android envsetup: Stop setting use_libffmpeg=0 for x86 targets.

It's already set to 0 for all targets for OS==android in common.gypi.
No intended functionality change.

BUG=330631
NOTRY=true

Review URL: https://codereview.chromium.org/147863002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@247259 0039d316-1c4b-4281-b951-d872f2087c98
android envsetup: Delete bitrotted comments.

BUG=330631
NOTRY=true

Review URL: https://codereview.chromium.org/133183003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@247260 0039d316-1c4b-4281-b951-d872f2087c98
Blink roll 165846:165856

http://build.chromium.org/f/chromium/perf/dashboard/ui/changelog_blink.html?url=/trunk&range=165847:165856&mode=html
TBR=
BUG=

Review URL: https://codereview.chromium.org/147013004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@247261 0039d316-1c4b-4281-b951-d872f2087c98
Update .DEPS.git

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@247262 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 247262