More files I accidentally deleted instead of moving.

sky/sdk/lib/theme/shadows.dart

Index: sky/sdk/lib/theme/shadows.dart
diff --git a/sky/sdk/lib/theme/shadows.dart b/sky/sdk/lib/theme/shadows.dart
new file mode 100644
index 0000000000000000000000000000000000000000..4f5697fdeb663c3d5901eeef565522b5309eb95a
--- /dev/null
+++ b/sky/sdk/lib/theme/shadows.dart
@@ -0,0 +1,60 @@
+// 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.
+
+import 'dart:sky' show Color, Size;
+
+import '../painting/box_painter.dart';
+
+const Map<int, List<BoxShadow>> shadows = const {
+  1: const [
+    const BoxShadow(
+      color: const Color(0x1F000000),
+      offset: const Size(0.0, 1.0),
+      blur: 3.0),
+    const BoxShadow(
+      color: const Color(0x3D000000),
+      offset: const Size(0.0, 1.0),
+      blur: 2.0),
+    ],
+  2: const [
+    const BoxShadow(
+      color: const Color(0x29000000),
+      offset: const Size(0.0, 3.0),
+      blur: 6.0),
+    const BoxShadow(
+      color: const Color(0x3B000000),
+      offset: const Size(0.0, 3.0),
+      blur: 6.0),
+  ],
+  3: const [
+    const BoxShadow(
+      color: const Color(0x30000000),
+      offset: const Size(0.0, 10.0),
+      blur: 20.0),
+    const BoxShadow(
+      color: const Color(0x3B000000),
+      offset: const Size(0.0, 6.0),
+      blur: 6.0),
+  ],
+  4: const [
+    const BoxShadow(
+      color: const Color(0x40000000),
+      offset: const Size(0.0, 14.0),
+      blur: 28.0),
+    const BoxShadow(
+      color: const Color(0x38000000),
+      offset: const Size(0.0, 10.0),
+      blur: 10.0),
+  ],
+  5: const [
+    const BoxShadow(
+      color: const Color(0x4E000000),
+      offset: const Size(0.0, 19.0),
+      blur: 28.0),
+    const BoxShadow(
+      color: const Color(0x38000000),
+      offset: const Size(0.0, 15.0),
+      blur: 12.0),
+  ],
+};