commit 55ddebb83836f9c4ef8b325050db65ead9807299
author christiank <christiank@opera.com> Mon May 18 08:56:32 2015
committer Commit bot <commit-bot@chromium.org> Mon May 18 08:56:43 2015
tree c626c651fd9d18c88186cc441e5b1f1fa5aef770
parent fe5270311b555b02e2779541a1577e2fa7ff66a5

glBindTexImage2DCHROMIUM should retain pixel format.

glBindTexImage2DCHROMIUM and glReleaseTexImage2DCHROMIUM will force the
texture format in the level info to GL_RGBA regardless of the internal
format used by the GLImage.

This CL address this by adding a GetFormat function to GLImage that
glBindTexImage2DCHROMIUM and glReleaseTexImage2DCHROMIUM will use when
updating the level info.

BUG=

Review URL: https://codereview.chromium.org/1140683002

Cr-Commit-Position: refs/heads/master@{#330336}