Revert 151752 - Move non SystemTray specific code to TrayBackgroundView

ash/system/tray/tray_background_view.cc

Index: ash/system/tray/tray_background_view.cc
===================================================================
--- ash/system/tray/tray_background_view.cc	(revision 151762)
+++ ash/system/tray/tray_background_view.cc	(working copy)
@@ -11,7 +11,6 @@
 #include "ash/system/status_area_widget_delegate.h"
 #include "ash/system/tray/tray_constants.h"
 #include "ui/aura/window.h"
-#include "ui/compositor/layer_animation_observer.h"
 #include "ui/gfx/canvas.h"
 #include "ui/gfx/skia_util.h"
 #include "ui/views/background.h"
@@ -33,33 +32,6 @@
 namespace ash {
 namespace internal {
 
-// Observe the tray layer animation and update the anchor when it changes.
-// TODO(stevenjb): Observe or mirror the actual animation, not just the start
-// and end points.
-class TrayLayerAnimationObserver : public ui::LayerAnimationObserver {
- public:
-  explicit TrayLayerAnimationObserver(TrayBackgroundView* host)
-      : host_(host) {
-  }
-
-  virtual void OnLayerAnimationEnded(ui::LayerAnimationSequence* sequence) {
-    host_->AnchorUpdated();
-  }
-
-  virtual void OnLayerAnimationAborted(ui::LayerAnimationSequence* sequence) {
-    host_->AnchorUpdated();
-  }
-
-  virtual void OnLayerAnimationScheduled(ui::LayerAnimationSequence* sequence) {
-    host_->AnchorUpdated();
-  }
-
- private:
-  TrayBackgroundView* host_;
-
-  DISALLOW_COPY_AND_ASSIGN(TrayLayerAnimationObserver);
-};
-
 class TrayBackground : public views::Background {
  public:
   TrayBackground() : alpha_(kTrayBackgroundAlpha) {}
@@ -159,9 +131,7 @@
       ALLOW_THIS_IN_INITIALIZER_LIST(hide_background_animator_(
           this, 0, kTrayBackgroundAlpha)),
       ALLOW_THIS_IN_INITIALIZER_LIST(hover_background_animator_(
-          this, 0, kTrayBackgroundHoverAlpha - kTrayBackgroundAlpha)),
-      ALLOW_THIS_IN_INITIALIZER_LIST(layer_animation_observer_(
-          new TrayLayerAnimationObserver(this))) {
+          this, 0, kTrayBackgroundHoverAlpha - kTrayBackgroundAlpha)) {
   set_notify_enter_exit_on_child(true);
 
   // Initially we want to paint the background, but without the hover effect.
@@ -174,16 +144,8 @@
 }
 
 TrayBackgroundView::~TrayBackgroundView() {
-  GetWidget()->GetNativeView()->layer()->GetAnimator()->RemoveObserver(
-      layer_animation_observer_.get());
 }
 
-void TrayBackgroundView::Initialize() {
-  GetWidget()->GetNativeView()->layer()->GetAnimator()->AddObserver(
-      layer_animation_observer_.get());
-  SetBorder();
-}
-
 void TrayBackgroundView::OnMouseEntered(const ui::MouseEvent& event) {
   hover_background_animator_.SetPaintsBackground(true,
       internal::BackgroundAnimator::CHANGE_ANIMATE);
@@ -198,21 +160,6 @@
   PreferredSizeChanged();
 }
 
-void TrayBackgroundView::OnPaintFocusBorder(gfx::Canvas* canvas) {
-  // The tray itself expands to the right and bottom edge of the screen to make
-  // sure clicking on the edges brings up the popup. However, the focus border
-  // should be only around the container.
-  if (GetWidget() && GetWidget()->IsActive())
-    DrawBorder(canvas, GetContentsBounds());
-}
-
-void TrayBackgroundView::AboutToRequestFocusFromTabTraversal(bool reverse) {
-  // Return focus to the login view. See crbug.com/120500.
-  views::View* v = GetNextFocusableView();
-  if (v)
-    v->AboutToRequestFocusFromTabTraversal(reverse);
-}
-
 bool TrayBackgroundView::PerformAction(const ui::Event& event) {
   return false;
 }