[ash-md] Added ink drop to system menu rows that inherit from ActionableView.

ash/common/system/tray/tray_item_more.cc

Index: ash/common/system/tray/tray_item_more.cc
diff --git a/ash/common/system/tray/tray_item_more.cc b/ash/common/system/tray/tray_item_more.cc
index 4638c410bf375c4071f61e02a483a6d8ff1297b9..d1bf2fff9027ba79e5a93bc5341fc0b0e199cc9c 100644
--- a/ash/common/system/tray/tray_item_more.cc
+++ b/ash/common/system/tray/tray_item_more.cc
@@ -52,6 +52,9 @@ TrayItemMore::TrayItemMore(SystemTrayItem* owner, bool show_more)
   } else {
     tri_view->SetContainerVisible(TriView::Container::END, false);
   }
+
+  if (MaterialDesignController::IsSystemTrayMenuMaterial())
+    SetInkDropMode(InkDropHostView::InkDropMode::ON);
 }
 
 TrayItemMore::~TrayItemMore() {}