IndexedDB: Update browser tests to test for IDB exception codes.
IndexedDB: Update browser tests to test for IDB exception codes.

Test doing something that should throw an exception, and make
sure the exception code is as expected.

This depends on WebKit r74188.

BUG=67006
TEST=browser_tests

Review URL: http://codereview.chromium.org/5904004

git-svn-id: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@69528 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser