Add human readable programmatic enum name/values to chrome.automation.

chrome/renderer/extensions/automation_internal_custom_bindings.h

Index: chrome/renderer/extensions/automation_internal_custom_bindings.h
diff --git a/chrome/renderer/extensions/automation_internal_custom_bindings.h b/chrome/renderer/extensions/automation_internal_custom_bindings.h
index 76b27dbf7103dfcd692b393e27a106a9e14b0e39..5ab6dafca5764e92772341edde5a6c5e593e4175 100644
--- a/chrome/renderer/extensions/automation_internal_custom_bindings.h
+++ b/chrome/renderer/extensions/automation_internal_custom_bindings.h
@@ -20,8 +20,14 @@ class AutomationInternalCustomBindings : public ObjectBackedNativeHandler {
   virtual ~AutomationInternalCustomBindings();
 
  private:
+  // Returns whether this extension has the "interact" permission set (either
+  // explicitly or implicitly after manifest parsing).
   void IsInteractPermitted(const v8::FunctionCallbackInfo<v8::Value>& args);
 
+  // Returns an object with bindings that will be added to the
+  // chrome.automation namespace.
+  void GetSchemaAdditions(const v8::FunctionCallbackInfo<v8::Value>& args);
+
   DISALLOW_COPY_AND_ASSIGN(AutomationInternalCustomBindings);
 };