Removes AshTestBase::SupportsHostWindowResize

ash/app_list/app_list_presenter_delegate_unittest.cc

Index: ash/app_list/app_list_presenter_delegate_unittest.cc
diff --git a/ash/app_list/app_list_presenter_delegate_unittest.cc b/ash/app_list/app_list_presenter_delegate_unittest.cc
index b36459fad12982a6303b42d6df0288a532c747ac..bb72e176ab8dd794806596c5d37a9465c8c19859 100644
--- a/ash/app_list/app_list_presenter_delegate_unittest.cc
+++ b/ash/app_list/app_list_presenter_delegate_unittest.cc
@@ -150,10 +150,6 @@ TEST_F(AppListPresenterDelegateTest, NonPrimaryDisplay) {
 // Tests opening the app launcher on a tiny display that is too small to contain
 // it.
 TEST_F(AppListPresenterDelegateTest, TinyDisplay) {
-  // UpdateDisplay is not supported in this case, so just skip the test.
-  if (!SupportsHostWindowResize())
-    return;
-
   // Set up a screen with a tiny display (height smaller than the app list).
   UpdateDisplay("400x300");