Hide hover effect on hidden ink drop host views.

ui/views/animation/ink_drop_host_view.cc

 // 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/views/animation/ink_drop_host_view.h"
 
 #include "ui/gfx/color_palette.h"
 #include "ui/gfx/geometry/size_conversions.h"
 #include "ui/views/animation/ink_drop.h"
 #include "ui/views/animation/ink_drop_hover.h"
@@ skipping 54 matching lines @@
 }
 
 std::unique_ptr<InkDropHover> InkDropHostView::CreateInkDropHover() const {
   std::unique_ptr<InkDropHover> hover(
       new InkDropHover(ink_drop_size_, kInkDropSmallCornerRadius,
                        GetInkDropCenter(), GetInkDropBaseColor()));
   hover->set_explode_size(CalculateLargeInkDropSize(ink_drop_size_));
   return hover;
 }
 
+void InkDropHostView::VisibilityChanged(View* starting_from, bool is_visible) {
+  View::VisibilityChanged(starting_from, is_visible);
+  if (ink_drop_delegate() && GetWidget() && !is_visible) {
+    ink_drop_delegate()->GetInkDrop()->AnimateToState(InkDropState::HIDDEN);
+    ink_drop_delegate()->GetInkDrop()->SetHovered(false);
+  }
+}
+
 void InkDropHostView::OnFocus() {
   views::View::OnFocus();
   if (ink_drop_delegate() && ShouldShowInkDropForFocus())
     ink_drop_delegate()->GetInkDrop()->SetFocused(true);
 }
 
 void InkDropHostView::OnBlur() {
   views::View::OnBlur();
   if (ink_drop_delegate() && ShouldShowInkDropForFocus())
     ink_drop_delegate()->GetInkDrop()->SetFocused(false);
 }
 
 gfx::Point InkDropHostView::GetInkDropCenter() const {
   return GetLocalBounds().CenterPoint();
 }
 
 SkColor InkDropHostView::GetInkDropBaseColor() const {
   NOTREACHED();
   return gfx::kPlaceholderColor;
 }
 
 bool InkDropHostView::ShouldShowInkDropForFocus() const {
   return false;
 }
 
 }  // namespace views