Change how NGConstraintSpaceBuilder specified destination space.
The way writing_mode for NGConstraintSpaceBuilder was set was
confusing. This change makes the API more explicit about how
output writing mode is set.
NGConstraintSpaceBuilder::writing_mode_ is eliminated
NGConstraintSpaceBuilder::SetWritingMode is eliminated
instead, writing mode becomes a parameter to:
NGConstraintSpaceBuilder::ToConstraintSpace(NGWritingMode output_mode)
BUG=635619
Review-Url: https://codereview.chromium.org/2692643002
Cr-Commit-Position: refs/heads/master@{#450163}
14 files changed