Fixes ink drop being "stuck" on when losing focus.

ui/views/animation/test/test_ink_drop_delegate.h

Index: ui/views/animation/test/test_ink_drop_delegate.h
diff --git a/ui/views/animation/test/test_ink_drop_delegate.h b/ui/views/animation/test/test_ink_drop_delegate.h
index ec9b7c9626b1a7ad75d6feb53c5d065411e8980a..12e1e4947149306b64c19ce003242d9dbe5e382c 100644
--- a/ui/views/animation/test/test_ink_drop_delegate.h
+++ b/ui/views/animation/test/test_ink_drop_delegate.h
@@ -6,6 +6,7 @@
 #define UI_VIEWS_ANIMATION_TEST_TEST_INK_DROP_DELEGATE_H_
 
 #include "base/macros.h"
+#include "base/memory/ptr_util.h"
 #include "ui/views/animation/ink_drop_delegate.h"
 
 namespace views {
@@ -30,6 +31,8 @@ class TestInkDropDelegate : public InkDropDelegate {
 
   bool is_hovered_;
 
+  std::unique_ptr<InkDrop> ink_drop_;
+
   DISALLOW_COPY_AND_ASSIGN(TestInkDropDelegate);
 };