Move CommandLine to base namespace.

chrome/browser/prefs/incognito_mode_prefs.h

Index: chrome/browser/prefs/incognito_mode_prefs.h
diff --git a/chrome/browser/prefs/incognito_mode_prefs.h b/chrome/browser/prefs/incognito_mode_prefs.h
index 698250fc9f0c3512512c876deb26ceb231ec5a8d..d7d8d29160fb4dc244e3721709efc1d3e8bb723c 100644
--- a/chrome/browser/prefs/incognito_mode_prefs.h
+++ b/chrome/browser/prefs/incognito_mode_prefs.h
@@ -7,10 +7,13 @@
 
 #include "base/basictypes.h"
 
-class CommandLine;
 class PrefService;
 class Profile;
 
+namespace base {
+class CommandLine;
+}
+
 namespace user_prefs {
 class PrefRegistrySyncable;
 }
@@ -52,7 +55,7 @@ class IncognitoModePrefs {
   static bool IntToAvailability(int in_value, Availability* out_value);
 
   // Returns true if the browser should start in incognito mode.
-  static bool ShouldLaunchIncognito(const CommandLine& command_line,
+  static bool ShouldLaunchIncognito(const base::CommandLine& command_line,
                                     const PrefService* prefs);
 
   // Returns true if |profile| can open a new Browser. This checks the incognito