AppModelBuilder to athena.

athena/test/sample_activity_factory.cc

Index: athena/test/sample_activity_factory.cc
diff --git a/athena/test/sample_activity_factory.cc b/athena/test/sample_activity_factory.cc
index 50deaf705aeaf8d19e68a3537c59185ddebfea65..218bc21afc1504f6263024a233f8757cebf97a22 100644
--- a/athena/test/sample_activity_factory.cc
+++ b/athena/test/sample_activity_factory.cc
@@ -17,6 +17,9 @@ namespace test {
 namespace {
 const SkColor kDefaultColor = SK_ColorRED;
 const SkColor kDefaultContentColor = SK_ColorGREEN;
+
+const SkColor kDefaultAppColor = SK_ColorYELLOW;
+const SkColor kDefaultAppContentColor = SK_ColorBLUE;
 }
 
 SampleActivityFactory::SampleActivityFactory() {}
@@ -30,5 +33,12 @@ Activity* SampleActivityFactory::CreateWebActivity(
       kDefaultColor, kDefaultContentColor, base::UTF8ToUTF16(url.spec()));
 }
 
+Activity* SampleActivityFactory::CreateAppActivity(
+    content::BrowserContext* browser_context,
+    const std::string& app_id) {
+  return new SampleActivity(
+      kDefaultAppColor, kDefaultAppContentColor, base::UTF8ToUTF16(app_id));
+}
+
 }  // namespace test
 }  // namespace athena