[OriginChip] Add animations for the hiding and showing of the chip.

chrome/browser/ui/toolbar/toolbar_model_impl.cc

Index: chrome/browser/ui/toolbar/toolbar_model_impl.cc
diff --git a/chrome/browser/ui/toolbar/toolbar_model_impl.cc b/chrome/browser/ui/toolbar/toolbar_model_impl.cc
index eac490966b8e6216b50bde7db328f8896e53fd3c..1a36ba21fe52b47eebfba6895724412274385f2d 100644
--- a/chrome/browser/ui/toolbar/toolbar_model_impl.cc
+++ b/chrome/browser/ui/toolbar/toolbar_model_impl.cc
@@ -103,6 +103,10 @@ base::string16 ToolbarModelImpl::GetText() const {
   if (WouldOmitURLDueToOriginChip())
     return base::string16();
 
+  return GetFormattedURL();
+}
+
+base::string16 ToolbarModelImpl::GetFormattedURL() const {
   std::string languages;  // Empty if we don't have a |navigation_controller|.
   Profile* profile = GetProfile();
   if (profile)