Make callers of CommandLine use it via the base:: namespace.

chrome/browser/sync/profile_sync_service_factory.cc

Index: chrome/browser/sync/profile_sync_service_factory.cc
diff --git a/chrome/browser/sync/profile_sync_service_factory.cc b/chrome/browser/sync/profile_sync_service_factory.cc
index 0016b96500d10dcfd145c0e1e449efc7d5c6aef8..33bb0c675422cbe253b57b8b7264dde3887cb84c 100644
--- a/chrome/browser/sync/profile_sync_service_factory.cc
+++ b/chrome/browser/sync/profile_sync_service_factory.cc
@@ -107,8 +107,8 @@ KeyedService* ProfileSyncServiceFactory::BuildServiceInstanceFor(
   // once http://crbug.com/171406 has been fixed.
   AboutSigninInternalsFactory::GetForProfile(profile);
 
-  const GURL sync_service_url =
-      ProfileSyncService::GetSyncServiceURL(*CommandLine::ForCurrentProcess());
+  const GURL sync_service_url = ProfileSyncService::GetSyncServiceURL(
+      *base::CommandLine::ForCurrentProcess());
 
   scoped_ptr<SupervisedUserSigninManagerWrapper> signin_wrapper(
       new SupervisedUserSigninManagerWrapper(profile, signin));
@@ -132,15 +132,9 @@ KeyedService* ProfileSyncServiceFactory::BuildServiceInstanceFor(
   ProfileSyncService* pss = new ProfileSyncService(
       scoped_ptr<ProfileSyncComponentsFactory>(
           new ProfileSyncComponentsFactoryImpl(
-              profile,
-              CommandLine::ForCurrentProcess(),
-              sync_service_url,
-              token_service,
-              url_request_context_getter)),
-      profile,
-      signin_wrapper.Pass(),
-      token_service,
-      behavior);
+              profile, base::CommandLine::ForCurrentProcess(), sync_service_url,
+              token_service, url_request_context_getter)),
+      profile, signin_wrapper.Pass(), token_service, behavior);
 
   pss->factory()->RegisterDataTypes(pss);
   pss->Initialize();