Move command handling and updating off Browser and onto a helper object.

chrome/browser/ui/webui/print_preview/print_preview_ui_browsertest.cc

Index: chrome/browser/ui/webui/print_preview/print_preview_ui_browsertest.cc
===================================================================
--- chrome/browser/ui/webui/print_preview/print_preview_ui_browsertest.cc	(revision 144460)
+++ chrome/browser/ui/webui/print_preview/print_preview_ui_browsertest.cc	(working copy)
@@ -32,7 +32,7 @@
     ui_test_utils::WindowedNotificationObserver observer(
         content::NOTIFICATION_WEB_CONTENTS_TITLE_UPDATED,
         content::NotificationService::AllSources());
-    browser()->ExecuteCommand(IDC_PRINT);
+    chrome::ExecuteCommand(browser(), IDC_PRINT);
     observer.Wait();
   }
 };
@@ -41,32 +41,30 @@
   // We start off at about:blank page.
   // Make sure there is 1 tab and print is enabled.
   ASSERT_EQ(1, browser()->tab_count());
-  ASSERT_TRUE(browser()->command_updater()->IsCommandEnabled(IDC_PRINT));
 
+  ASSERT_TRUE(chrome::IsCommandEnabled(browser(), IDC_PRINT));
+
   // Make sure advanced print command (Ctrl+Shift+p) is enabled.
-  ASSERT_TRUE(
-      browser()->command_updater()->IsCommandEnabled(IDC_ADVANCED_PRINT));
+  ASSERT_TRUE(chrome::IsCommandEnabled(browser(), IDC_ADVANCED_PRINT));
 
   // Create print preview tab.
   Print();
 
   // Make sure print is disabled.
-  ASSERT_FALSE(browser()->command_updater()->IsCommandEnabled(IDC_PRINT));
+  ASSERT_FALSE(chrome::IsCommandEnabled(browser(), IDC_PRINT));
 
   // Make sure advanced print command (Ctrl+Shift+p) is enabled.
-  ASSERT_TRUE(
-      browser()->command_updater()->IsCommandEnabled(IDC_ADVANCED_PRINT));
+  ASSERT_TRUE(chrome::IsCommandEnabled(browser(), IDC_ADVANCED_PRINT));
 
   content::TestNavigationObserver reload_observer(
       content::NotificationService::AllSources());
   chrome::Reload(browser(), CURRENT_TAB);
   reload_observer.Wait();
 
-  ASSERT_TRUE(browser()->command_updater()->IsCommandEnabled(IDC_PRINT));
+  ASSERT_TRUE(chrome::IsCommandEnabled(browser(), IDC_PRINT));
 
   // Make sure advanced print command (Ctrl+Shift+p) is enabled.
-  ASSERT_TRUE(
-      browser()->command_updater()->IsCommandEnabled(IDC_ADVANCED_PRINT));
+  ASSERT_TRUE(chrome::IsCommandEnabled(browser(), IDC_ADVANCED_PRINT));
 }
 
 }  // namespace