Merge MB from trunk back to M45.
In order to be able to build the official linux x64 builds with GN
on trunk and GYP on the branches, we need to have the latest version
of MB on the branches for consistency (so that we can flip configs
without having to worry about not having all of the needful bug fixes
on the branch).
[email protected]
BUG=530733
Review URL: https://codereview.chromium.org/1370593003 .
Cr-Commit-Position: refs/branch-heads/2454@{#504}
Cr-Branched-From: 12bfc3360892ec53cd00fc239a47e5298beb063b-refs/heads/master@{#338390}
8 files changed
