Add netlog parse/plot script.
Add netlog parse/plot script.

BUG=NONE
TEST=NONE

Review URL: http://codereview.chromium.org/3674007

git-svn-id: http://src.chromium.org/svn/trunk/src@62563 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: 13d4ad05c6734783f09cef7b9fa932412134f64a
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