Moved render_font to a common location to share with other content.
This patch moves the render_font_warmup_win files into a common
location so that other content processes, especially PPAPI can
share the code. This is needed as a warmup to pushing win32k lockdown
to other content processes.

BUG=523278

Review URL: https://codereview.chromium.org/1326623002

Cr-Commit-Position: refs/heads/master@{#348779}
9 files changed