Remove pp_ifdef from grd files in ui/.

Generated using:
> cd src/ui
> git grep -l pp_ifdef | xargs sed -i "s:pp_ifdef('\([^']\+\)'):\1:g"

BUG=343235
R=arv@chromium.org, joi@chromium.org, oshima@chromium.org

Review URL: https://codereview.chromium.org/161313002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@251895 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 251895
Remove the --ui-enable-threaded-compositing flag.

We're not planning to enable this on any new platforms, so we can just
hardcode it off when not on ChromeOS. Leaving the disable flag for
ChromeOS for now, as we're working on disabling that code path there.

R=piman
BUG=

Review URL: https://codereview.chromium.org/167973003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@251896 0039d316-1c4b-4281-b951-d872f2087c98
Exclude Translate Bubble strings from non Views builds.

BUG=326023

Review URL: https://codereview.chromium.org/167703002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@251897 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 251897