Bug 922756 - Build config for Chromium sandbox. r=bsmedberg

--HG--
rename : security/sandbox/LICENSE => security/sandbox/linux/LICENSE
rename : security/sandbox/Makefile.in => security/sandbox/linux/Makefile.in
rename : security/sandbox/Sandbox.cpp => security/sandbox/linux/Sandbox.cpp
rename : security/sandbox/Sandbox.h => security/sandbox/linux/Sandbox.h
rename : security/sandbox/android_arm_ucontext.h => security/sandbox/linux/android_arm_ucontext.h
rename : security/sandbox/android_i386_ucontext.h => security/sandbox/linux/android_i386_ucontext.h
rename : security/sandbox/android_ucontext.h => security/sandbox/linux/android_ucontext.h
rename : security/sandbox/arm_linux_syscalls.h => security/sandbox/linux/arm_linux_syscalls.h
rename : security/sandbox/linux_seccomp.h => security/sandbox/linux/linux_seccomp.h
rename : security/sandbox/linux_syscalls.h => security/sandbox/linux/linux_syscalls.h
rename : security/sandbox/moz.build => security/sandbox/linux/moz.build
rename : security/sandbox/seccomp_filter.h => security/sandbox/linux/seccomp_filter.h
rename : security/sandbox/x86_32_linux_syscalls.h => security/sandbox/linux/x86_32_linux_syscalls.h
rename : security/sandbox/x86_64_linux_syscalls.h => security/sandbox/linux/x86_64_linux_syscalls.h
Bug 922756 - Initial import of subset of Chromium sandbox. r=aklotz
Bug 922756 - Changes to import of Chromium sandbox so that it's buildable. r=aklotz