Moved ButtonInkDropDelegate logic into InkDropHostView and deleted InkDropDelegates.

ui/views/animation/test/test_ink_drop.cc

Index: ui/views/animation/test/test_ink_drop.cc
diff --git a/ui/views/animation/test/test_ink_drop.cc b/ui/views/animation/test/test_ink_drop.cc
new file mode 100644
index 0000000000000000000000000000000000000000..523c9ad6ad92795638f3406111915278e2643a35
--- /dev/null
+++ b/ui/views/animation/test/test_ink_drop.cc
@@ -0,0 +1,32 @@
+// 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/test/test_ink_drop.h"
+
+namespace views {
+namespace test {
+
+TestInkDrop::TestInkDrop() : state_(InkDropState::HIDDEN), is_hovered_(false) {}
+TestInkDrop::~TestInkDrop() {}
+
+InkDropState TestInkDrop::GetTargetInkDropState() const {
+  return state_;
+}
+
+void TestInkDrop::AnimateToState(InkDropState ink_drop_state) {
+  state_ = ink_drop_state;
+}
+
+void TestInkDrop::SnapToActivated() {
+  state_ = InkDropState::ACTIVATED;
+}
+
+void TestInkDrop::SetHovered(bool is_hovered) {
+  is_hovered_ = is_hovered;
+}
+
+void TestInkDrop::SetFocused(bool is_focused) {}
+
+}  // namespace test
+}  // namespace views