Move CommandLine to base namespace.

content/browser/browser_main_loop.h

Index: content/browser/browser_main_loop.h
diff --git a/content/browser/browser_main_loop.h b/content/browser/browser_main_loop.h
index e04999b005d883d02a5d07252152b5b212d5e26a..8f8af82db2c3beb2bbc36a014c308702db4eae8b 100644
--- a/content/browser/browser_main_loop.h
+++ b/content/browser/browser_main_loop.h
@@ -11,9 +11,8 @@
 #include "content/browser/browser_process_sub_thread.h"
 #include "content/public/browser/browser_main_runner.h"
 
-class CommandLine;
-
 namespace base {
+class CommandLine;
 class FilePath;
 class HighResolutionTimerManager;
 class MessageLoop;
@@ -127,12 +126,12 @@ class CONTENT_EXPORT BrowserMainLoop {
 
   void MainMessageLoopRun();
 
-  void InitStartupTracing(const CommandLine& command_line);
+  void InitStartupTracing(const base::CommandLine& command_line);
   void EndStartupTracing(const base::FilePath& trace_file);
 
   // Members initialized on construction ---------------------------------------
   const MainFunctionParams& parameters_;
-  const CommandLine& parsed_command_line_;
+  const base::CommandLine& parsed_command_line_;
   int result_code_;
   // True if the non-UI threads were created.
   bool created_threads_;