Only load resources for renderer, extension, and zygote processes (and plugins processes on Windows).
Only load resources for renderer, extension, and zygote processes
(and plugins processes on Windows).

We used to always try to load them, even if we didn't use them.  It would
work fine if an update happened (because we didn't use them) and the files
were replaced.

Review URL: http://codereview.chromium.org/487001

git-svn-id: http://src.chromium.org/svn/trunk/src@34292 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: 4dbdb8769b13dfcebf618bc4e55c4fdabc54b4c4
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