DevTools gardening: rebaseline http/tests/inspector/resource-parameters.html on windows.

The test reports content length 15 after switching to Apache-win32 on windows.

TBR=eustas@chromium.org
BUG=

Review URL: https://codereview.chromium.org/438543002

git-svn-id: svn://svn.chromium.org/blink/trunk@179304 bbb929c8-8fbe-4397-9dbb-9b2b20218538