Test update for r96893.
https://bugs.webkit.org/show_bug.cgi?id=53752

r96893 changed the behavior of dataset-gc.html and
dataset-xhtml.xhtml. We update these tests because the new
behavior matches to Firefox and Opera.

* fast/dom/dataset-gc-expected.txt:
* fast/dom/dataset-xhtml-expected.txt:
* fast/dom/script-tests/dataset-gc.js:
* fast/dom/script-tests/dataset-xhtml.js:
* platform/chromium/test_expectations.txt:

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@96911 268f45cc-cd09-0410-ab3c-d52691b4dbfc
diff --git a/LayoutTests/fast/dom/dataset-xhtml-expected.txt b/LayoutTests/fast/dom/dataset-xhtml-expected.txt
index 93ff7d2..7f40038 100644
--- a/LayoutTests/fast/dom/dataset-xhtml-expected.txt
+++ b/LayoutTests/fast/dom/dataset-xhtml-expected.txt
@@ -34,7 +34,7 @@
 PASS testDelete('data-', '') is true
 PASS testDelete('data-à', 'à') is true
 
-PASS testDelete('dummy', '-foo') threw exception Error: SYNTAX_ERR: DOM Exception 12.
+PASS testDelete('dummy', '-foo') is false
 
 PASS testForIn(['data-foo', 'data-bar', 'data-baz']) is 3
 PASS testForIn(['data-foo', 'data-bar', 'dataFoo']) is 2