Add initial home card impl.

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/screen/public/screen_manager.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/strings/utf_string_conversions.h"
 #include "third_party/skia/include/core/SkColor.h"
 #include "ui/gfx/canvas.h"
 #include "ui/gfx/image/image_skia.h"
 #include "ui/views/background.h"
 #include "ui/views/controls/label.h"
 #include "ui/views/painter.h"
 #include "ui/views/widget/widget.h"
 
 void CreateTestWindows() {
+  const int kAppWindowBackgroundColor = 0xFFDDDDDD;
   views::Widget* test_app_widget = new views::Widget;
   // Athena doesn't have frame yet.
   views::Widget::InitParams params(
       views::Widget::InitParams::TYPE_WINDOW_FRAMELESS);
   params.context = athena::ScreenManager::Get()->GetContext();
   test_app_widget->Init(params);
   views::Label* label = new views::Label;
   label->SetText(base::ASCIIToUTF16("AppWindow"));
   label->set_background(
-      views::Background::CreateSolidBackground(SK_ColorWHITE));
+      views::Background::CreateSolidBackground(kAppWindowBackgroundColor));
   test_app_widget->SetContentsView(label);
   test_app_widget->Show();
 }
 
 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()));
 }