Readd TestExpectations lines for websocket tests

Two websocket tests are still failing.

See https://codereview.chromium.org/162923002 for the change that removed these
lines.

Example of the failure:
http://build.chromium.org/p/chromium.webkit/builders/WebKit%20Win7/builds/13889

TBR=ricea@chromium.org
BUG=

Review URL: https://codereview.chromium.org/187913003

git-svn-id: svn://svn.chromium.org/blink/trunk@168546 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Use less conservative condition when detecting noncharacter unicode symbols

All noncharacter code points are >= 0xD800 so we can use more liberal condition when detecing characters that needs to be esscaped.

BUG=347899

Review URL: https://codereview.chromium.org/180113008

git-svn-id: svn://svn.chromium.org/blink/trunk@168547 bbb929c8-8fbe-4397-9dbb-9b2b20218538