roll gyp 1758:1763

1759: Remove generator_handles_variants more.
1760: xcode: Remove unused function.
1761: Remove deprecated --msvs-version flag which is no longer used.
1762: ninja: Write gypcmd files into the output directory instead of the tree.
1763: Build fix after r1782

(Doesn't fully fix the rebuilds on the bots yet, because several nacl gypcmd files compete for the same filename and overwrite each other, so the "don't write if contents equal" mtime trick isn't effective. Will look into that next.)

BUG=297186
TBR=scottmg

Review URL: https://codereview.chromium.org/27342006

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@229630 0039d316-1c4b-4281-b951-d872f2087c98
Update .DEPS.git

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@229631 0039d316-1c4b-4281-b951-d872f2087c98
Set is_test_apk=1 for content_browsertests_apk.

Without this set, you won't get the android_tools target
built when building only content_browsertests_apk, which is needed
in order to run the test on a device.

In WebRTC, I'm adding buildbots using that target for building and
running content_browsertests in https://codereview.chromium.org/26738003/

I would like to avoid having to specify a separate target in
android_all.gyp just to get this build running, and I think all targets
should build their necessary dependencies.

TEST=local building of content_browsertests_apk + verifying the
host_forwarder was built.
BUG=305749

Review URL: https://codereview.chromium.org/27622005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@229632 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 229630
Remove the migration code for old font preferences.

The migration was introduced in May 2012 in crrev.com/137835 and
crrev.com/138219. We don't need to support migrating these old prefs
anymore; if someone has an old profile with them they will just be
ignored.

BUG=127372

Review URL: https://codereview.chromium.org/27703002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@229633 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 229633