Make Selection#modify() with word granularity not to skip punctuation

third_party/WebKit/LayoutTests/editing/selection/modify_extend/extend_by_word_002.html

Index: third_party/WebKit/LayoutTests/editing/selection/modify_extend/extend_by_word_002.html
diff --git a/third_party/WebKit/LayoutTests/editing/selection/modify_extend/extend_by_word_002.html b/third_party/WebKit/LayoutTests/editing/selection/modify_extend/extend_by_word_002.html
index c267b56b0dce9fa166ec9927bbaa7c239a2296b4..301741f6e60a619a50d4855445e86afa01913eb3 100644
--- a/third_party/WebKit/LayoutTests/editing/selection/modify_extend/extend_by_word_002.html
+++ b/third_party/WebKit/LayoutTests/editing/selection/modify_extend/extend_by_word_002.html
@@ -29,12 +29,7 @@ test(() => assert_selection(
           `<li>${middot} <a href="foo.html">Soups & Salads</a></li>`,
           `<li>${middot} <a href="foo.html">Sandwiches & Burgers</a></li>`,
           isMac ? `<li>${middot} <a href="foo.html">Steak| & Ribs</a></li>`
-                // The current non-Mac behavior is wrong. The correct focus
-                // should be at 'Steak & |Ribs'. A deeper reason is that Blink
-                // performs backward word boundary searches to refine the final
-                // selection, which doesn't work with first-letter
-                // (crbug.com/671104).
-                : `<li>${middot} <a href="foo.html">Steak &| Ribs</a></li>`,
+                : `<li>${middot} <a href="foo.html">Steak |& Ribs</a></li>`,
           `<li>${middot} <a href="foo.html">Seafood</a></li>`,
           `<li>${middot} <a href="foo.html">Combos</a></li>`,
         '</ul>'