Move CommandLine to base namespace.

chrome/browser/prefs/pref_service_syncable_factory.h

Index: chrome/browser/prefs/pref_service_syncable_factory.h
diff --git a/chrome/browser/prefs/pref_service_syncable_factory.h b/chrome/browser/prefs/pref_service_syncable_factory.h
index 715244efb1ea905ab3f3d5914ecb52f26da60c37..b3d326ca3f701df9972f3c99ac2613a7331fe590 100644
--- a/chrome/browser/prefs/pref_service_syncable_factory.h
+++ b/chrome/browser/prefs/pref_service_syncable_factory.h
@@ -7,9 +7,12 @@
 
 #include "base/prefs/pref_service_factory.h"
 
-class CommandLine;
 class PrefServiceSyncable;
 
+namespace base {
+class CommandLine;
+}
+
 namespace policy {
 class PolicyService;
 }
@@ -33,7 +36,7 @@ class PrefServiceSyncableFactory : public base::PrefServiceFactory {
 #endif
 
   // Specifies to use an actual command-line backed command-line pref store.
-  void SetCommandLine(CommandLine* command_line);
+  void SetCommandLine(base::CommandLine* command_line);
 
   scoped_ptr<PrefServiceSyncable> CreateSyncable(
       user_prefs::PrefRegistrySyncable* registry);