Move CommandLine to base namespace.

chrome/browser/chrome_browser_field_trials.h

Index: chrome/browser/chrome_browser_field_trials.h
diff --git a/chrome/browser/chrome_browser_field_trials.h b/chrome/browser/chrome_browser_field_trials.h
index bab7abaa8a640b3125b70f74ee9193cb2876834f..515b5149b03bff4b0d13a437cef6a29e46145db5 100644
--- a/chrome/browser/chrome_browser_field_trials.h
+++ b/chrome/browser/chrome_browser_field_trials.h
@@ -12,7 +12,7 @@ class PrefService;
 
 class ChromeBrowserFieldTrials {
  public:
-  explicit ChromeBrowserFieldTrials(const CommandLine& command_line);
+  explicit ChromeBrowserFieldTrials(const base::CommandLine& command_line);
   ~ChromeBrowserFieldTrials();
 
   // Called by the browser main sequence to set up Field Trials for this client.
@@ -24,7 +24,7 @@ class ChromeBrowserFieldTrials {
   // reported as used.
   void InstantiateDynamicTrials();
 
-  const CommandLine& parsed_command_line_;
+  const base::CommandLine& parsed_command_line_;
 
   DISALLOW_COPY_AND_ASSIGN(ChromeBrowserFieldTrials);
 };