mash: Move SystemTrayImage and TrayImageItem to //ash/common

ash/system/tray/tray_utils.cc

-// Copyright (c) 2012 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/tray_utils.h"
-
-#include "ash/common/shelf/wm_shelf_util.h"
-#include "ash/common/system/tray/tray_constants.h"
-#include "ash/shelf/shelf_util.h"
-#include "ash/system/tray/tray_item_view.h"
-#include "ui/accessibility/ax_view_state.h"
-#include "ui/gfx/font_list.h"
-#include "ui/gfx/geometry/vector2d.h"
-#include "ui/views/border.h"
-#include "ui/views/controls/label.h"
-
-namespace ash {
-
-void SetupLabelForTray(views::Label* label) {
-  label->SetFontList(
-      gfx::FontList().Derive(1, gfx::Font::NORMAL, gfx::Font::Weight::BOLD));
-  label->SetAutoColorReadabilityEnabled(false);
-  label->SetEnabledColor(SK_ColorWHITE);
-  label->SetBackgroundColor(SkColorSetARGB(0, 255, 255, 255));
-  label->SetShadows(gfx::ShadowValues(
-      1,
-      gfx::ShadowValue(gfx::Vector2d(0, 1), 0, SkColorSetARGB(64, 0, 0, 0))));
-}
-
-void SetTrayImageItemBorder(views::View* tray_view, ShelfAlignment alignment) {
-  if (IsHorizontalAlignment(alignment)) {
-    tray_view->SetBorder(views::Border::CreateEmptyBorder(
-        0, kTrayImageItemHorizontalPaddingBottomAlignment, 0,
-        kTrayImageItemHorizontalPaddingBottomAlignment));
-  } else {
-    tray_view->SetBorder(views::Border::CreateEmptyBorder(
-        kTrayImageItemVerticalPaddingVerticalAlignment,
-        kTrayImageItemHorizontalPaddingVerticalAlignment,
-        kTrayImageItemVerticalPaddingVerticalAlignment,
-        kTrayImageItemHorizontalPaddingVerticalAlignment));
-  }
-}
-
-void SetTrayLabelItemBorder(TrayItemView* tray_view, ShelfAlignment alignment) {
-  if (IsHorizontalAlignment(alignment)) {
-    tray_view->SetBorder(views::Border::CreateEmptyBorder(
-        0, kTrayLabelItemHorizontalPaddingBottomAlignment, 0,
-        kTrayLabelItemHorizontalPaddingBottomAlignment));
-  } else {
-    // Center the label for vertical launcher alignment.
-    int horizontal_padding = std::max(0,
-        (tray_view->GetPreferredSize().width() -
-        tray_view->label()->GetPreferredSize().width()) / 2);
-    tray_view->SetBorder(views::Border::CreateEmptyBorder(
-        kTrayLabelItemVerticalPaddingVerticalAlignment, horizontal_padding,
-        kTrayLabelItemVerticalPaddingVerticalAlignment, horizontal_padding));
-  }
-}
-
-void GetAccessibleLabelFromDescendantViews(
-    views::View* view,
-    std::vector<base::string16>& out_labels) {
-  ui::AXViewState temp_state;
-  view->GetAccessibleState(&temp_state);
-  if (!temp_state.name.empty())
-    out_labels.push_back(temp_state.name);
-
-  // Do not descend into static text labels which may compute their own labels
-  // recursively.
-  if (temp_state.role == ui::AX_ROLE_STATIC_TEXT)
-    return;
-
-  for (int i = 0; i < view->child_count(); ++i)
-    GetAccessibleLabelFromDescendantViews(view->child_at(i), out_labels);
-}
-
-}  // namespace ash