components: Move PrefRegistrySyncable into user_prefs namespace.

chrome/browser/ui/network_profile_bubble.h

Index: chrome/browser/ui/network_profile_bubble.h
diff --git a/chrome/browser/ui/network_profile_bubble.h b/chrome/browser/ui/network_profile_bubble.h
index 18f327995e51f33d8038f455958d2cd14fd05d14..a49895ce5303c5055d18a8c841e0146d537d2b72 100644
--- a/chrome/browser/ui/network_profile_bubble.h
+++ b/chrome/browser/ui/network_profile_bubble.h
@@ -8,13 +8,16 @@
 #include "base/basictypes.h"
 
 class Browser;
-class PrefRegistrySyncable;
 class Profile;
 
 namespace base {
 class FilePath;
 }
 
+namespace user_prefs {
+class PrefRegistrySyncable;
+}
+
 // This class will try to detect if the profile is on a network share and if
 // this is the case notify the user with an info bubble.
 class NetworkProfileBubble {
@@ -58,7 +61,7 @@ class NetworkProfileBubble {
   static void SetNotificationShown(bool shown);
 
   // Register the pref that controls whether the bubble should be shown anymore.
-  static void RegisterUserPrefs(PrefRegistrySyncable* registry);
+  static void RegisterUserPrefs(user_prefs::PrefRegistrySyncable* registry);
 
   // Helper function wrapping the UMA_HISTOGRAM_ENUMERATION macro.
   static void RecordUmaEvent(MetricNetworkedProfileCheck event);