Revert 47396 - Revert 47363  Fix build on ChromeOS by adding required return value checks.
Revert 47396 - Revert 47363  Fix build on ChromeOS by adding required return value checks.

Relands. It's irrelative.

http://buildbot.jail.google.com/buildbot/waterfall/builders/Mac10.5%20Tests%20(dbg)(2)/builds/16790

TBR=sky

TEST=none
BUG=none

Review URL: http://codereview.chromium.org/2098007

TBR=phajdan.jr@chromium.org
Review URL: http://codereview.chromium.org/2076004

TBR=tyoshino@chromium.org
Review URL: http://codereview.chromium.org/2073009

git-svn-id: http://src.chromium.org/svn/trunk/src@47397 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: dbdda6b958b8c8449ef7e159ca842a55834f6fd6
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