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

It looks that this change caused lots of test failures. Reverts for now and wait and see.

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

git-svn-id: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@47396 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser