Move CommandLine to base namespace.

chrome/browser/chromeos/login/chrome_restart_request.h

Index: chrome/browser/chromeos/login/chrome_restart_request.h
diff --git a/chrome/browser/chromeos/login/chrome_restart_request.h b/chrome/browser/chromeos/login/chrome_restart_request.h
index 7e0311c489d5d027970f08fb58cdbe0ea1c5335b..b9c9ba1f71bdfbb4f6d4b04296f8cc002d73b5b1 100644
--- a/chrome/browser/chromeos/login/chrome_restart_request.h
+++ b/chrome/browser/chromeos/login/chrome_restart_request.h
@@ -7,17 +7,20 @@
 
 #include <string>
 
-class CommandLine;
 class GURL;
 
+namespace base {
+class CommandLine;
+}
+
 namespace chromeos {
 
 // Returns the command line string to be used for the OTR process. Also modifies
 // the given command line.
 std::string GetOffTheRecordCommandLine(
     const GURL& start_url,
-    const CommandLine& base_command_line,
-    CommandLine* command_line);
+    const base::CommandLine& base_command_line,
+    base::CommandLine* command_line);
 
 // Request session manager to restart chrome with a new command line.
 void RestartChrome(const std::string& command_line);