Allow the product directory name to vary based on a setting in the outer browser .app's Info.plist.
Allow the product directory name to vary based on a setting in the outer
browser .app's Info.plist.

This supports the Mac canary.

BUG=79814
TEST=Set CrProductDirName in Info.plist to a new value (like
     Google/Chrome79814) and launch the browser. You should be working with
     a new profile. The profile should be found at
     ~/Library/Application Support/Google/Chrome79814. It should work out of
     a cache directory at ~/Library/Caches/Google/Chrome79814.
Review URL: http://codereview.chromium.org/6879021

git-svn-id: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@82057 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