Remove style spans to follow the styles of list item

third_party/WebKit/LayoutTests/editing/deleting/backspace-merge-into-list-item.html

Index: third_party/WebKit/LayoutTests/editing/deleting/backspace-merge-into-list-item.html
diff --git a/third_party/WebKit/LayoutTests/editing/deleting/backspace-merge-two-paragraphs.html b/third_party/WebKit/LayoutTests/editing/deleting/backspace-merge-into-list-item.html
similarity index 66%
copy from third_party/WebKit/LayoutTests/editing/deleting/backspace-merge-two-paragraphs.html
copy to third_party/WebKit/LayoutTests/editing/deleting/backspace-merge-into-list-item.html
index 20e8676ad81446d4e17f9bddf627e357544da051..5c15411420dcbe9ee16c10acec4e5b3ef6b25fc7 100644
--- a/third_party/WebKit/LayoutTests/editing/deleting/backspace-merge-two-paragraphs.html
+++ b/third_party/WebKit/LayoutTests/editing/deleting/backspace-merge-into-list-item.html
@@ -2,15 +2,19 @@
 <script src="../../resources/testharness.js"></script>
 <script src="../../resources/testharnessreport.js"></script>
 <style>
-div {
-  border: 1px solid gray;
-  padding: 10px;
-  line-height: 1.44;
+#editable p {
+	font-size: 20px;
+	line-height: 22px;
+	color: red;
 }
 </style>
 <div contenteditable="true" id="editable">
-  <p>This is the first paragraph.</p>
-  <p>This is the second.</p>
+<ul>
+    <li>list item 1</li>
+    <li>list item 2</li>
+    <li>list item 3</li>
+  </ul>
+  <p>Paragraph</p>
 </div>
 <script>
 test(function() {
@@ -24,7 +28,7 @@ test(function() {
   editor.focus();
   document.execCommand('delete', null, false);

[yosin_UTC9, 2016/06/22 03:53:15]

nit: we don't need to have |null, false|.

 
-  var html_para = document.getElementsByTagName('p')[0].outerHTML;
-  assert_equals(html_para, '<p>This is the first paragraph.This is the second.</p>');
+  var html_para = document.getElementsByTagName('li')[2].outerHTML;

[yosin_UTC9, 2016/06/22 03:53:15]

nit: Please use camelStyle name, e.g. |htmlPara|

+  assert_equals(html_para, '<li>list item 3Paragraph</li>');
 }, 'merge two paragraphs by backspace');
 </script>