Correctly resolve relative paths when inlining @import directives in CSS files.

TBR=bauerb@chromium.org
BUG=176233

Committing for bauerb@chromium.org, patch from issue 12271020.

Review URL: https://codereview.chromium.org/12261055

git-svn-id: http://grit-i18n.googlecode.com/svn/trunk@110 7262f16d-afe8-6277-6482-052fa10e57b1
2 files changed