Fix running gn gen for //ui/* targets on iOS.

ui/base/BUILD.gn

Index: ui/base/BUILD.gn
diff --git a/ui/base/BUILD.gn b/ui/base/BUILD.gn
index 824fe9ba075b210fc605225c552b1269122fdc85..643edda6433d5fa8ad84d1353e3f4b77797963da 100644
--- a/ui/base/BUILD.gn
+++ b/ui/base/BUILD.gn
@@ -696,7 +696,6 @@ test("ui_base_unittests") {
       "test/data/resource.h",
       "text/bytes_formatting_unittest.cc",
       "touch/selection_bound_unittest.cc",
-      "view_prop_unittest.cc",
       "webui/web_ui_util_unittest.cc",
     ]
   }
@@ -774,8 +773,8 @@ test("ui_base_unittests") {
     ]
   }
 
-  if (!is_win || !use_aura) {
-    sources -= [ "view_prop_unittest.cc" ]
+  if (is_win && use_aura) {
+    sources += [ "view_prop_unittest.cc" ]
   }

[sadrul, 2015/07/23 15:29:10]

This doesn't look right. |is_win| implies |use_aura|. Can you try just 'if
(use_aura)' here instead (since we use view_prop on all aura platforms)?

[sdefresne, 2015/07/25 18:04:31]

Sure, Done. In the previous patch just flipped the old conditional when moving
from substractive to additive pattern without checking whether the condition
made sense or not, thank you for noticing this old conditional.

 
   if (is_android) {