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

chrome/browser/tab_contents/view_source_browsertest.cc

Index: chrome/browser/tab_contents/view_source_browsertest.cc
===================================================================
--- chrome/browser/tab_contents/view_source_browsertest.cc	(revision 144460)
+++ chrome/browser/tab_contents/view_source_browsertest.cc	(working copy)
@@ -5,6 +5,7 @@
 #include "base/utf_string_conversions.h"
 #include "chrome/app/chrome_command_ids.h"
 #include "chrome/browser/ui/browser.h"
+#include "chrome/browser/ui/browser_commands.h"
 #include "chrome/common/url_constants.h"
 #include "chrome/test/base/in_process_browser_test.h"
 #include "chrome/test/base/ui_test_utils.h"
@@ -65,7 +66,7 @@
   GURL url(test_server()->GetURL(kTestHtml));
   ui_test_utils::NavigateToURL(browser(), url);
 
-  EXPECT_TRUE(browser()->command_updater()->IsCommandEnabled(IDC_VIEW_SOURCE));
+  EXPECT_TRUE(chrome::CanViewSource(browser()));
 }
 
 // Make sure that when looking at the page source, we can't select "View Source"
@@ -80,5 +81,5 @@
       test_server()->GetURL(kTestHtml).spec());
   ui_test_utils::NavigateToURL(browser(), url_viewsource);
 
-  EXPECT_FALSE(browser()->command_updater()->IsCommandEnabled(IDC_VIEW_SOURCE));
+  EXPECT_FALSE(chrome::CanViewSource(browser()));
 }