browser: Start moving application_lifetime.h functions into chrome namespace.

chrome/browser/ui/browser_list_impl.cc

Index: chrome/browser/ui/browser_list_impl.cc
diff --git a/chrome/browser/ui/browser_list_impl.cc b/chrome/browser/ui/browser_list_impl.cc
index 178f40849f703f0f8574b942739130192d9aeb1a..071ca957259d9ff112eff096256f0869e421774d 100644
--- a/chrome/browser/ui/browser_list_impl.cc
+++ b/chrome/browser/ui/browser_list_impl.cc
@@ -91,8 +91,8 @@ void BrowserListImpl::RemoveBrowser(Browser* browser) {
     // to call ProfileManager::ShutdownSessionServices() as part of the
     // shutdown, because Browser::WindowClosing() already makes sure that the
     // SessionService is created and notified.
-    browser::NotifyAppTerminating();
-    browser::OnAppExiting();
+    chrome::NotifyAppTerminating();
+    chrome::OnAppExiting();
   }
 }