Increase the value of kViewChangeTimeoutSec under ThreadSanitizer.
This is necessary to fix OutOfProcessPPAPITest.View_PageHideShow under TSan

BUG=109336,327351
R=brettw@chromium.org

Review URL: https://codereview.chromium.org/155763003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@250057 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 250057