Cross Reference: /external/chromium_org/tools/gn/tutorial

`Name`	`Date`	`Size`
Up to higher level directory
`hello.cc`	23-Apr-2015	`411`
`hello.h`	23-Apr-2015	`383`
`hello_world.cc`	23-Apr-2015	`242`
`say_hello.cc`	23-Apr-2015	`313`