Fix stats table on linux.  There were two problems:   a) We were using the wrong pid for the browser pid   b) We weren't initializing the StatsTable after running the zygote.
Fix stats table on linux.  There were two problems:
  a) We were using the wrong pid for the browser pid
  b) We weren't initializing the StatsTable after running the zygote.

BUG=none
TEST=none

Review URL: http://codereview.chromium.org/3051003

git-svn-id: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@52962 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