Converts mash to use the common non-client frame

ash/mus/frame/header_painter_util.cc

-// Copyright 2015 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/mus/frame/header_painter_util.h"
-
-#include <algorithm>
-
-#include "ui/gfx/font_list.h"
-#include "ui/gfx/geometry/rect.h"
-#include "ui/views/view.h"
-#include "ui/views/widget/widget.h"
-
-namespace {
-
-// Radius of the header's top corners when the window is restored.
-const int kTopCornerRadiusWhenRestored = 2;
-
-// Distance between left edge of the window and the leftmost view.
-const int kLeftViewXInset = 9;
-
-// Space between the title text and the caption buttons.
-const int kTitleCaptionButtonSpacing = 5;
-
-// Space between window icon and title text.
-const int kTitleIconOffsetX = 5;
-
-// Space between window edge and title text, when there is no icon.
-const int kTitleNoIconOffsetX = 8;
-
-// In the pre-Ash era the web content area had a frame along the left edge, so
-// user-generated theme images for the new tab page assume they are shifted
-// right relative to the header.  Now that we have removed the left edge frame
-// we need to copy the theme image for the window header from a few pixels
-// inset to preserve alignment with the NTP image, or else we'll break a bunch
-// of existing themes.  We do something similar on OS X for the same reason.
-const int kThemeFrameImageInsetX = 5;
-
-}  // namespace
-
-namespace ash {
-namespace mus {
-
-// static
-int HeaderPainterUtil::GetTopCornerRadiusWhenRestored() {
-  return kTopCornerRadiusWhenRestored;
-}
-
-// static
-int HeaderPainterUtil::GetLeftViewXInset() {
-  return kLeftViewXInset;
-}
-
-// static
-int HeaderPainterUtil::GetThemeBackgroundXInset() {
-  return kThemeFrameImageInsetX;
-}
-
-// static
-gfx::Rect HeaderPainterUtil::GetTitleBounds(
-    const views::View* left_view,
-    const views::View* right_view,
-    const gfx::FontList& title_font_list) {
-  int x = left_view ? left_view->bounds().right() + kTitleIconOffsetX
-                    : kTitleNoIconOffsetX;
-  int height = title_font_list.GetHeight();
-  // Floor when computing the center of |caption_button_container| and when
-  // computing the center of the text.
-  int y = std::max(0, (right_view->height() / 2) - (height / 2));
-  int width = std::max(0, right_view->x() - kTitleCaptionButtonSpacing - x);
-  return gfx::Rect(x, y, width, height);
-}
-
-// static
-bool HeaderPainterUtil::CanAnimateActivation(views::Widget* widget) {
-  return true;
-}
-
-}  // namespace mus
-}  // namespace ash