Add platform hook for View style props

Libraries/Components/View/PlatformViewStylePropTypes.android.js

@@ -0,0 +1,20 @@
+/**
+ * Copyright (c) 2015-present, Facebook, Inc.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @providesModule PlatformViewStylePropTypes
+ * @flow
+ */
+
+module.export = {
+  /**
+   * (Android-only) Sets the elevation of a view, using Android's underlying
+   * [elevation API](https://developer.android.com/training/material/shadows-clipping.html#Elevation).
+   * This adds a drop shadow to the item and affects z-order for overlapping views.
+   * Only supported on Android 5.0+, has no effect on earlier versions.
+   * @platform android
+   */
+  elevation: ReactPropTypes.number,
+};

Libraries/Components/View/PlatformViewStylePropTypes.ios.js

@@ -0,0 +1,11 @@
+/**
+ * Copyright (c) 2015-present, Facebook, Inc.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @providesModule PlatformViewStylePropTypes
+ * @flow
+ */
+
+module.export = {};

Libraries/Components/View/ViewStylePropTypes.js

@@ -12,6 +12,7 @@
 var ColorPropType = require('ColorPropType');
 var LayoutPropTypes = require('LayoutPropTypes');
 var ReactPropTypes = require('prop-types');
+var PlatformViewStylePropTypes = require('PlatformViewStylePropTypes');
 var ShadowPropTypesIOS = require('ShadowPropTypesIOS');
 var TransformPropTypes = require('TransformPropTypes');
 
@@ -20,6 +21,7 @@ var TransformPropTypes = require('TransformPropTypes');
  */
 var ViewStylePropTypes = {
   ...LayoutPropTypes,
+  ...PlatformViewStylePropTypes,
   ...ShadowPropTypesIOS,
   ...TransformPropTypes,
   backfaceVisibility: ReactPropTypes.oneOf(['visible', 'hidden']),
@@ -47,14 +49,6 @@ var ViewStylePropTypes = {
   borderBottomWidth: ReactPropTypes.number,
   borderLeftWidth: ReactPropTypes.number,
   opacity: ReactPropTypes.number,
-  /**
-   * (Android-only) Sets the elevation of a view, using Android's underlying
-   * [elevation API](https://developer.android.com/training/material/shadows-clipping.html#Elevation).
-   * This adds a drop shadow to the item and affects z-order for overlapping views.
-   * Only supported on Android 5.0+, has no effect on earlier versions.
-   * @platform android
-   */
-  elevation: ReactPropTypes.number,
 };
 
 module.exports = ViewStylePropTypes;