MacViewsBrowser: Fix omnibox crash due to failed DCHECK.

ui/views/controls/textfield/textfield_test_api.h

Index: ui/views/controls/textfield/textfield_test_api.h
diff --git a/ui/views/controls/textfield/textfield_test_api.h b/ui/views/controls/textfield/textfield_test_api.h
index 4505b71290700891866ea2a4820c8514f8cf2cda..285a64898f51474d42255ec3aaae53d962e62f20 100644
--- a/ui/views/controls/textfield/textfield_test_api.h
+++ b/ui/views/controls/textfield/textfield_test_api.h
@@ -33,6 +33,18 @@ class TextfieldTestApi {
     return textfield_->touch_selection_controller_.get();
   }
 
+  ui::TextEditCommand scheduled_text_edit_command() const {
+    return textfield_->scheduled_text_edit_command_;
+  }
+
+  bool OnKeyPressed(const ui::KeyEvent& event) {

[msw, 2016/08/26 07:09:43]

Can tests instead call Textfield/View::OnKeyEvent(KeyEvent* event) or something
similar, perhaps by static_cast'ing if really needed? It'd be nice to avoid test
api for simply posting events (versus overriding these methods).

[karandeepb, 2016/08/26 10:05:16]

Done. 

+    return textfield_->OnKeyPressed(event);
+  }
+
+  bool OnKeyReleased(const ui::KeyEvent& event) {
+    return textfield_->OnKeyReleased(event);
+  }
+
  private:
   Textfield* textfield_;