[Android] Add a native pull-to-refresh overscroll effect

ui/base/android/system_ui_resource_type.h

Index: ui/base/android/system_ui_resource_type.h
diff --git a/ui/base/android/system_ui_resource_type.h b/ui/base/android/system_ui_resource_type.h
new file mode 100644
index 0000000000000000000000000000000000000000..f4496a3e0745afc1e88a3d6c182eeb383c10e271
--- /dev/null
+++ b/ui/base/android/system_ui_resource_type.h
@@ -0,0 +1,24 @@
+// Copyright 2014 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.
+
+#ifndef UI_BASE_ANDROID_SYSTEM_UI_RESOURCE_TYPE_H_
+#define UI_BASE_ANDROID_SYSTEM_UI_RESOURCE_TYPE_H_
+
+namespace ui {
+
+// A Java counterpart will be generated for this enum.
+// GENERATED_JAVA_ENUM_PACKAGE: org.chromium.ui
+enum SystemUIResourceType {
+  OVERSCROLL_EDGE,
+  OVERSCROLL_GLOW,
+  OVERSCROLL_GLOW_L,
+  OVERSCROLL_REFRESH_IDLE,
+  OVERSCROLL_REFRESH_ACTIVE,
+  SYSTEM_UI_RESOURCE_TYPE_FIRST = OVERSCROLL_EDGE,
+  SYSTEM_UI_RESOURCE_TYPE_LAST = OVERSCROLL_REFRESH_ACTIVE
+};
+
+}  // namespace ui
+
+#endif  // UI_BASE_ANDROID_SYSTEM_UI_RESOURCE_TYPE_H_