Support sideloaded fonts via command line option for blink layout_tests
Blink side is: https://codereview.chromium.org/
235553003/ which
must land and roll first.
Adds support for --register-font-files which adds the given
file(s) to the sandbox policy (readonly), creates and warms up
the font, and passes it to blink.
Also, modify the setup code for layout tests so "Ahem" will be
found correctly.
R=jschuh@chromium.org,eae@chromium.org
BUG=333029
TEST=out\debug\content_shell d:\src\tmp\a.html --enable-direct-write --register-font-files=D:\src\cr3\src\content\shell\renderer\test_runner\resources\fonts\AHEM____.TTF
TEST=ninja -C out\Debug blink_tests && webkit\tools\layout_tests\run_webkit_tests fast/parser/fonts.html --debug --nocheck-sys-deps (with directwrite forced on)
Review URL: https://codereview.chromium.org/
231763003
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@263842 0039d316-1c4b-4281-b951-d872f2087c98