a11y: Add a11y information to views::Tab and manually ignore its a11y children.

ui/accessibility/BUILD.gn

Index: ui/accessibility/BUILD.gn
diff --git a/ui/accessibility/BUILD.gn b/ui/accessibility/BUILD.gn
index e903febcd23995f517ea5c50e054d7b5268ddca5..3d7162d5de843dedc9d2e626dea49ae6f5d2a571 100644
--- a/ui/accessibility/BUILD.gn
+++ b/ui/accessibility/BUILD.gn
@@ -72,6 +72,9 @@ component("accessibility") {
       "AppKit.framework",
       "Foundation.framework",
     ]
+    deps = [
+      "//chrome/app:generated_resources",

[tapted, 2017/01/03 00:29:27]

//ui can't depend on stuff in //chrome :( - but see below this might be easy to
fix

[Patti Lor, 2017/01/06 02:02:29]

Acknowledged.

+    ]
   }
 
   if (use_atk) {