Fix Chrome OS virtual keyboard accessibility

chrome/test/BUILD.gn

Index: chrome/test/BUILD.gn
diff --git a/chrome/test/BUILD.gn b/chrome/test/BUILD.gn
index c62ecb18ccba4801e04fb5f0890eae23ed900275..a7b3d5b12e2d757fa03cff1e06f0bb677f530881 100644
--- a/chrome/test/BUILD.gn
+++ b/chrome/test/BUILD.gn
@@ -2121,6 +2121,9 @@ test("browser_tests") {
         deps += [ ":test_support_applist_ash" ]
       }
     }
+    if (use_aura) {
+      sources += [ "../browser/ui/aura/accessibility/automation_manager_aura_browsertest.cc" ]
+    }
     if (use_aura || toolkit_views) {
       deps += [ "//ui/events:test_support" ]
     }