Make sure input.size is a property.

   - Will get IndexSizeError when set input.size="auto".
   - Make 'size' an attribute, so that always use dom.setAttribute.

Author: cyjia

packages/dom-helper/lib/prop.js

@@ -57,7 +57,10 @@ var ATTR_OVERRIDES = {
     // Chrome 46.0.2464.0: 'autocorrect' in document.createElement('input') === false
     // Safari 8.0.7: 'autocorrect' in document.createElement('input') === false
     // Mobile Safari (iOS 8.4 simulator): 'autocorrect' in document.createElement('input') === true
-    autocorrect: true
+    autocorrect: true,
+    // Will throw an exception(https://github.com/emberjs/ember.js/issues/12413),
+    // if you set input.size = 'auto'
+    size: true
   },
 
   // element.form is actually a legitimate readOnly property, that is to be

packages/dom-helper/tests/prop-test.js

@@ -3,7 +3,7 @@ import { normalizeProperty } from 'dom-helper/prop';
 QUnit.module('dom-helper prop');
 
 test('type.attr, for element props that for one reason or another need to be treated as attrs', function() {
-  expect(13);
+  expect(14);
 
   [
     { tagName: 'TEXTAREA', key: 'form' },
@@ -12,6 +12,7 @@ test('type.attr, for element props that for one reason or another need to be tre
     { tagName: 'INPUT',    key: 'list' },
     { tagName: 'INPUT',    key: 'form' },
     { tagName: 'INPUT',    key: 'autocorrect' },
+    { tagName: 'INPUT',    key: 'size' },
     { tagName: 'OPTION',   key: 'form' },
     { tagName: 'INPUT',    key: 'form' },
     { tagName: 'BUTTON',   key: 'form' },