Remove dependency from infobars component to the embedder

chrome/browser/infobars/infobar_service.cc

Index: chrome/browser/infobars/infobar_service.cc
diff --git a/chrome/browser/infobars/infobar_service.cc b/chrome/browser/infobars/infobar_service.cc
index 5037cc8fc008ef47c621188a110ac1089b77caf1..01b9d68859a0e3d4c07875133e527a4fe07bf53d 100644
--- a/chrome/browser/infobars/infobar_service.cc
+++ b/chrome/browser/infobars/infobar_service.cc
@@ -74,6 +74,10 @@ int InfoBarService::GetActiveEntryID() {
   return active_entry ? active_entry->GetUniqueID() : 0;
 }
 
+const infobars::InfoBarConstants& InfoBarService::GetInfoBarConstants() const {
+  return kChromeInfoBarConstants;
+}
+
 void InfoBarService::NotifyInfoBarAdded(InfoBar* infobar) {
   InfoBarManager::NotifyInfoBarAdded(infobar);
   // TODO(droger): Remove the notifications and have listeners change to be