Disable first run for the New Tab Cold perf test.

BUG=17668

TEST=Run the test

Review URL: http://codereview.chromium.org/160108

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@21854 0039d316-1c4b-4281-b951-d872f2087c98

2 files changed, 14 insertions, 1 deletions

diff --git a/chrome/browser/dom_ui/new_tab_ui.cc b/chrome/browser/dom_ui/new_tab_ui.cc
index deb9683..5ccd3fe 100644
--- a/chrome/browser/dom_ui/new_tab_ui.cc
+++ b/chrome/browser/dom_ui/new_tab_ui.cc
@@ -1498,6 +1498,9 @@ NewTabUI::NewTabUI(TabContents* contents)
     NewTabHTMLSource::set_first_view(false);
   }
 
+  if (NewTabUI::FirstRunDisabled())
+    NewTabHTMLSource::set_first_run(false);
+
   tab_contents()->render_view_host()->set_paint_observer(new PaintTimer);
 
   if (GetProfile()->IsOffTheRecord()) {
@@ -1599,3 +1602,9 @@ bool NewTabUI::WebResourcesEnabled() {
   const CommandLine* command_line = CommandLine::ForCurrentProcess();
   return command_line->HasSwitch(switches::kEnableWebResources);
 }
+
+// static
+bool NewTabUI::FirstRunDisabled() {
+  const CommandLine* command_line = CommandLine::ForCurrentProcess();
+  return command_line->HasSwitch(switches::kDisableNewTabFirstRun);
+}
diff --git a/chrome/browser/dom_ui/new_tab_ui.h b/chrome/browser/dom_ui/new_tab_ui.h
index fde0fe2..07f27ca 100644
--- a/chrome/browser/dom_ui/new_tab_ui.h
+++ b/chrome/browser/dom_ui/new_tab_ui.h
@@ -31,7 +31,11 @@ class NewTabUI : public DOMUI,
   // Whether we should disable the web resources backend service
   static bool WebResourcesEnabled();
 
- private:
+  // Whether we should disable the first run notification based on the command
+  // line switch.
+  static bool FirstRunDisabled();
+
+private:
   void Observe(NotificationType type,
                const NotificationSource& source,
                const NotificationDetails& details);