athena: Bundle a static background image with athena.

athena/main/placeholder.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/placeholder.h"
 
 #include "athena/activity/public/activity_factory.h"
 #include "athena/activity/public/activity_manager.h"
 #include "athena/screen/public/screen_manager.h"
-#include "base/memory/scoped_ptr.h"
-#include "third_party/skia/include/core/SkColor.h"
-#include "ui/gfx/canvas.h"
+#include "grit/athena_resources.h"
+#include "ui/base/resource/resource_bundle.h"
 #include "ui/gfx/image/image_skia.h"
-#include "ui/views/painter.h"
 
 void CreateTestPages(content::BrowserContext* browser_context) {
   const char* kTestURLs[] = {
       "http://cyan.bikeshed.com", "https://news.google.com",
       "http://blue.bikeshed.com", "https://www.google.com",
   };
   for (size_t i = 0; i < arraysize(kTestURLs); ++i) {
     athena::ActivityManager::Get()->AddActivity(
         athena::ActivityFactory::Get()->CreateWebActivity(browser_context,
                                                           GURL(kTestURLs[i])));
   }
 }
 
 void SetupBackgroundImage() {
-  gfx::Size size(200, 200);
-  gfx::Canvas canvas(size, 1.0f, true);
-  scoped_ptr<views::Painter> painter(
-      views::Painter::CreateVerticalGradient(SK_ColorBLUE, SK_ColorCYAN));
-  painter->Paint(&canvas, size);
-  athena::ScreenManager::Get()->SetBackgroundImage(
-      gfx::ImageSkia(canvas.ExtractImageRep()));
+  const gfx::ImageSkia wallpaper = *ui::ResourceBundle::GetSharedInstance()
+      .GetImageSkiaNamed(IDR_ATHENA_BACKGROUND);
+  athena::ScreenManager::Get()->SetBackgroundImage(wallpaper);
 }