Revert 65580 - Fix pkg-config-wrapper to work with chromiumos chroots
Revert 65580 - Fix pkg-config-wrapper to work with chromiumos chroots

Some pkg-config packages in chromium os (e.g. gtk) end up hard-coding libdir to be absolute (rather than relative to prefix), so it breaks builds from outside the chroot.
This works around it.

BUG=none
TEST=build with sysroot=/path/to/chromiumos/chroot/build/x86-generic

Review URL: http://codereview.chromium.org/4516002

TBR=piman@chromium.org
Review URL: http://codereview.chromium.org/4754002

git-svn-id: http://src.chromium.org/svn/trunk/src@65585 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: 43743b2cd8f8fc800ba57f450c9d81566e32763b
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