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

chrome/browser/ui/startup/autolaunch_prompt_win.cc

Index: chrome/browser/ui/startup/autolaunch_prompt_win.cc
diff --git a/chrome/browser/ui/startup/autolaunch_prompt_win.cc b/chrome/browser/ui/startup/autolaunch_prompt_win.cc
index 01e0401aca04680cb72f4d296cd28f1f849aa5c5..9b7e23d504e120ec648497cec840a9fc0f3ce6b1 100644
--- a/chrome/browser/ui/startup/autolaunch_prompt_win.cc
+++ b/chrome/browser/ui/startup/autolaunch_prompt_win.cc
@@ -152,7 +152,8 @@ bool ShowAutolaunchPrompt(Browser* browser) {
   if (infobar_shown >= kMaxTimesToShowInfoBar)
     return false;
 
-  const CommandLine& command_line = *CommandLine::ForCurrentProcess();
+  const base::CommandLine& command_line =
+      *base::CommandLine::ForCurrentProcess();
   if (!command_line.HasSwitch(switches::kAutoLaunchAtStartup) &&
       !first_run::IsChromeFirstRun()) {
     return false;