Add vpd 2.0 log file in chrome://system
VPD (Vital Product Data) are written into BIOS flash during factory.
It contains machine-specific information, e.g., mother board serial number,
MAC address, 3G module serial number...
Those information are important when user sends machine back to service cent
The log file is generated in session_manager.sh (see http://codereview.chromium.org/6543005
). Will commit this CL after that CL.
TEST=Tested on Mario. VPD info show in chrome://system.