[Athena] Hack to display favicons for web activities in overview mode

athena/resource_manager/resource_manager_unittest.cc

Index: athena/resource_manager/resource_manager_unittest.cc
diff --git a/athena/resource_manager/resource_manager_unittest.cc b/athena/resource_manager/resource_manager_unittest.cc
index ccc89f89c1729996998d971efb524bcde85ce5cf..5f35d57f9d34aa453e7d4cbc7a02b63c991c2665 100644
--- a/athena/resource_manager/resource_manager_unittest.cc
+++ b/athena/resource_manager/resource_manager_unittest.cc
@@ -51,6 +51,7 @@ class TestActivity : public Activity,
   virtual void Init() OVERRIDE {}
   virtual SkColor GetRepresentativeColor() const OVERRIDE { return 0; }
   virtual base::string16 GetTitle() const OVERRIDE { return title_; }
+  virtual gfx::ImageSkia GetIcon() const OVERRIDE { return gfx::ImageSkia(); }
   virtual bool UsesFrame() const OVERRIDE { return true; }
   virtual views::View* GetContentsView() OVERRIDE { return view_; }
   virtual views::Widget* CreateWidget() OVERRIDE { return NULL; }