Write sources from flattenhtml to depfiles.

Previously, only explicit inputs were written to depfiles. This patch adds any includes in files marked "flattenhtml=true" which are also dependencies of the .grd file.

BUG=http://crbug.com/519860
Review=https://codereview.chromium.org/1320683002/


git-svn-id: http://grit-i18n.googlecode.com/svn/trunk@196 7262f16d-afe8-6277-6482-052fa10e57b1
2 files changed