MacViews: Add stubs for toolkit-views BrowserActionTestUtil functions for Mac

chrome/browser/extensions/browser_action_test_util.h

Index: chrome/browser/extensions/browser_action_test_util.h
diff --git a/chrome/browser/extensions/browser_action_test_util.h b/chrome/browser/extensions/browser_action_test_util.h
index f1554d91ca8fa6800c68da9d2586da9cdb9ed9b6..fe876b0a4a14b3d2aafff6fda3e0a37dbc556e70 100644
--- a/chrome/browser/extensions/browser_action_test_util.h
+++ b/chrome/browser/extensions/browser_action_test_util.h
@@ -29,13 +29,11 @@ class BrowserActionTestUtil {
   // Returns the number of browser action currently visible.
   int VisibleBrowserActions();
 
-#if defined(TOOLKIT_VIEWS)
   // Returns the ExtensionAction for the given index.
   ExtensionAction* GetExtensionAction(int index);
 
   // Inspects the extension popup for the action at the given index.
   void InspectPopup(int index);
-#endif
 
   // Returns whether the browser action at |index| has a non-null icon. Note
   // that the icon is loaded asynchronously, in which case you can wait for it