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

chrome/browser/profiles/profile_manager.cc

Index: chrome/browser/profiles/profile_manager.cc
diff --git a/chrome/browser/profiles/profile_manager.cc b/chrome/browser/profiles/profile_manager.cc
index 5a5f94bfc773b7e78d0e73171f62a3de2dd7a37f..cf1aaa1fb69106ad653fd4a6f311634ec91dd6f2 100644
--- a/chrome/browser/profiles/profile_manager.cc
+++ b/chrome/browser/profiles/profile_manager.cc
@@ -792,7 +792,7 @@ void ProfileManager::InitProfileUserPrefs(Profile* profile) {
   if (!profile->GetPrefs()->HasPrefPath(prefs::kProfileName))
     profile->GetPrefs()->SetString(prefs::kProfileName, profile_name);
 
-  CommandLine* command_line = CommandLine::ForCurrentProcess();
+  base::CommandLine* command_line = base::CommandLine::ForCurrentProcess();
   bool force_supervised_user_id =
       command_line->HasSwitch(switches::kSupervisedUserId);
   if (force_supervised_user_id) {
@@ -834,7 +834,8 @@ void ProfileManager::Observe(
   if (type == chrome::NOTIFICATION_LOGIN_USER_CHANGED) {
     logged_in_ = true;
 
-    const CommandLine& command_line = *CommandLine::ForCurrentProcess();
+    const base::CommandLine& command_line =
+        *base::CommandLine::ForCurrentProcess();
     if (!command_line.HasSwitch(switches::kTestType)) {
       // If we don't have a mounted profile directory we're in trouble.
       // TODO(davemoore) Once we have better api this check should ensure that