[css-text-3] Add word-break:break-word as deprecated value

Closes #2390

css-text-3/Overview.bs

@@ -2004,7 +2004,7 @@ Line Breaking Details</h3>
 
     <pre class="propdef">
     Name: word-break
-    Value: normal | keep-all | break-all
+    Value: normal | keep-all | break-all | break-word
     Initial: normal
     Applies to: <a>inline boxes</a>
     Inherited: yes
@@ -2246,6 +2246,13 @@ Line Breaking Details</h3>
         word-break/word-break-break-all-004.html
       </wpt>
 
+    <p>For compatibility with legacy content,
+      the 'word-break' property also supports a deprecated <dfn value for=word-break>break-word</dfn> keyword.
+      When specified, this has the same effect as
+      ''word-break: normal'' and ''overflow-wrap: anywhere'',
+      regardless of the actual value of the 'overflow-wrap' property.
+      <!-- This is officially sad -->
+
   <h3 id="line-break-property">
     Line Breaking Strictness: the 'line-break' property</h3>
 
@@ -4683,6 +4690,7 @@ Changes</h2>
 
   * Clarify that ''hyphens: none'' does not suppress wrapping opportunities after U+002D or U+2010.
   * Fix stray text leftover when removing percentages as a possible value for word-spacing.
+  * Add support for ''word-break: break-word'' as a deprecated value, as needed for compatibility with this previously proprietary syntax.
 
   <h3 class="no-num" id="changes-2018-12-06">
   Changes from the <a href="https://www.w3.org/TR/2018/WD-css-text-3-20181206/">6 December 2018 Working Draft</a></h3>

css-text-3/issues-lc-2013.html

@@ -859,15 +859,17 @@ <h1>CSS Text Level 3 Disposition of Comments for 2013-10-10 LCWD</h1>
 <span class="oi">Closed:   Invalid</span>
 <span>Note:     Invalidated by issue 91.</span>
 <span>Resolved: Editor's discretion</span></pre>
-<pre class=' d' id='issue-94'>
+<pre class=' a' id='issue-94'>
 <span>Issue 94. <a href='#issue-94'>#</a></span>
 <span>Summary:  Add 'word-break: break-word' to spec</span>
 <span>Comment:  <a href='https://www.w3.org/mid/BLUPR03MB5524D8C851835C9CB3D1046AFCF0@BLUPR03MB552.namprd03.prod.outlook.com'>https://www.w3.org/mid/BLUPR03MB5524D8C851835C9CB3D1046AFCF0@BLUPR03MB552.namprd03.prod.outlook.com</a> <a href="mid:BLUPR03MB5524D8C851835C9CB3D1046AFCF0@BLUPR03MB552.namprd03.prod.outlook.com"><abbr title="Open Message">&#x2386;</abbr></a></span>
 <span>Comment:  <a href='https://code.google.com/p/chromium/issues/detail?id=492202'>https://code.google.com/p/chromium/issues/detail?id=492202</a></span>
 <span>Comment:  <a href='https://lists.w3.org/Archives/Public/www-style/2016Aug/0047.html'>https://lists.w3.org/Archives/Public/www-style/2016Aug/0047.html</a> <a href="https://www.w3.org/Mail/flatten/index?subject=https%3A%2F%2Flists.w3.org%2FArchives%2FPublic%2Fwww-style/2016Aug/0047.html"><abbr title="Thread">&#x2208;</abbr></a></span>
 <span>Comment:  <a href='https://github.com/w3c/csswg-drafts/issues/2390'>https://github.com/w3c/csswg-drafts/issues/2390</a></span>
-<span class="d">Closed:   Deferred</span>
-<span>Resolved: <a href='https://lists.w3.org/Archives/Public/www-style/2016Mar/0352.html'>https://lists.w3.org/Archives/Public/www-style/2016Mar/0352.html</a> <a href="https://www.w3.org/Mail/flatten/index?subject=https%3A%2F%2Flists.w3.org%2FArchives%2FPublic%2Fwww-style/2016Mar/0352.html"><abbr title="Thread">&#x2208;</abbr></a></span></pre>
+<span>Comment: <a href='https://lists.w3.org/Archives/Public/www-style/2016Mar/0352.html'>https://lists.w3.org/Archives/Public/www-style/2016Mar/0352.html</a> <a href="https://www.w3.org/Mail/flatten/index?subject=https%3A%2F%2Flists.w3.org%2FArchives%2FPublic%2Fwww-style/2016Mar/0352.html"><abbr title="Thread">&#x2208;</abbr></a></span>
+<span>Comment:  <a href='https://github.com/w3c/csswg-drafts/issues/2390#issuecomment-466736750'>https://github.com/w3c/csswg-drafts/issues/2390#issuecomment-466736750</a></span>
+<span class="a">Closed:   Accepted</span>
+<span>Resolved:  <a href='https://github.com/w3c/csswg-drafts/issues/2390#issuecomment-467685010'>https://github.com/w3c/csswg-drafts/issues/2390#issuecomment-467685010</a></span></pre>
 <pre class=' a' id='issue-95'>
 <span>Issue 95. <a href='#issue-95'>#</a></span>
 <span>Summary:  Legacy line-breaking rules for replaced elements</span>

css-text-3/issues-lc-2013.txt

@@ -834,8 +834,10 @@ Comment:  https://www.w3.org/mid/BLUPR03MB5524D8C851835C9CB3D1046AFCF0@BLUPR03MB
 Comment:  https://code.google.com/p/chromium/issues/detail?id=492202
 Comment:  https://lists.w3.org/Archives/Public/www-style/2016Aug/0047.html
 Comment:  https://github.com/w3c/csswg-drafts/issues/2390
-Closed:   Deferred
-Resolved: https://lists.w3.org/Archives/Public/www-style/2016Mar/0352.html
+Comment: https://lists.w3.org/Archives/Public/www-style/2016Mar/0352.html
+Comment:  https://github.com/w3c/csswg-drafts/issues/2390#issuecomment-466736750
+Closed:   Accepted
+Resolved:  https://github.com/w3c/csswg-drafts/issues/2390#issuecomment-467685010
 ----
 Issue 95.
 Summary:  Legacy line-breaking rules for replaced elements

css-text-3/test-coverage.html

@@ -247,6 +247,7 @@ <h3 id="breaking-rules-for-letters-the-word-break-property"><a href="https://dra
 	<li>Symbols that line-break the same way as letters of a particular category are affected the same way as those letters.
 	<li>does not suppress <code>&lt;wbr></code>
 	<li>line-break:anywhere wins over word-break:keep-all
+	<li>tests for word-break:break-word
 </ul>
 
 <p>Covered, but could have more: