGING_LSO_URL);
+                                    BUILDFLAG(GOOGLE_STAGING_API_URL));
+    command_line->AppendSwitchASCII(switches::kLsoUrl,
+                                    BUILDFLAG(GOOGLE_STAGING_LSO_URL));
   } else if ([gaia_environment isEqualToString:@"Test"]) {
-    command_line->AppendSwitchASCII(switches::kGaiaUrl, GOOGLE_TEST_OAUTH_URL);
+    command_line->AppendSwitchASCII(switches::kGaiaUrl,
+                                    BUILDFLAG(GOOGLE_TEST_OAUTH_URL));
     command_line->AppendSwitchASCII(switches::kGoogleApisUrl,
-                                    GOOGLE_TEST_API_URL);
-    command_line->AppendSwitchASCII(switches::kLsoUrl, GOOGLE_TEST_LSO_URL);
+                                    BUILDFLAG(GOOGLE_TEST_API_URL));
+    command_line->AppendSwitchASCII(switches::kLsoUrl,
+                                    BUILDFLAG(GOOGLE_TEST_LSO_URL));
     command_line->AppendSwitchASCII(switches::kSyncServiceURL,
-                                    GOOGLE_TEST_SYNC_URL);
+                                    BUILDFLAG(GOOGLE_TEST_SYNC_URL));
     command_line->AppendSwitchASCII(switches::kOAuth2ClientID,
-                                    GOOGLE_TEST_OAUTH_CLIENT_ID);
+                                    BUILDFLAG(GOOGLE_TEST_OAUTH_CLIENT_ID));
     command_line->AppendSwitchASCII(switches::kOAuth2ClientSecret,
-                                    GOOGLE_TEST_OAUTH_CLIENT_SECRET);
+                                    BUILDFLAG(GOOGLE_TEST_OAUTH_CLIENT_SECRET));
   }
 
   // Populate command line flag for the Tab Switcher experiment from the
   // configuration plist.
   NSString* enableTabSwitcher = [defaults stringForKey:@"EnableTabSwitcher"];
   if ([enableTabSwitcher isEqualToString:@"Enabled"]) {
     command_line->AppendSwitch(switches::kEnableTabSwitcher);
   } else if ([enableTabSwitcher isEqualToString:@"Disabled"]) {
     command_line->AppendSwitch(switches::kDisableTabSwitcher);
   }
@@ skipping 236 matching lines @@
 }
 
 namespace testing {
 
 const flags_ui::FeatureEntry* GetFeatureEntries(size_t* count) {
   *count = arraysize(kFeatureEntries);
   return kFeatureEntries;
 }
 
 }  // namespace testing