Mac InfoBar: Use cross platform infobar classes

chrome/browser/infobars/infobar_container.cc

Index: chrome/browser/infobars/infobar_container.cc
diff --git a/chrome/browser/infobars/infobar_container.cc b/chrome/browser/infobars/infobar_container.cc
index 0ae38e0d90c20a0edfddbc2c4b75cda4ac65fd1a..3c8660c81eadf0d173db5525e7d14271fe93e909 100644
--- a/chrome/browser/infobars/infobar_container.cc
+++ b/chrome/browser/infobars/infobar_container.cc
@@ -4,9 +4,6 @@
 
 #include "build/build_config.h"
 
-// TODO(pkasting): Port Mac to use this.
-#if defined(TOOLKIT_VIEWS) || defined(TOOLKIT_GTK) || defined(OS_ANDROID)
-
 #include "chrome/browser/infobars/infobar_container.h"
 
 #include <algorithm>
@@ -235,5 +232,3 @@ int InfoBarContainer::ArrowTargetHeightForInfoBar(size_t infobar_index) const {
       (InfoBar::kDefaultArrowTargetHeight - top_arrow_target_height_) *
           first_infobar_animation.GetCurrentValue());
 }
-
-#endif  // TOOLKIT_VIEWS || defined(TOOLKIT_GTK) || defined(OS_ANDROID)