Introduces ActivityFactory for SampleActivity.

athena/test/sample_activity.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "athena/main/sample_activity.h"
+#include "athena/test/sample_activity.h"
 
 #include "ui/aura/window.h"
 
+namespace athena {
+namespace test {
+
 SampleActivity::SampleActivity(SkColor color,
                                SkColor content_color,
                                const std::string& title)
     : color_(color), content_color_(content_color), title_(title) {
 }
 
 SampleActivity::~SampleActivity() {
 }
 
 athena::ActivityViewModel* SampleActivity::GetActivityViewModel() {
   return this;
 }
 
 SkColor SampleActivity::GetRepresentativeColor() {
   return color_;
 }
 
 std::string SampleActivity::GetTitle() {
   return title_;
 }
 
 aura::Window* SampleActivity::GetNativeWindow() {
   if (!window_) {
     window_.reset(new aura::Window(NULL));
     window_->Init(aura::WINDOW_LAYER_SOLID_COLOR);
     window_->layer()->SetColor(content_color_);
   }
   return window_.get();
 }
+
+}  // namespace test
+}  // namespace athena