Revert of Speculative fix for sticky keys overlay crash. (patchset #2 id:20001 of https://codereview.chromium.org/754763005/)

Reason for revert:
StickyKeysBrowserTest leaking memory.

Original issue's description:
> Speculative fix for sticky keys overlay crash.
>
> The new test case reproduces the same stack trace as in the bug, so it's very
> probable that this case is causing the crash.
>
> BUG=435600
>
> Committed: https://crrev.com/9391c0e45bc3ae50008d0aebf11437550e7f38c6
> Cr-Commit-Position: refs/heads/master@{#306504}

TBR=jamescook@chromium.org,tengs@chromium.org
NOTREECHECKS=true
NOTRY=true
BUG=435600

Review URL: https://codereview.chromium.org/757433005

Cr-Commit-Position: refs/heads/master@{#306529}

1 files changed, 0 insertions, 12 deletions

diff --git a/ash/sticky_keys/sticky_keys_overlay.cc b/ash/sticky_keys/sticky_keys_overlay.cc
index 464d9f6..0766ba25 100644
--- a/ash/sticky_keys/sticky_keys_overlay.cc
+++ b/ash/sticky_keys/sticky_keys_overlay.cc
@@ -109,7 +109,6 @@ class StickyKeysOverlayView : public views::WidgetDelegateView {
 
   // views::WidgetDelegateView overrides:
   void OnPaint(gfx::Canvas* canvas) override;
-  void DeleteDelegate() override;
 
   void SetKeyState(ui::EventFlags modifier, StickyKeyState state);
 
@@ -167,13 +166,6 @@ void StickyKeysOverlayView::OnPaint(gfx::Canvas* canvas) {
   views::WidgetDelegateView::OnPaint(canvas);
 }
 
-void StickyKeysOverlayView::DeleteDelegate() {
-  // The ownership of a WidgetDelegateView is kind of tricky. It has the
-  // lifetime semantics of both a View and a WidgetDelegate. We should just rely
-  // on the Views semantics and do nothing here. This object will be deleted
-  // when the parent widget is deleted.
-}
-
 void StickyKeysOverlayView::SetKeyState(ui::EventFlags modifier,
                                         StickyKeyState state) {
   ModifierLabelMap::iterator it = modifier_label_map_.find(modifier);
@@ -287,10 +279,6 @@ StickyKeyState StickyKeysOverlay::GetModifierKeyState(
   return overlay_view_->GetKeyState(modifier);
 }
 
-views::Widget* StickyKeysOverlay::GetWidgetForTesting() {
-  return overlay_widget_.get();
-}
-
 gfx::Rect StickyKeysOverlay::CalculateOverlayBounds() {
   int x = is_visible_ ? kHorizontalOverlayOffset : -widget_size_.width();
   return gfx::Rect(gfx::Point(x, kVerticalOverlayOffset), widget_size_);