mash: Move most files in //ash/system/tray to //ash/common/system/tray

ash/system/tray/fixed_sized_scroll_view.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/system/tray/fixed_sized_scroll_view.h"
-
-namespace ash {
-
-FixedSizedScrollView::FixedSizedScrollView() {
-  set_notify_enter_exit_on_child(true);
-}
-
-FixedSizedScrollView::~FixedSizedScrollView() {
-}
-
-void FixedSizedScrollView::SetContentsView(views::View* view) {
-  SetContents(view);
-  view->SetBoundsRect(gfx::Rect(view->GetPreferredSize()));
-}
-
-void FixedSizedScrollView::SetFixedSize(const gfx::Size& size) {
-  if (fixed_size_ == size)
-    return;
-  fixed_size_ = size;
-  PreferredSizeChanged();
-}
-
-gfx::Size FixedSizedScrollView::GetPreferredSize() const {
-  gfx::Size size = fixed_size_.IsEmpty() ?
-      contents()->GetPreferredSize() : fixed_size_;
-  gfx::Insets insets = GetInsets();
-  size.Enlarge(insets.width(), insets.height());
-  return size;
-}
-
-void FixedSizedScrollView::Layout() {
-  gfx::Rect bounds = gfx::Rect(contents()->GetPreferredSize());
-  bounds.set_width(std::max(0, width() - GetScrollBarWidth()));
-  // Keep the origin of the contents unchanged so that the list will not scroll
-  // away from the current visible region user is viewing. ScrollView::Layout()
-  // will make sure the contents line up with its viewport properly if
-  // the contents moves out of the viewport region.
-  bounds.set_origin(contents()->bounds().origin());
-  contents()->SetBoundsRect(bounds);
-
-  views::ScrollView::Layout();
-  if (!vertical_scroll_bar()->visible()) {
-    gfx::Rect bounds = contents()->bounds();
-    bounds.set_width(bounds.width() + GetScrollBarWidth());
-    contents()->SetBoundsRect(bounds);
-  }
-}
-
-void FixedSizedScrollView::OnBoundsChanged(const gfx::Rect& previous_bounds) {
-  gfx::Rect bounds = gfx::Rect(contents()->GetPreferredSize());
-  bounds.set_width(std::max(0, width() - GetScrollBarWidth()));
-  contents()->SetBoundsRect(bounds);
-}
-
-}  // namespace ash