Allow WebUI Tests to use preLoad in HtmlDialogUI.

chrome/chrome_tests.gypi

Index: chrome/chrome_tests.gypi
diff --git a/chrome/chrome_tests.gypi b/chrome/chrome_tests.gypi
index e643df38afb8a985a48a7309a3af8d0f8496da46..ed5d3d0cd6eca827d6a5162d7d014fe83ff2c315 100644
--- a/chrome/chrome_tests.gypi
+++ b/chrome/chrome_tests.gypi
@@ -209,6 +209,8 @@
         'test/base/chrome_test_suite.h',
         'test/base/in_process_browser_test.cc',
         'test/base/in_process_browser_test.h',
+        'test/base/js_injection_ready_observer.cc',
+        'test/base/js_injection_ready_observer.h',
         'test/base/model_test_utils.cc',
         'test/base/model_test_utils.h',
         'test/base/profile_mock.cc',
@@ -221,6 +223,8 @@
         'test/base/test_launcher_utils.h',
         'test/base/test_location_bar.cc',
         'test/base/test_location_bar.h',
+        'test/base/test_navigation_observer.cc',
+        'test/base/test_navigation_observer.h',
         'test/base/test_switches.cc',
         'test/base/test_switches.h',
         'test/base/test_tab_strip_model_observer.cc',
@@ -246,8 +250,6 @@
         'test/base/ui_test_utils_win.cc',
         'test/base/values_test_util.cc',
         'test/base/values_test_util.h',
-        'test/test_navigation_observer.cc',
-        'test/test_navigation_observer.h',
         # TODO:  these should live here but are currently used by
         # production code code in libbrowser (in chrome.gyp).
         #'../content/browser/net/url_request_mock_http_job.cc',