Rename ArcCustomNotificationView to ArcNotificationContentView

ui/arc/notification/arc_custom_notification_view.cc

Index: ui/arc/notification/arc_custom_notification_view.cc
diff --git a/ui/arc/notification/arc_custom_notification_view.cc b/ui/arc/notification/arc_custom_notification_view.cc
deleted file mode 100644
index c84e64642e490599258fa8245a8c856e11661246..0000000000000000000000000000000000000000
--- a/ui/arc/notification/arc_custom_notification_view.cc
+++ /dev/null
@@ -1,716 +0,0 @@
-// Copyright 2016 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 "ui/arc/notification/arc_custom_notification_view.h"
-
-#include "ash/wm/window_util.h"
-#include "base/auto_reset.h"
-#include "base/memory/ptr_util.h"
-#include "components/exo/notification_surface.h"
-#include "components/exo/surface.h"
-#include "ui/accessibility/ax_action_data.h"
-#include "ui/arc/notification/arc_notification_view.h"
-#include "ui/base/l10n/l10n_util.h"
-#include "ui/base/resource/resource_bundle.h"
-#include "ui/compositor/layer_animation_observer.h"
-#include "ui/events/event_handler.h"
-#include "ui/gfx/animation/linear_animation.h"
-#include "ui/gfx/animation/tween.h"
-#include "ui/gfx/canvas.h"
-#include "ui/gfx/transform.h"
-#include "ui/message_center/message_center_style.h"
-#include "ui/message_center/views/toast_contents_view.h"
-#include "ui/strings/grit/ui_strings.h"
-#include "ui/views/background.h"
-#include "ui/views/focus/focus_manager.h"
-#include "ui/views/layout/box_layout.h"
-#include "ui/views/painter.h"
-#include "ui/views/widget/root_view.h"
-#include "ui/views/widget/widget.h"
-#include "ui/wm/core/window_util.h"
-
-namespace arc {
-
-namespace {
-
-// This value should be the same as the duration of reveal animation of
-// the settings view of an Android notification.
-constexpr int kBackgroundColorChangeDuration = 360;
-
-SkColor GetControlButtonBackgroundColor(
-    const mojom::ArcNotificationShownContents& shown_contents) {
-  if (shown_contents == mojom::ArcNotificationShownContents::CONTENTS_SHOWN)
-    return message_center::kControlButtonBackgroundColor;
-  else
-    return SK_ColorTRANSPARENT;
-}
-
-}  // namespace
-
-class ArcCustomNotificationView::EventForwarder : public ui::EventHandler {
- public:
-  explicit EventForwarder(ArcCustomNotificationView* owner) : owner_(owner) {}
-  ~EventForwarder() override = default;
-
- private:
-  // ui::EventHandler
-  void OnEvent(ui::Event* event) override {
-    // Do not forward event targeted to the floating close button so that
-    // keyboard press and tap are handled properly.
-    if (owner_->floating_control_buttons_widget_ && event->target() &&
-        owner_->floating_control_buttons_widget_->GetNativeWindow() ==
-            event->target()) {
-      return;
-    }
-
-    // TODO(yoshiki): Use a better tigger (eg. focusing EditText on
-    // notification) than clicking (crbug.com/697379).
-    if (event->type() == ui::ET_MOUSE_PRESSED)
-      owner_->ActivateToast();
-
-    views::Widget* widget = owner_->GetWidget();
-    if (!widget)
-      return;
-
-    // Forward the events to the containing widget, except for:
-    // 1. Touches, because View should no longer receive touch events.
-    //    See View::OnTouchEvent.
-    // 2. Tap gestures are handled on the Android side, so ignore them.
-    //    See crbug.com/709911.
-    // 3. Key events. These are already forwarded by NotificationSurface's
-    //    WindowDelegate.
-    if (event->IsLocatedEvent()) {
-      ui::LocatedEvent* located_event = event->AsLocatedEvent();
-      located_event->target()->ConvertEventToTarget(widget->GetNativeWindow(),
-                                                    located_event);
-      if (located_event->type() == ui::ET_MOUSE_MOVED ||
-          located_event->IsMouseWheelEvent()) {
-        widget->OnMouseEvent(located_event->AsMouseEvent());
-      } else if (located_event->IsScrollEvent()) {
-        widget->OnScrollEvent(located_event->AsScrollEvent());
-      } else if (located_event->IsGestureEvent() &&
-                 event->type() != ui::ET_GESTURE_TAP) {
-        widget->OnGestureEvent(located_event->AsGestureEvent());
-      }
-    }
-  }
-
-  ArcCustomNotificationView* const owner_;
-
-  DISALLOW_COPY_AND_ASSIGN(EventForwarder);
-};
-
-class ArcCustomNotificationView::SlideHelper
-    : public ui::LayerAnimationObserver {
- public:
-  explicit SlideHelper(ArcCustomNotificationView* owner) : owner_(owner) {
-    GetSlideOutLayer()->GetAnimator()->AddObserver(this);
-
-    // Reset opacity to 1 to handle to case when the surface is sliding before
-    // getting managed by this class, e.g. sliding in a popup before showing
-    // in a message center view.
-    if (owner_->surface_ && owner_->surface_->window())
-      owner_->surface_->window()->layer()->SetOpacity(1.0f);
-  }
-  ~SlideHelper() override {
-    if (GetSlideOutLayer())
-      GetSlideOutLayer()->GetAnimator()->RemoveObserver(this);
-  }
-
-  void Update() {
-    const bool has_animation =
-        GetSlideOutLayer()->GetAnimator()->is_animating();
-    const bool has_transform = !GetSlideOutLayer()->transform().IsIdentity();
-    const bool sliding = has_transform || has_animation;
-    if (sliding_ == sliding)
-      return;
-
-    sliding_ = sliding;
-
-    if (sliding_)
-      OnSlideStart();
-    else
-      OnSlideEnd();
-  }
-
- private:
-  // This is a temporary hack to address crbug.com/718965
-  ui::Layer* GetSlideOutLayer() {
-    ui::Layer* layer = owner_->parent()->layer();
-    return layer ? layer : owner_->GetWidget()->GetLayer();
-  }
-
-  void OnSlideStart() {
-    if (!owner_->surface_ || !owner_->surface_->window())
-      return;
-    surface_copy_ = ::wm::RecreateLayers(owner_->surface_->window());
-    // |surface_copy_| is at (0, 0) in owner_->layer().
-    surface_copy_->root()->SetBounds(gfx::Rect(surface_copy_->root()->size()));
-    owner_->layer()->Add(surface_copy_->root());
-    owner_->surface_->window()->layer()->SetOpacity(0.0f);
-  }
-
-  void OnSlideEnd() {
-    if (!owner_->surface_ || !owner_->surface_->window())
-      return;
-    owner_->surface_->window()->layer()->SetOpacity(1.0f);
-    owner_->Layout();
-    surface_copy_.reset();
-  }
-
-  // ui::LayerAnimationObserver
-  void OnLayerAnimationEnded(ui::LayerAnimationSequence* seq) override {
-    Update();
-  }
-  void OnLayerAnimationAborted(ui::LayerAnimationSequence* seq) override {
-    Update();
-  }
-  void OnLayerAnimationScheduled(ui::LayerAnimationSequence* seq) override {}
-
-  ArcCustomNotificationView* const owner_;
-  bool sliding_ = false;
-  std::unique_ptr<ui::LayerTreeOwner> surface_copy_;
-
-  DISALLOW_COPY_AND_ASSIGN(SlideHelper);
-};
-
-class ArcCustomNotificationView::ContentViewDelegate
-    : public ArcNotificationContentViewDelegate {
- public:
-  explicit ContentViewDelegate(ArcCustomNotificationView* owner)
-      : owner_(owner) {}
-
-  bool IsCloseButtonFocused() const override {
-    if (!owner_->close_button_)
-      return false;
-    return owner_->close_button_->HasFocus();
-  }
-
-  void RequestFocusOnCloseButton() override {
-    if (owner_->close_button_)
-      owner_->close_button_->RequestFocus();
-    owner_->UpdateControlButtonsVisibility();
-  }
-
-  void UpdateControlButtonsVisibility() override {
-    owner_->UpdateControlButtonsVisibility();
-  }
-
-  void OnSlideChanged() override {
-    if (owner_->slide_helper_)
-      owner_->slide_helper_->Update();
-  }
-
- private:
-  ArcCustomNotificationView* const owner_;
-
-  DISALLOW_COPY_AND_ASSIGN(ContentViewDelegate);
-};
-
-ArcCustomNotificationView::ControlButton::ControlButton(
-    ArcCustomNotificationView* owner)
-    : message_center::PaddedButton(owner), owner_(owner) {
-  if (owner_->item_) {
-    set_background(views::Background::CreateSolidBackground(
-        GetControlButtonBackgroundColor(owner_->item_->GetShownContents())));
-  } else {
-    set_background(views::Background::CreateSolidBackground(
-        message_center::kControlButtonBackgroundColor));
-  }
-}
-
-void ArcCustomNotificationView::ControlButton::OnFocus() {
-  message_center::PaddedButton::OnFocus();
-  owner_->UpdateControlButtonsVisibility();
-}
-
-void ArcCustomNotificationView::ControlButton::OnBlur() {
-  message_center::PaddedButton::OnBlur();
-  owner_->UpdateControlButtonsVisibility();
-}
-
-ArcCustomNotificationView::ArcCustomNotificationView(ArcNotificationItem* item)
-    : item_(item),
-      notification_key_(item->GetNotificationKey()),
-      event_forwarder_(new EventForwarder(this)) {
-  SetFocusBehavior(FocusBehavior::ALWAYS);
-
-  item_->IncrementWindowRefCount();
-  item_->AddObserver(this);
-
-  auto* surface_manager = ArcNotificationSurfaceManager::Get();
-  if (surface_manager) {
-    surface_manager->AddObserver(this);
-    exo::NotificationSurface* surface =
-        surface_manager->GetSurface(notification_key_);
-    if (surface)
-      OnNotificationSurfaceAdded(surface);
-  }
-
-  // Create a layer as an anchor to insert surface copy during a slide.
-  SetPaintToLayer();
-  UpdatePreferredSize();
-}
-
-ArcCustomNotificationView::~ArcCustomNotificationView() {
-  SetSurface(nullptr);
-
-  auto* surface_manager = ArcNotificationSurfaceManager::Get();
-  if (surface_manager)
-    surface_manager->RemoveObserver(this);
-  if (item_) {
-    item_->RemoveObserver(this);
-    item_->DecrementWindowRefCount();
-  }
-}
-
-std::unique_ptr<ArcNotificationContentViewDelegate>
-ArcCustomNotificationView::CreateContentViewDelegate() {
-  return base::MakeUnique<ArcCustomNotificationView::ContentViewDelegate>(this);
-}
-
-void ArcCustomNotificationView::CreateCloseButton() {
-  DCHECK(control_buttons_view_);
-  DCHECK(item_);
-
-  close_button_ = base::MakeUnique<ControlButton>(this);
-  close_button_->SetImage(views::CustomButton::STATE_NORMAL,
-                          message_center::GetCloseIcon());
-  close_button_->SetAccessibleName(l10n_util::GetStringUTF16(
-      IDS_MESSAGE_CENTER_CLOSE_NOTIFICATION_BUTTON_ACCESSIBLE_NAME));
-  close_button_->SetTooltipText(l10n_util::GetStringUTF16(
-      IDS_MESSAGE_CENTER_CLOSE_NOTIFICATION_BUTTON_TOOLTIP));
-  close_button_->set_owned_by_client();
-  control_buttons_view_->AddChildView(close_button_.get());
-}
-
-void ArcCustomNotificationView::CreateSettingsButton() {
-  DCHECK(control_buttons_view_);
-  DCHECK(item_);
-
-  settings_button_ = new ControlButton(this);
-  settings_button_->SetImage(views::CustomButton::STATE_NORMAL,
-                             message_center::GetSettingsIcon());
-  settings_button_->SetAccessibleName(l10n_util::GetStringUTF16(
-      IDS_MESSAGE_NOTIFICATION_SETTINGS_BUTTON_ACCESSIBLE_NAME));
-  settings_button_->SetTooltipText(l10n_util::GetStringUTF16(
-      IDS_MESSAGE_NOTIFICATION_SETTINGS_BUTTON_ACCESSIBLE_NAME));
-  control_buttons_view_->AddChildView(settings_button_);
-}
-
-void ArcCustomNotificationView::MaybeCreateFloatingControlButtons() {
-  // Floating close button is a transient child of |surface_| and also part
-  // of the hosting widget's focus chain. It could only be created when both
-  // are present. Further, if we are being destroyed (|item_| is null), don't
-  // create the control buttons.
-  if (!surface_ || !GetWidget() || !item_)
-    return;
-
-  // Creates the control_buttons_view_, which collects all control buttons into
-  // a horizontal box.
-  control_buttons_view_ = new views::View();
-  control_buttons_view_->SetLayoutManager(
-      new views::BoxLayout(views::BoxLayout::kHorizontal, 0, 0, 0));
-
-  if (item_->IsOpeningSettingsSupported())
-    CreateSettingsButton();
-  if (!item_->GetPinned())
-    CreateCloseButton();
-
-  views::Widget::InitParams params(views::Widget::InitParams::TYPE_CONTROL);
-  params.opacity = views::Widget::InitParams::TRANSLUCENT_WINDOW;
-  params.ownership = views::Widget::InitParams::WIDGET_OWNS_NATIVE_WIDGET;
-  params.parent = surface_->window();
-
-  floating_control_buttons_widget_.reset(new views::Widget);
-  floating_control_buttons_widget_->Init(params);
-  floating_control_buttons_widget_->SetContentsView(control_buttons_view_);
-
-  // Put the close button into the focus chain.
-  floating_control_buttons_widget_->SetFocusTraversableParent(
-      GetWidget()->GetFocusTraversable());
-  floating_control_buttons_widget_->SetFocusTraversableParentView(this);
-
-  Layout();
-}
-
-void ArcCustomNotificationView::SetSurface(exo::NotificationSurface* surface) {
-  if (surface_ == surface)
-    return;
-
-  // Reset |floating_control_buttons_widget_| when |surface_| is changed.
-  floating_control_buttons_widget_.reset();
-  control_buttons_view_ = nullptr;
-  settings_button_ = nullptr;
-  close_button_.reset();
-
-  if (surface_ && surface_->window()) {
-    surface_->window()->RemoveObserver(this);
-    surface_->window()->RemovePreTargetHandler(event_forwarder_.get());
-  }
-
-  surface_ = surface;
-
-  if (surface_ && surface_->window()) {
-    surface_->window()->AddObserver(this);
-    surface_->window()->AddPreTargetHandler(event_forwarder_.get());
-
-    MaybeCreateFloatingControlButtons();
-
-    if (GetWidget())
-      AttachSurface();
-  }
-}
-
-void ArcCustomNotificationView::UpdatePreferredSize() {
-  gfx::Size preferred_size;
-  if (surface_)
-    preferred_size = surface_->GetSize();
-  else if (item_)
-    preferred_size = item_->GetSnapshot().size();
-
-  if (preferred_size.IsEmpty())
-    return;
-
-  if (preferred_size.width() != message_center::kNotificationWidth) {
-    const float scale = static_cast<float>(message_center::kNotificationWidth) /
-                        preferred_size.width();
-    preferred_size.SetSize(message_center::kNotificationWidth,
-                           preferred_size.height() * scale);
-  }
-
-  SetPreferredSize(preferred_size);
-}
-
-void ArcCustomNotificationView::UpdateControlButtonsVisibility() {
-  if (!surface_)
-    return;
-
-  // TODO(edcourtney, yhanada): Creating the floating control widget here is not
-  // correct. This function may be called during the destruction of
-  // |floating_control_buttons_widget_|. This can lead to memory corruption.
-  // Rather than creating it here, we should fix the behaviour of OnMouseExited
-  // and OnMouseEntered for ARC notifications in MessageCenterView. See
-  // crbug.com/714587 and crbug.com/709862.
-  if (!floating_control_buttons_widget_) {
-    // This may update |floating_control_buttons_widget_|.
-    MaybeCreateFloatingControlButtons();
-    if (!floating_control_buttons_widget_)
-      return;
-  }
-
-  const bool target_visiblity =
-      IsMouseHovered() || (close_button_ && close_button_->HasFocus()) ||
-      (settings_button_ && settings_button_->HasFocus());
-  if (target_visiblity == floating_control_buttons_widget_->IsVisible())
-    return;
-
-  if (target_visiblity)
-    floating_control_buttons_widget_->Show();
-  else
-    floating_control_buttons_widget_->Hide();
-}
-
-void ArcCustomNotificationView::UpdatePinnedState() {
-  if (!item_)
-    return;
-
-  if (item_->GetPinned() && close_button_) {
-    control_buttons_view_->RemoveChildView(close_button_.get());
-    close_button_.reset();
-    Layout();
-  } else if (!item_->GetPinned() && !close_button_) {
-    CreateCloseButton();
-    Layout();
-  }
-}
-
-void ArcCustomNotificationView::UpdateSnapshot() {
-  // Bail if we have a |surface_| because it controls the sizes and paints UI.
-  if (surface_)
-    return;
-
-  UpdatePreferredSize();
-  SchedulePaint();
-}
-
-void ArcCustomNotificationView::AttachSurface() {
-  if (!GetWidget())
-    return;
-
-  UpdatePreferredSize();
-  Attach(surface_->window());
-
-  // The texture for this window can be placed at subpixel position
-  // with fractional scale factor. Force to align it at the pixel
-  // boundary here, and when layout is updated in Layout().
-  ash::wm::SnapWindowToPixelBoundary(surface_->window());
-
-  // Creates slide helper after this view is added to its parent.
-  slide_helper_.reset(new SlideHelper(this));
-
-  // Invokes Update() in case surface is attached during a slide.
-  slide_helper_->Update();
-
-  // Updates pinned state to create or destroy the floating close button
-  // after |surface_| is attached to a widget.
-  if (item_)
-    UpdatePinnedState();
-}
-
-void ArcCustomNotificationView::StartControlButtonsColorAnimation() {
-  if (control_button_color_animation_)
-    control_button_color_animation_->End();
-  control_button_color_animation_.reset(new gfx::LinearAnimation(this));
-  control_button_color_animation_->SetDuration(kBackgroundColorChangeDuration);
-  control_button_color_animation_->Start();
-}
-
-bool ArcCustomNotificationView::ShouldUpdateControlButtonsColor() const {
-  // Don't update the control button color when we are about to be destroyed.
-  if (!item_)
-    return false;
-
-  if (settings_button_ &&
-      settings_button_->background()->get_color() !=
-          GetControlButtonBackgroundColor(item_->GetShownContents()))
-    return true;
-  if (close_button_ &&
-      close_button_->background()->get_color() !=
-          GetControlButtonBackgroundColor(item_->GetShownContents()))
-    return true;
-  return false;
-}
-
-void ArcCustomNotificationView::ViewHierarchyChanged(
-    const views::View::ViewHierarchyChangedDetails& details) {
-  views::Widget* widget = GetWidget();
-
-  if (!details.is_add) {
-    // Resets slide helper when this view is removed from its parent.
-    slide_helper_.reset();
-
-    // Bail if this view is no longer attached to a widget or native_view() has
-    // attached to a different widget.
-    if (!widget || (native_view() &&
-                    views::Widget::GetTopLevelWidgetForNativeView(
-                        native_view()) != widget)) {
-      return;
-    }
-  }
-
-  views::NativeViewHost::ViewHierarchyChanged(details);
-
-  if (!widget || !surface_ || !details.is_add)
-    return;
-
-  AttachSurface();
-}
-
-void ArcCustomNotificationView::Layout() {
-  base::AutoReset<bool> auto_reset_in_layout(&in_layout_, true);
-
-  views::NativeViewHost::Layout();
-
-  if (!surface_ || !GetWidget())
-    return;
-
-  const gfx::Rect contents_bounds = GetContentsBounds();
-
-  // Scale notification surface if necessary.
-  gfx::Transform transform;
-  const gfx::Size surface_size = surface_->GetSize();
-  const gfx::Size contents_size = contents_bounds.size();
-  if (!surface_size.IsEmpty() && !contents_size.IsEmpty()) {
-    transform.Scale(
-        static_cast<float>(contents_size.width()) / surface_size.width(),
-        static_cast<float>(contents_size.height()) / surface_size.height());
-  }
-
-  // Apply the transform to the surface content so that close button can
-  // be positioned without the need to consider the transform.
-  surface_->window()->children()[0]->SetTransform(transform);
-
-  if (!floating_control_buttons_widget_)
-    return;
-
-  gfx::Rect control_buttons_bounds(contents_bounds);
-  int buttons_width = 0;
-  int buttons_height = 0;
-  if (close_button_) {
-    buttons_width += close_button_->GetPreferredSize().width();
-    buttons_height = close_button_->GetPreferredSize().height();
-  }
-  if (settings_button_) {
-    buttons_width += settings_button_->GetPreferredSize().width();
-    buttons_height = settings_button_->GetPreferredSize().height();
-  }
-  control_buttons_bounds.set_x(control_buttons_bounds.right() - buttons_width -
-                               message_center::kControlButtonPadding);
-  control_buttons_bounds.set_y(control_buttons_bounds.y() +
-                               message_center::kControlButtonPadding);
-  control_buttons_bounds.set_width(buttons_width);
-  control_buttons_bounds.set_height(buttons_height);
-  floating_control_buttons_widget_->SetBounds(control_buttons_bounds);
-
-  UpdateControlButtonsVisibility();
-
-  ash::wm::SnapWindowToPixelBoundary(surface_->window());
-}
-
-void ArcCustomNotificationView::OnPaint(gfx::Canvas* canvas) {
-  views::NativeViewHost::OnPaint(canvas);
-
-  // Bail if there is a |surface_| or no item or no snapshot image.
-  if (surface_ || !item_ || item_->GetSnapshot().isNull())
-    return;
-  const gfx::Rect contents_bounds = GetContentsBounds();
-  canvas->DrawImageInt(item_->GetSnapshot(), 0, 0, item_->GetSnapshot().width(),
-                       item_->GetSnapshot().height(), contents_bounds.x(),
-                       contents_bounds.y(), contents_bounds.width(),
-                       contents_bounds.height(), false);
-}
-
-void ArcCustomNotificationView::OnMouseEntered(const ui::MouseEvent&) {
-  UpdateControlButtonsVisibility();
-}
-
-void ArcCustomNotificationView::OnMouseExited(const ui::MouseEvent&) {
-  UpdateControlButtonsVisibility();
-}
-
-void ArcCustomNotificationView::OnFocus() {
-  CHECK_EQ(ArcNotificationView::kViewClassName, parent()->GetClassName());
-
-  NativeViewHost::OnFocus();
-  static_cast<ArcNotificationView*>(parent())->OnContentFocused();
-}
-
-void ArcCustomNotificationView::OnBlur() {
-  if (!parent()) {
-    // OnBlur may be called when this view is being removed.
-    return;
-  }
-
-  CHECK_EQ(ArcNotificationView::kViewClassName, parent()->GetClassName());
-
-  NativeViewHost::OnBlur();
-  static_cast<ArcNotificationView*>(parent())->OnContentBlured();
-}
-
-void ArcCustomNotificationView::ActivateToast() {
-  if (message_center::ToastContentsView::kViewClassName ==
-      parent()->parent()->GetClassName()) {
-    static_cast<message_center::ToastContentsView*>(parent()->parent())
-        ->ActivateToast();
-  }
-}
-
-views::FocusTraversable* ArcCustomNotificationView::GetFocusTraversable() {
-  if (floating_control_buttons_widget_)
-    return static_cast<views::internal::RootView*>(
-        floating_control_buttons_widget_->GetRootView());
-  return nullptr;
-}
-
-bool ArcCustomNotificationView::HandleAccessibleAction(
-    const ui::AXActionData& action_data) {
-  if (item_ && action_data.action == ui::AX_ACTION_DO_DEFAULT) {
-    item_->ToggleExpansion();
-    return true;
-  }
-  return false;
-}
-
-void ArcCustomNotificationView::ButtonPressed(views::Button* sender,
-                                              const ui::Event& event) {
-  if (item_ && !item_->GetPinned() && sender == close_button_.get()) {
-    CHECK_EQ(ArcNotificationView::kViewClassName, parent()->GetClassName());
-    static_cast<ArcNotificationView*>(parent())->OnCloseButtonPressed();
-  }
-  if (item_ && settings_button_ && sender == settings_button_) {
-    item_->OpenSettings();
-  }
-}
-
-void ArcCustomNotificationView::OnWindowBoundsChanged(
-    aura::Window* window,
-    const gfx::Rect& old_bounds,
-    const gfx::Rect& new_bounds) {
-  if (in_layout_)
-    return;
-
-  UpdatePreferredSize();
-  Layout();
-}
-
-void ArcCustomNotificationView::OnWindowDestroying(aura::Window* window) {
-  SetSurface(nullptr);
-}
-
-void ArcCustomNotificationView::OnItemDestroying() {
-  item_->RemoveObserver(this);
-  item_ = nullptr;
-
-  // Reset |surface_| with |item_| since no one is observing the |surface_|
-  // after |item_| is gone and this view should be removed soon.
-  SetSurface(nullptr);
-}
-
-void ArcCustomNotificationView::OnItemUpdated() {
-  UpdatePinnedState();
-  UpdateSnapshot();
-  if (ShouldUpdateControlButtonsColor())
-    StartControlButtonsColorAnimation();
-}
-
-void ArcCustomNotificationView::OnNotificationSurfaceAdded(
-    exo::NotificationSurface* surface) {
-  if (surface->notification_id() != notification_key_)
-    return;
-
-  SetSurface(surface);
-}
-
-void ArcCustomNotificationView::OnNotificationSurfaceRemoved(
-    exo::NotificationSurface* surface) {
-  if (surface->notification_id() != notification_key_)
-    return;
-
-  SetSurface(nullptr);
-}
-
-void ArcCustomNotificationView::AnimationEnded(
-    const gfx::Animation* animation) {
-  DCHECK_EQ(animation, control_button_color_animation_.get());
-  control_button_color_animation_.reset();
-}
-
-void ArcCustomNotificationView::AnimationProgressed(
-    const gfx::Animation* animation) {
-  DCHECK_EQ(animation, control_button_color_animation_.get());
-
-  if (item_) {
-    const SkColor target =
-        GetControlButtonBackgroundColor(item_->GetShownContents());
-    const SkColor start =
-        target == message_center::kControlButtonBackgroundColor
-            ? SK_ColorTRANSPARENT
-            : message_center::kControlButtonBackgroundColor;
-    const SkColor current_color = gfx::Tween::ColorValueBetween(
-        animation->GetCurrentValue(), start, target);
-    if (settings_button_) {
-      settings_button_->set_background(
-          views::Background::CreateSolidBackground(current_color));
-      settings_button_->SchedulePaint();
-    }
-    if (close_button_) {
-      close_button_->set_background(
-          views::Background::CreateSolidBackground(current_color));
-      close_button_->SchedulePaint();
-    }
-  }
-}
-
-}  // namespace arc