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

chrome/browser/ui/cocoa/omnibox/omnibox_view_mac_unittest.mm

Index: chrome/browser/ui/cocoa/omnibox/omnibox_view_mac_unittest.mm
diff --git a/chrome/browser/ui/cocoa/omnibox/omnibox_view_mac_unittest.mm b/chrome/browser/ui/cocoa/omnibox/omnibox_view_mac_unittest.mm
index 3a3b8d7b97d64b88c1c0a88acdef8769fd44e5a4..6b1416fb080e86d1a67b60271ee548751101eeee 100644
--- a/chrome/browser/ui/cocoa/omnibox/omnibox_view_mac_unittest.mm
+++ b/chrome/browser/ui/cocoa/omnibox/omnibox_view_mac_unittest.mm
@@ -89,10 +89,13 @@ class TestingOmniboxEditController : public OmniboxEditController {
   }
   virtual ~TestingOmniboxEditController() {}
 
+ protected:
   // Overridden from OmniboxEditController:
   virtual void Update(const content::WebContents* contents) OVERRIDE {}
   virtual void OnChanged() OVERRIDE {}
   virtual void OnSetFocus() OVERRIDE {}
+  virtual void ShowURL() OVERRIDE {}
+  virtual void HideURL() OVERRIDE {}
   virtual InstantController* GetInstant() OVERRIDE { return NULL; }
   virtual content::WebContents* GetWebContents() OVERRIDE { return NULL; }
   virtual ToolbarModel* GetToolbarModel() OVERRIDE { return toolbar_model_; }