Use Widget frame and WidgetDelegate in ActvityWidget

athena/test/sample_activity.cc

Index: athena/test/sample_activity.cc
diff --git a/athena/test/sample_activity.cc b/athena/test/sample_activity.cc
index 9f2da73e674f342df03fb29b18d0d69d1f9c6ba5..d4f8ad95cbb0ef05668d836a0b77e76ebdd332f5 100644
--- a/athena/test/sample_activity.cc
+++ b/athena/test/sample_activity.cc
@@ -29,14 +29,18 @@ athena::ActivityViewModel* SampleActivity::GetActivityViewModel() {
 void SampleActivity::Init() {
 }
 
-SkColor SampleActivity::GetRepresentativeColor() {
+SkColor SampleActivity::GetRepresentativeColor() const {
   return color_;
 }
 
-base::string16 SampleActivity::GetTitle() {
+base::string16 SampleActivity::GetTitle() const {
   return title_;
 }
 
+bool SampleActivity::UsesFrame() const {
+  return true;
+}
+
 views::View* SampleActivity::GetContentsView() {
   if (!contents_view_) {
     contents_view_ = new views::View;