commit ccfc790f32d4c67a990216da5fb3d769ea9939f5
author tfarina <tfarina@chromium.org> Thu Dec 03 13:07:18 2015 -0800
committer Commit bot <commit-bot@chromium.org> Thu Dec 03 21:07:59 2015 +0000
tree 4afe77f103542ede5e6de8c5cfcb04ad41f0df9a
parent 53717a230c8df920022435c14a5775c1e9460e25

tools/gn: forward declare some base types in trace.h

CommandLine and FilePath are being passed by reference, so they can be
forward declared and their header includes be moved to the source file
instead.

BUG=None
TEST=gn gen + gn_unittests
R=scottmg@chromium.org

Review URL: https://codereview.chromium.org/1492813002

Cr-Original-Commit-Position: refs/heads/master@{#363056}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: 7741ab4958dec364e2d5f43d678bda53fc2465fa