Implement UI automation on the Mac....

chrome/test/ui_test_utils_mac.cc

Index: chrome/test/ui_test_utils_mac.cc
===================================================================
--- chrome/test/ui_test_utils_mac.cc	(revision 45975)
+++ chrome/test/ui_test_utils_mac.cc	(working copy)
@@ -8,6 +8,17 @@
 
 namespace ui_test_utils {
 
+// Details on why these are unimplemented: ViewIDs are defined in
+// chrome/browser/view_ids.h.  For Cocoa (unlike Views GTK) we don't
+// associate ViewIDs with NSViews.
+//
+// Here's an idea on how to implement.
+// - associate the correct ViewID with an NSView on construction (the most work)
+// - create a mapping table, such as chrome/browser/gtk/view_id_util.h
+// - IsViewFocused() then becomes
+//    [browser->window()->GetNativeHandle() firstResponder]
+// - ClickOnView() becomes a normal NSMouseDown event forge at the right coords
+
 bool IsViewFocused(const Browser* browser, ViewID vid) {
   NOTIMPLEMENTED();
   return false;