Get rid of native-desktop-only BrowserList:: iterator methods in tests.

chrome/browser/fast_shutdown_browsertest.cc

Index: chrome/browser/fast_shutdown_browsertest.cc
diff --git a/chrome/browser/fast_shutdown_browsertest.cc b/chrome/browser/fast_shutdown_browsertest.cc
index bab4848539485c55612b230d3f0677c8edfb6d88..f4d549882741e2139e9ff32ed11bf46bcbf1c0a2 100644
--- a/chrome/browser/fast_shutdown_browsertest.cc
+++ b/chrome/browser/fast_shutdown_browsertest.cc
@@ -8,10 +8,11 @@
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_commands.h"
+#include "chrome/browser/ui/browser_iterator.h"
 #include "chrome/browser/ui/browser_list.h"
 #include "chrome/browser/ui/tabs/tab_strip_model.h"
-#include "chrome/common/chrome_switches.h"
 #include "chrome/common/chrome_notification_types.h"
+#include "chrome/common/chrome_switches.h"
 #include "chrome/test/base/in_process_browser_test.h"
 #include "chrome/test/base/ui_test_utils.h"
 #include "content/public/browser/browser_thread.h"
@@ -54,9 +55,9 @@ IN_PROC_BROWSER_TEST_F(FastShutdown, DISABLED_SlowTermination) {
 
   // Close the new window, removing the one and only beforeunload handler.
   ASSERT_EQ(2u, BrowserList::size());
-  BrowserList::const_iterator i = BrowserList::begin();
-  ++i;
-  chrome::CloseWindow(*i);
+  chrome::BrowserIterator it;
+  it.Next();
+  chrome::CloseWindow(*it);
 
   // Need to wait for the renderer process to shutdown to ensure that we got the
   // set cookies IPC.