Add a configurable flag entry for font src: local() matching

Expose the feature flag as a chrome://flags configurable value.

Also remove obsolete kFontCacheScalingDescription declaration.

Bug: 867866
Change-Id: Ib674bd0845d228bc82c67a342c19ace8f39cb157
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1660343
Commit-Queue: Dominik Röttsches <[email protected]>
Reviewed-by: Stephen Chenney <[email protected]>
Cr-Commit-Position: refs/heads/master@{#669738}
5 files changed