Move code related to the window controls to ash/wm/caption_buttons

ash/wm/workspace/frame_maximize_button.cc

Index: ash/wm/workspace/frame_maximize_button.cc
diff --git a/ash/wm/workspace/frame_maximize_button.cc b/ash/wm/workspace/frame_maximize_button.cc
deleted file mode 100644
index 08980c287f9f399a2899eebb7687d82e7ee1c877..0000000000000000000000000000000000000000
--- a/ash/wm/workspace/frame_maximize_button.cc
+++ /dev/null
@@ -1,619 +0,0 @@
-// 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/wm/workspace/frame_maximize_button.h"
-
-#include "ash/launcher/launcher.h"
-#include "ash/screen_ash.h"
-#include "ash/shelf/shelf_widget.h"
-#include "ash/shell.h"
-#include "ash/shell_delegate.h"
-#include "ash/touch/touch_uma.h"
-#include "ash/wm/maximize_bubble_controller.h"
-#include "ash/wm/property_util.h"
-#include "ash/wm/window_animations.h"
-#include "ash/wm/window_settings.h"
-#include "ash/wm/workspace/phantom_window_controller.h"
-#include "ash/wm/workspace/snap_sizer.h"
-#include "grit/ash_strings.h"
-#include "ui/aura/client/aura_constants.h"
-#include "ui/aura/window.h"
-#include "ui/base/events/event.h"
-#include "ui/base/events/event_handler.h"
-#include "ui/base/l10n/l10n_util.h"
-#include "ui/base/resource/resource_bundle.h"
-#include "ui/gfx/image/image.h"
-#include "ui/gfx/screen.h"
-#include "ui/views/widget/widget.h"
-#include "ui/views/window/non_client_view.h"
-
-using ash::internal::SnapSizer;
-
-namespace ash {
-
-namespace {
-
-// Delay before forcing an update of the snap location.
-const int kUpdateDelayMS = 400;
-
-// The delay of the bubble appearance.
-const int kBubbleAppearanceDelayMS = 500;
-
-// The minimum sanp size in percent of the screen width.
-const int kMinSnapSizePercent = 50;
-}
-
-// EscapeEventFilter is installed on the RootWindow to track when the escape key
-// is pressed. We use an EventFilter for this as the FrameMaximizeButton
-// normally does not get focus.
-class FrameMaximizeButton::EscapeEventFilter : public ui::EventHandler {
- public:
-  explicit EscapeEventFilter(FrameMaximizeButton* button);
-  virtual ~EscapeEventFilter();
-
-  // EventFilter overrides:
-  virtual void OnKeyEvent(ui::KeyEvent* event) OVERRIDE;
-
- private:
-  FrameMaximizeButton* button_;
-
-  DISALLOW_COPY_AND_ASSIGN(EscapeEventFilter);
-};
-
-FrameMaximizeButton::EscapeEventFilter::EscapeEventFilter(
-    FrameMaximizeButton* button)
-    : button_(button) {
-  Shell::GetInstance()->AddPreTargetHandler(this);
-}
-
-FrameMaximizeButton::EscapeEventFilter::~EscapeEventFilter() {
-  Shell::GetInstance()->RemovePreTargetHandler(this);
-}
-
-void FrameMaximizeButton::EscapeEventFilter::OnKeyEvent(
-    ui::KeyEvent* event) {
-  if (event->type() == ui::ET_KEY_PRESSED &&
-      event->key_code() == ui::VKEY_ESCAPE) {
-    button_->Cancel(false);
-  }
-}
-
-// FrameMaximizeButton ---------------------------------------------------------
-
-FrameMaximizeButton::FrameMaximizeButton(views::ButtonListener* listener,
-                                         views::NonClientFrameView* frame)
-    : ImageButton(listener),
-      frame_(frame),
-      is_snap_enabled_(false),
-      exceeded_drag_threshold_(false),
-      widget_(NULL),
-      press_is_gesture_(false),
-      snap_type_(SNAP_NONE),
-      bubble_appearance_delay_ms_(kBubbleAppearanceDelayMS) {
-  // TODO(sky): nuke this. It's temporary while we don't have good images.
-  SetImageAlignment(ALIGN_LEFT, ALIGN_BOTTOM);
-
-  if (ash::Shell::IsForcedMaximizeMode())
-    views::View::SetVisible(false);
-}
-
-FrameMaximizeButton::~FrameMaximizeButton() {
-  // Before the window gets destroyed, the maximizer dialog needs to be shut
-  // down since it would otherwise call into a deleted object.
-  maximizer_.reset();
-  if (widget_)
-    OnWindowDestroying(widget_->GetNativeWindow());
-}
-
-void FrameMaximizeButton::SnapButtonHovered(SnapType type) {
-  // Make sure to only show hover operations when no button is pressed and
-  // a similar snap operation in progress does not get re-applied.
-  if (is_snap_enabled_ || (type == snap_type_ && snap_sizer_))
-    return;
-  // Prime the mouse location with the center of the (local) button.
-  press_location_ = gfx::Point(width() / 2, height() / 2);
-  // Then get an adjusted mouse position to initiate the effect.
-  gfx::Point location = press_location_;
-  switch (type) {
-    case SNAP_LEFT:
-      location.set_x(location.x() - width());
-      break;
-    case SNAP_RIGHT:
-      location.set_x(location.x() + width());
-      break;
-    case SNAP_MINIMIZE:
-      location.set_y(location.y() + height());
-      break;
-    case SNAP_RESTORE:
-      // Simulate a mouse button move over the according button.
-      if (GetMaximizeBubbleFrameState() == FRAME_STATE_SNAP_LEFT)
-        location.set_x(location.x() - width());
-      else if (GetMaximizeBubbleFrameState() == FRAME_STATE_SNAP_RIGHT)
-        location.set_x(location.x() + width());
-      break;
-    case SNAP_MAXIMIZE:
-      break;
-    case SNAP_NONE:
-      Cancel(true);
-      return;
-    default:
-      // We should not come here.
-      NOTREACHED();
-  }
-  // Note: There is no hover with touch - we can therefore pass false for touch
-  // operations.
-  UpdateSnap(location, true, false);
-}
-
-void FrameMaximizeButton::ExecuteSnapAndCloseMenu(SnapType snap_type) {
-  // We can come here with no snap type set in case that the mouse opened the
-  // maximize button and a touch event "touched" a button.
-  if (snap_type_ == SNAP_NONE)
-    SnapButtonHovered(snap_type);
-
-  Cancel(true);
-  // Tell our menu to close.
-  maximizer_.reset();
-  snap_type_ = snap_type;
-  // Since Snap might destroy |this|, but the snap_sizer needs to be destroyed,
-  // The ownership of the snap_sizer is taken now.
-  scoped_ptr<SnapSizer> snap_sizer(snap_sizer_.release());
-  Snap(*snap_sizer.get());
-}
-
-void FrameMaximizeButton::DestroyMaximizeMenu() {
-  Cancel(false);
-}
-
-void FrameMaximizeButton::OnWindowBoundsChanged(
-    aura::Window* window,
-    const gfx::Rect& old_bounds,
-    const gfx::Rect& new_bounds) {
-  Cancel(false);
-}
-
-void FrameMaximizeButton::OnWindowPropertyChanged(aura::Window* window,
-                                                  const void* key,
-                                                  intptr_t old) {
-  Cancel(false);
-}
-
-void FrameMaximizeButton::OnWindowDestroying(aura::Window* window) {
-  maximizer_.reset();
-  if (widget_) {
-    CHECK_EQ(widget_->GetNativeWindow(), window);
-    widget_->GetNativeWindow()->RemoveObserver(this);
-    widget_->RemoveObserver(this);
-    widget_ = NULL;
-  }
-}
-
-void FrameMaximizeButton::OnWidgetActivationChanged(views::Widget* widget,
-                                                    bool active) {
-  // Upon losing focus, the control bubble should hide.
-  if (!active && maximizer_)
-    maximizer_.reset();
-}
-
-bool FrameMaximizeButton::OnMousePressed(const ui::MouseEvent& event) {
-  // If we are already in a mouse click / drag operation, a second button down
-  // call will cancel (this addresses crbug.com/143755).
-  if (is_snap_enabled_) {
-    Cancel(false);
-  } else {
-    is_snap_enabled_ = event.IsOnlyLeftMouseButton();
-    if (is_snap_enabled_)
-      ProcessStartEvent(event);
-  }
-  ImageButton::OnMousePressed(event);
-  return true;
-}
-
-void FrameMaximizeButton::OnMouseEntered(const ui::MouseEvent& event) {
-  ImageButton::OnMouseEntered(event);
-  if (!maximizer_) {
-    DCHECK(GetWidget());
-    if (!widget_) {
-      widget_ = frame_->GetWidget();
-      widget_->GetNativeWindow()->AddObserver(this);
-      widget_->AddObserver(this);
-    }
-    maximizer_.reset(new MaximizeBubbleController(
-        this,
-        GetMaximizeBubbleFrameState(),
-        bubble_appearance_delay_ms_));
-  }
-}
-
-void FrameMaximizeButton::OnMouseExited(const ui::MouseEvent& event) {
-  ImageButton::OnMouseExited(event);
-  // Remove the bubble menu when the button is not pressed and the mouse is not
-  // within the bubble.
-  if (!is_snap_enabled_ && maximizer_) {
-    if (maximizer_->GetBubbleWindow()) {
-      gfx::Point screen_location = Shell::GetScreen()->GetCursorScreenPoint();
-      if (!maximizer_->GetBubbleWindow()->GetBoundsInScreen().Contains(
-              screen_location)) {
-        maximizer_.reset();
-        // Make sure that all remaining snap hover states get removed.
-        SnapButtonHovered(SNAP_NONE);
-      }
-    } else {
-      // The maximize dialog does not show up immediately after creating the
-      // |mazimizer_|. Destroy the dialog therefore before it shows up.
-      maximizer_.reset();
-    }
-  }
-}
-
-bool FrameMaximizeButton::OnMouseDragged(const ui::MouseEvent& event) {
-  if (is_snap_enabled_)
-    ProcessUpdateEvent(event);
-  return ImageButton::OnMouseDragged(event);
-}
-
-void FrameMaximizeButton::OnMouseReleased(const ui::MouseEvent& event) {
-  maximizer_.reset();
-  bool snap_was_enabled = is_snap_enabled_;
-  if (!ProcessEndEvent(event) && snap_was_enabled)
-    ImageButton::OnMouseReleased(event);
-  // At this point |this| might be already destroyed.
-}
-
-void FrameMaximizeButton::OnMouseCaptureLost() {
-  Cancel(false);
-  ImageButton::OnMouseCaptureLost();
-}
-
-void FrameMaximizeButton::OnGestureEvent(ui::GestureEvent* event) {
-  if (event->type() == ui::ET_GESTURE_TAP_DOWN) {
-    is_snap_enabled_ = true;
-    ProcessStartEvent(*event);
-    event->SetHandled();
-    return;
-  }
-
-  if (event->type() == ui::ET_GESTURE_TAP ||
-      (event->type() == ui::ET_GESTURE_SCROLL_END && is_snap_enabled_) ||
-      event->type() == ui::ET_SCROLL_FLING_START) {
-    // The position of the event may have changed from the previous event (both
-    // for TAP and SCROLL_END). So it is necessary to update the snap-state for
-    // the current event.
-    ProcessUpdateEvent(*event);
-    if (event->type() == ui::ET_GESTURE_TAP) {
-      snap_type_ = SnapTypeForLocation(event->location());
-      TouchUMA::GetInstance()->RecordGestureAction(
-          TouchUMA::GESTURE_FRAMEMAXIMIZE_TAP);
-    }
-    ProcessEndEvent(*event);
-    event->SetHandled();
-    return;
-  }
-
-  if (is_snap_enabled_) {
-    if (event->type() == ui::ET_GESTURE_END &&
-        event->details().touch_points() == 1) {
-      // The position of the event may have changed from the previous event. So
-      // it is necessary to update the snap-state for the current event.
-      ProcessUpdateEvent(*event);
-      snap_type_ = SnapTypeForLocation(event->location());
-      ProcessEndEvent(*event);
-      event->SetHandled();
-      return;
-    }
-
-    if (event->type() == ui::ET_GESTURE_SCROLL_UPDATE ||
-        event->type() == ui::ET_GESTURE_SCROLL_BEGIN) {
-      ProcessUpdateEvent(*event);
-      event->SetHandled();
-      return;
-    }
-  }
-
-  ImageButton::OnGestureEvent(event);
-}
-
-void FrameMaximizeButton::SetVisible(bool visible) {
-  // In the enforced maximized mode we do not allow to be made visible.
-  if (ash::Shell::IsForcedMaximizeMode())
-    return;
-
-  views::View::SetVisible(visible);
-}
-
-void FrameMaximizeButton::ProcessStartEvent(const ui::LocatedEvent& event) {
-  DCHECK(is_snap_enabled_);
-  // Prepare the help menu.
-  if (!maximizer_) {
-    maximizer_.reset(new MaximizeBubbleController(
-        this,
-        GetMaximizeBubbleFrameState(),
-        bubble_appearance_delay_ms_));
-  } else {
-    // If the menu did not show up yet, we delay it even a bit more.
-    maximizer_->DelayCreation();
-  }
-  snap_sizer_.reset(NULL);
-  InstallEventFilter();
-  snap_type_ = SNAP_NONE;
-  press_location_ = event.location();
-  press_is_gesture_ = event.IsGestureEvent();
-  exceeded_drag_threshold_ = false;
-  update_timer_.Start(
-      FROM_HERE,
-      base::TimeDelta::FromMilliseconds(kUpdateDelayMS),
-      this,
-      &FrameMaximizeButton::UpdateSnapFromEventLocation);
-}
-
-void FrameMaximizeButton::ProcessUpdateEvent(const ui::LocatedEvent& event) {
-  DCHECK(is_snap_enabled_);
-  if (!exceeded_drag_threshold_) {
-    exceeded_drag_threshold_ = views::View::ExceededDragThreshold(
-        event.location() - press_location_);
-  }
-  if (exceeded_drag_threshold_)
-    UpdateSnap(event.location(), false, event.IsGestureEvent());
-}
-
-bool FrameMaximizeButton::ProcessEndEvent(const ui::LocatedEvent& event) {
-  update_timer_.Stop();
-  UninstallEventFilter();
-  bool should_snap = is_snap_enabled_;
-  is_snap_enabled_ = false;
-
-  // Remove our help bubble.
-  maximizer_.reset();
-
-  if (!should_snap || snap_type_ == SNAP_NONE)
-    return false;
-
-  SetState(views::CustomButton::STATE_NORMAL);
-  // SetState will not call SchedulePaint() if state was already set to
-  // STATE_NORMAL during a drag.
-  SchedulePaint();
-  phantom_window_.reset();
-  // Since Snap might destroy |this|, but the snap_sizer needs to be destroyed,
-  // The ownership of the snap_sizer is taken now.
-  scoped_ptr<SnapSizer> snap_sizer(snap_sizer_.release());
-  Snap(*snap_sizer.get());
-  return true;
-}
-
-void FrameMaximizeButton::Cancel(bool keep_menu_open) {
-  if (!keep_menu_open) {
-    maximizer_.reset();
-    UninstallEventFilter();
-    is_snap_enabled_ = false;
-    snap_sizer_.reset();
-  }
-  phantom_window_.reset();
-  snap_type_ = SNAP_NONE;
-  update_timer_.Stop();
-  SchedulePaint();
-}
-
-void FrameMaximizeButton::InstallEventFilter() {
-  if (escape_event_filter_)
-    return;
-
-  escape_event_filter_.reset(new EscapeEventFilter(this));
-}
-
-void FrameMaximizeButton::UninstallEventFilter() {
-  escape_event_filter_.reset(NULL);
-}
-
-void FrameMaximizeButton::UpdateSnapFromEventLocation() {
-  // If the drag threshold has been exceeded the snap location is up to date.
-  if (exceeded_drag_threshold_)
-    return;
-  exceeded_drag_threshold_ = true;
-  UpdateSnap(press_location_, false, press_is_gesture_);
-}
-
-void FrameMaximizeButton::UpdateSnap(const gfx::Point& location,
-                                     bool select_default,
-                                     bool is_touch) {
-  SnapType type = SnapTypeForLocation(location);
-  if (type == snap_type_) {
-    if (snap_sizer_) {
-      snap_sizer_->Update(LocationForSnapSizer(location));
-      phantom_window_->Show(ScreenAsh::ConvertRectToScreen(
-          frame_->GetWidget()->GetNativeView()->parent(),
-          snap_sizer_->target_bounds()));
-    }
-    return;
-  }
-
-  snap_type_ = type;
-  snap_sizer_.reset();
-  SchedulePaint();
-
-  if (snap_type_ == SNAP_NONE) {
-    phantom_window_.reset();
-    return;
-  }
-
-  if (snap_type_ == SNAP_LEFT || snap_type_ == SNAP_RIGHT) {
-    SnapSizer::Edge snap_edge = snap_type_ == SNAP_LEFT ?
-        SnapSizer::LEFT_EDGE : SnapSizer::RIGHT_EDGE;
-    SnapSizer::InputType input_type =
-        is_touch ? SnapSizer::TOUCH_MAXIMIZE_BUTTON_INPUT :
-                   SnapSizer::OTHER_INPUT;
-    snap_sizer_.reset(new SnapSizer(frame_->GetWidget()->GetNativeWindow(),
-                                    LocationForSnapSizer(location),
-                                    snap_edge,
-                                    input_type));
-    if (select_default)
-      snap_sizer_->SelectDefaultSizeAndDisableResize();
-  }
-  if (!phantom_window_) {
-    phantom_window_.reset(new internal::PhantomWindowController(
-                              frame_->GetWidget()->GetNativeWindow()));
-  }
-  if (maximizer_) {
-    phantom_window_->set_phantom_below_window(maximizer_->GetBubbleWindow());
-    maximizer_->SetSnapType(snap_type_);
-  }
-  phantom_window_->Show(
-      ScreenBoundsForType(snap_type_, *snap_sizer_.get()));
-}
-
-SnapType FrameMaximizeButton::SnapTypeForLocation(
-    const gfx::Point& location) const {
-  MaximizeBubbleFrameState maximize_type = GetMaximizeBubbleFrameState();
-  gfx::Vector2d delta(location - press_location_);
-  if (!views::View::ExceededDragThreshold(delta))
-    return maximize_type != FRAME_STATE_FULL ? SNAP_MAXIMIZE : SNAP_RESTORE;
-  if (delta.x() < 0 && delta.y() > delta.x() && delta.y() < -delta.x())
-    return maximize_type == FRAME_STATE_SNAP_LEFT ? SNAP_RESTORE : SNAP_LEFT;
-  if (delta.x() > 0 && delta.y() > -delta.x() && delta.y() < delta.x())
-    return maximize_type == FRAME_STATE_SNAP_RIGHT ? SNAP_RESTORE : SNAP_RIGHT;
-  if (delta.y() > 0)
-    return SNAP_MINIMIZE;
-  return maximize_type != FRAME_STATE_FULL ? SNAP_MAXIMIZE : SNAP_RESTORE;
-}
-
-gfx::Rect FrameMaximizeButton::ScreenBoundsForType(
-    SnapType type,
-    const SnapSizer& snap_sizer) const {
-  aura::Window* window = frame_->GetWidget()->GetNativeWindow();
-  switch (type) {
-    case SNAP_LEFT:
-    case SNAP_RIGHT:
-      return ScreenAsh::ConvertRectToScreen(
-          frame_->GetWidget()->GetNativeView()->parent(),
-          snap_sizer.target_bounds());
-    case SNAP_MAXIMIZE:
-      return ScreenAsh::ConvertRectToScreen(
-          window->parent(),
-          ScreenAsh::GetMaximizedWindowBoundsInParent(window));
-    case SNAP_MINIMIZE: {
-      gfx::Rect rect = GetMinimizeAnimationTargetBoundsInScreen(window);
-      if (!rect.IsEmpty()) {
-        // PhantomWindowController insets slightly, outset it so the phantom
-        // doesn't appear inset.
-        rect.Inset(-8, -8);
-      }
-      return rect;
-    }
-    case SNAP_RESTORE: {
-      const gfx::Rect* restore = GetRestoreBoundsInScreen(window);
-      return restore ?
-          *restore : frame_->GetWidget()->GetWindowBoundsInScreen();
-    }
-    case SNAP_NONE:
-      NOTREACHED();
-  }
-  return gfx::Rect();
-}
-
-gfx::Point FrameMaximizeButton::LocationForSnapSizer(
-    const gfx::Point& location) const {
-  gfx::Point result(location);
-  views::View::ConvertPointToScreen(this, &result);
-  return result;
-}
-
-void FrameMaximizeButton::Snap(const SnapSizer& snap_sizer) {
-  ash::Shell* shell = ash::Shell::GetInstance();
-  views::Widget* widget = frame_->GetWidget();
-  switch (snap_type_) {
-    case SNAP_LEFT:
-    case SNAP_RIGHT: {
-      shell->delegate()->RecordUserMetricsAction(
-          snap_type_ == SNAP_LEFT ?
-              ash::UMA_WINDOW_MAXIMIZE_BUTTON_MAXIMIZE_LEFT :
-              ash::UMA_WINDOW_MAXIMIZE_BUTTON_MAXIMIZE_RIGHT);
-      // Get the bounds in screen coordinates for restore purposes.
-      gfx::Rect restore = widget->GetWindowBoundsInScreen();
-      if (widget->IsMaximized() || widget->IsFullscreen()) {
-        aura::Window* window = widget->GetNativeWindow();
-        // In case of maximized we have a restore boundary.
-        DCHECK(ash::GetRestoreBoundsInScreen(window));
-        // If it was maximized we need to recover the old restore set.
-        restore = *ash::GetRestoreBoundsInScreen(window);
-
-        // The auto position manager will kick in when this is the only window.
-        // To avoid interference with it we tell it temporarily to not change
-        // the coordinates of this window.
-        wm::WindowSettings* settings = wm::GetWindowSettings(window);
-        bool was_managed = settings->window_position_managed();
-        settings->set_window_position_managed(false);
-
-        // Set the restore size we want to restore to.
-        ash::SetRestoreBoundsInScreen(window,
-                                      ScreenBoundsForType(snap_type_,
-                                                          snap_sizer));
-        widget->Restore();
-
-        // After the window is where we want it to be we allow the window to be
-        // auto managed again.
-        settings->set_window_position_managed(was_managed);
-      } else {
-        // Others might also have set up a restore rectangle already. If so,
-        // we should not overwrite the restore rectangle.
-        bool restore_set =
-            GetRestoreBoundsInScreen(widget->GetNativeWindow()) != NULL;
-        widget->SetBounds(ScreenBoundsForType(snap_type_, snap_sizer));
-        if (restore_set)
-          break;
-      }
-      // Remember the widow's bounds for restoration.
-      ash::SetRestoreBoundsInScreen(widget->GetNativeWindow(), restore);
-      break;
-    }
-    case SNAP_MAXIMIZE:
-      widget->Maximize();
-      shell->delegate()->RecordUserMetricsAction(
-          ash::UMA_WINDOW_MAXIMIZE_BUTTON_MAXIMIZE);
-      break;
-    case SNAP_MINIMIZE:
-      widget->Minimize();
-      shell->delegate()->RecordUserMetricsAction(
-          ash::UMA_WINDOW_MAXIMIZE_BUTTON_MINIMIZE);
-      break;
-    case SNAP_RESTORE:
-      widget->Restore();
-      shell->delegate()->RecordUserMetricsAction(
-          ash::UMA_WINDOW_MAXIMIZE_BUTTON_RESTORE);
-      break;
-    case SNAP_NONE:
-      NOTREACHED();
-  }
-}
-
-MaximizeBubbleFrameState
-FrameMaximizeButton::GetMaximizeBubbleFrameState() const {
-  // When there are no restore bounds, we are in normal mode.
-  if (!ash::GetRestoreBoundsInScreen(
-           frame_->GetWidget()->GetNativeWindow()))
-    return FRAME_STATE_NONE;
-  // The normal maximized test can be used.
-  if (frame_->GetWidget()->IsMaximized())
-    return FRAME_STATE_FULL;
-  // For Left/right maximize we need to check the dimensions.
-  gfx::Rect bounds = frame_->GetWidget()->GetWindowBoundsInScreen();
-  gfx::Rect screen = Shell::GetScreen()->GetDisplayNearestWindow(
-      frame_->GetWidget()->GetNativeView()).work_area();
-  if (bounds.width() < (screen.width() * kMinSnapSizePercent) / 100)
-    return FRAME_STATE_NONE;
-  // We might still have a horizontally filled window at this point which we
-  // treat as no special state.
-  if (bounds.y() != screen.y() || bounds.height() != screen.height())
-    return FRAME_STATE_NONE;
-
-  // We have to be in a maximize mode at this point.
-  if (bounds.x() == screen.x())
-    return FRAME_STATE_SNAP_LEFT;
-  if (bounds.right() == screen.right())
-    return FRAME_STATE_SNAP_RIGHT;
-  // If we come here, it is likely caused by the fact that the
-  // "VerticalResizeDoubleClick" stored a restore rectangle. In that case
-  // we allow all maximize operations (and keep the restore rectangle).
-  return FRAME_STATE_NONE;
-}
-
-}  // namespace ash