Temporarily suppress fast/repaint/fixed-in-page-scale.html failures

This patch marks fast/repaint/fixed-in-page-scale.html as timing out on
windows. For more information, see the bug.

http://test-results.appspot.com/dashboards/flakiness_dashboard.html#tests=fast%2Frepaint%2Ffixed-in-page-scale.html&showExpectations=true

TBR=bokan
BUG=528421
NOTRY=true

Review URL: https://codereview.chromium.org/1301423007

git-svn-id: svn://svn.chromium.org/blink/trunk@201819 bbb929c8-8fbe-4397-9dbb-9b2b20218538

third_party/WebKit/LayoutTests/SlowTests

@@ -160,6 +160,8 @@ crbug.com/490511 imported/web-platform-tests/html/syntax/parsing/html5lib_tests1
 crbug.com/490511 imported/web-platform-tests/html/syntax/parsing/html5lib_tests19.html [ Slow ]
 crbug.com/490511 imported/web-platform-tests/html/syntax/parsing/html5lib_tests2.html [ Slow ]
 
+crbug.com/528421 [ Win ] fast/repaint/fixed-in-page-scale.html [ Slow ]
+
 # FIXME: These tests might still be buggy and time out. They were marked as Slow on 9/20/2013.
 # Double-check the data after they've been running another week or so.
 webkit.org/b/58193 [ Win7 ] http/tests/local/fileapi/send-sliced-dragged-file.html [ Slow ]