In some parts of ANGLE code, we were using std::vector::data to get
a pointer to the first element. Sadly, this is c++11 only, which
isn't currently supported on Chromium. This was causing a breakage
on Android. We should probably refrain from using data except on
D3D-only code, which we know will be Visual Studio.

BUG=angle:767

Change-Id: Ibc10577368435a13f62d74d77c95076482cd8f82
Reviewed-on: https://chromium-review.googlesource.com/220920Tested-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>