Fix mac build by adding extra dependency on app from the string tool.
Fix mac build by adding extra dependency on app from the string tool.

TEST=mac compiles
BUG=none

git-svn-id: http://src.chromium.org/svn/trunk/src@70039 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: 35323d04055bc095cfffe72b46dfd466db9a5ce6
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