ui: Explicitly prevent GL_TEXTURE_RECTANGLE_ARB from being used GLImageEGL.

This target is not supported according to OES_EGL_image spec.

BUG=

Review URL: https://codereview.chromium.org/83783006

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@236980 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 236980