[Refactor] Move code for painting the window header for browser windows out of ash

ash/wm/header_painter_unittest.cc

-// Copyright 2013 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 "ash/wm/header_painter.h"
-
-#include "ash/shell.h"
-#include "ash/test/ash_test_base.h"
-#include "ash/wm/caption_buttons/frame_caption_button_container_view.h"
-#include "ash/wm/window_state.h"
-#include "base/memory/scoped_ptr.h"
-#include "grit/ash_resources.h"
-#include "ui/gfx/font_list.h"
-#include "ui/views/widget/widget.h"
-#include "ui/views/window/non_client_view.h"
-
-using ash::HeaderPainter;
-using views::NonClientFrameView;
-using views::Widget;
-
-namespace ash {
-
-class HeaderPainterTest : public ash::test::AshTestBase {
- public:
-  // Creates a test widget that owns its native widget.
-  Widget* CreateTestWidget() {
-    Widget* widget = new Widget;
-    Widget::InitParams params;
-    params.ownership = Widget::InitParams::WIDGET_OWNS_NATIVE_WIDGET;
-    params.context = CurrentContext();
-    widget->Init(params);
-    return widget;
-  }
-};
-
-// Ensure the title text is vertically aligned with the window icon.
-TEST_F(HeaderPainterTest, TitleIconAlignment) {
-  scoped_ptr<Widget> w(CreateTestWidget());
-  ash::FrameCaptionButtonContainerView container(w.get(),
-      ash::FrameCaptionButtonContainerView::MINIMIZE_ALLOWED);
-  views::View window_icon;
-  window_icon.SetBounds(0, 0, 16, 16);
-  w->SetBounds(gfx::Rect(0, 0, 500, 500));
-  w->Show();
-
-  gfx::FontList default_font_list;
-
-  // 1) Non-browser windows.
-  HeaderPainter non_browser_painter;
-  non_browser_painter.Init(HeaderPainter::STYLE_OTHER,
-      w.get(),
-      w->non_client_view()->frame_view(),
-      &window_icon,
-      &container);
-  non_browser_painter.LayoutHeader();
-  gfx::Rect non_browser_header_title_bounds =
-      non_browser_painter.GetTitleBounds(default_font_list);
-  EXPECT_EQ(window_icon.bounds().CenterPoint().y(),
-            non_browser_header_title_bounds.CenterPoint().y());
-
-  // 2) Non-maximized browser windows.
-  HeaderPainter browser_painter;
-  browser_painter.Init(HeaderPainter::STYLE_BROWSER,
-      w.get(),
-      w->non_client_view()->frame_view(),
-      &window_icon,
-      &container);
-  browser_painter.LayoutHeader();
-  gfx::Rect browser_header_title_bounds =
-      browser_painter.GetTitleBounds(default_font_list);
-  EXPECT_EQ(window_icon.bounds().CenterPoint().y(),
-            browser_header_title_bounds.CenterPoint().y());
-
-  // 3) Maximized browser windows.
-  w->Maximize();
-  browser_painter.LayoutHeader();
-  gfx::Rect maximized_browser_header_title_bounds =
-      browser_painter.GetTitleBounds(default_font_list);
-  EXPECT_EQ(window_icon.bounds().CenterPoint().y(),
-            maximized_browser_header_title_bounds.CenterPoint().y());
-}
-
-}  // namespace ash