Re-add setting of wrap and filtering mode parameters of backing texture of command buffer offscreen contexts, and properly track these states in the TextureManager. Using code does not have the opportunity to set these parameters before it is determined that the backing framebuffer is incomplete.
Re-add setting of wrap and filtering mode parameters of backing
texture of command buffer offscreen contexts, and properly track these
states in the TextureManager. Using code does not have the opportunity
to set these parameters before it is determined that the backing
framebuffer is incomplete.

Ran WebGL content on Linux to verify fix.

BUG=62432
TEST=none

Review URL: http://codereview.chromium.org/4670002

git-svn-id: http://src.chromium.org/svn/trunk/src@65487 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: 8011534e323e1040e7b15b0dac5a2429011fd5c5
meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser