Hide hover effect on hidden ink drop host views.

ui/views/animation/ink_drop_factory.cc

 // Copyright 2015 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_factory.h"
 
 #include "base/macros.h"
 #include "base/memory/ptr_util.h"
 #include "ui/base/material_design/material_design_controller.h"
 #include "ui/gfx/geometry/rect.h"
@@ skipping 10 matching lines @@
 // not enabled.
 class InkDropStub : public InkDrop {
  public:
   InkDropStub() {}
   ~InkDropStub() override {}
 
   // InkDrop:
   InkDropState GetTargetInkDropState() const override {
     return InkDropState::HIDDEN;
   }
-  bool IsVisible() const override { return false; }
   void AnimateToState(InkDropState state) override {}
   void SnapToActivated() override {}
   void SetHovered(bool is_hovered) override {}
   void SetFocused(bool is_hovered) override {}
 
  private:
   DISALLOW_COPY_AND_ASSIGN(InkDropStub);
 };
 
 }  // namespace
 
 InkDropFactory::InkDropFactory() {}
 
 InkDropFactory::~InkDropFactory() {}
 
 std::unique_ptr<InkDrop> InkDropFactory::CreateInkDrop(
     InkDropHost* ink_drop_host) {
   if (ui::MaterialDesignController::IsModeMaterial()) {
     return base::WrapUnique(new InkDropImpl(ink_drop_host));
   }
 
   return base::WrapUnique(new InkDropStub());
 }
 
 }  // namespace views