Rename ExtensionCommand* to Command* within the extension namespace.

chrome/browser/prefs/browser_prefs.cc

Index: chrome/browser/prefs/browser_prefs.cc
===================================================================
--- chrome/browser/prefs/browser_prefs.cc	(revision 138284)
+++ chrome/browser/prefs/browser_prefs.cc	(working copy)
@@ -15,7 +15,7 @@
 #include "chrome/browser/custom_handlers/protocol_handler_registry.h"
 #include "chrome/browser/debugger/devtools_window.h"
 #include "chrome/browser/download/download_prefs.h"
-#include "chrome/browser/extensions/api/commands/extension_command_service.h"
+#include "chrome/browser/extensions/api/commands/command_service.h"
 #include "chrome/browser/extensions/apps_promo.h"
 #include "chrome/browser/extensions/component_loader.h"
 #include "chrome/browser/extensions/extension_prefs.h"
@@ -178,8 +178,8 @@
   chrome_browser_net::HttpServerPropertiesManager::RegisterPrefs(user_prefs);
   chrome_browser_net::Predictor::RegisterUserPrefs(user_prefs);
   DownloadPrefs::RegisterUserPrefs(user_prefs);
+  extensions::CommandService::RegisterUserPrefs(user_prefs);
   extensions::ComponentLoader::RegisterUserPrefs(user_prefs);
-  extensions::ExtensionCommandService::RegisterUserPrefs(user_prefs);
   ExtensionPrefs::RegisterUserPrefs(user_prefs);
   ExtensionSettingsHandler::RegisterUserPrefs(user_prefs);
   ExtensionWebUI::RegisterUserPrefs(user_prefs);