Move simple methods [A-E] from WebGraphicsContext3D to GLES2Interface.
This removes methods from WebGraphicsContext3D that were simple macro-
based pass-throughs to the underlying GLES2Interface, and changes
callers in blink to use the GLES2Interface for them instead.
R=junov@chromium.org,
kbr@chromium.org, piman, chrishtr
TBR=pfeldman, kbr
BUG=
584497
CQ_INCLUDE_TRYBOTS=tryserver.chromium.win:win_optional_gpu_tests_rel;tryserver.chromium.mac:mac_optional_gpu_tests_rel
Committed:
https://crrev.com/611de09a17728eb0c1713b30ab3c2178a106d146
Cr-Commit-Position: refs/heads/master@{#382081}