Move CommandLine to base namespace.

chrome/browser/component_updater/pnacl/pnacl_component_installer.h

Index: chrome/browser/component_updater/pnacl/pnacl_component_installer.h
diff --git a/chrome/browser/component_updater/pnacl/pnacl_component_installer.h b/chrome/browser/component_updater/pnacl/pnacl_component_installer.h
index 822b0b5f96efa1074ae4cbd9a94c620379c4c9ab..ba5fd24c66ddef8860a268f343a78638cc557771 100644
--- a/chrome/browser/component_updater/pnacl/pnacl_component_installer.h
+++ b/chrome/browser/component_updater/pnacl/pnacl_component_installer.h
@@ -15,9 +15,8 @@
 #include "chrome/browser/component_updater/component_updater_service.h"
 #include "chrome/browser/component_updater/pnacl/pnacl_profile_observer.h"
 
-class CommandLine;
-
 namespace base {
+class CommandLine;
 class DictionaryValue;
 }
 
@@ -52,7 +51,7 @@ class PnaclComponentInstaller : public ComponentInstaller {
 
   // Register a PNaCl component for the first time.
   void RegisterPnaclComponent(ComponentUpdateService* cus,
-                              const CommandLine& command_line);
+                              const base::CommandLine& command_line);
 
   // Check the PNaCl version again and re-register with the component
   // updater service.