Updating XTBs based on .GRDs from branch 1700

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@234583 0039d316-1c4b-4281-b951-d872f2087c98
Revert "Add url field in the detail of chrome.wallpaper.setWallpaper"

This reverts https://codereview.chromium.org/26522002.
Instead of using XMLHttprequest to download wallpaper.
We want to download it directly throug URLFetcher in chrome.

R=kalman@chromium.org, miket@chromium.org
TBR=jhawkins
BUG=311607

Review URL: https://codereview.chromium.org/44183003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@234584 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 234584