Updated Khronos GLES2 headers. (Take 2, Original: https://codereview.chromium.org/99053007/)

There was a type conflict between the previous, out of date headers and the more
recent ones included in ANGLE that was causing failures on 64-bit Windows.

BUG=326382
TBR=kbr@chromium.org, piman@chromium.org, raymes@chromium.org, robertphillips@google.com

Review URL: https://codereview.chromium.org/115143004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@242740 0039d316-1c4b-4281-b951-d872f2087c98
Update .DEPS.git

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@242741 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 242741