Added missing Set method for Vector
Added missing Set method for Vector

BUG=1474670
TBR=r
DELTA=6  (6 added, 0 deleted, 0 changed)
OCL=18839
CL=18843

nightlyone/golang,wesolows/golang-old,wesolows/golang,pombredanne/go-deleteme,apparentlymart/golang,bdwalton/debian-golang,dsriram/golang,tianon/debian-golang,ssrl/go,wesolows/golang-old,apparentlymart/golang,wesolows/golang,h8liu/golang,tianon/debian-golang,ssrl/go,nightlyone/golang,gnanderson/go,pombredanne/go-deleteme,h8liu/golang,h8liu/golang,tv42/old-go,h8liu/golang,tianon/debian-golang,firebitsbr/golang-old,apparentlymart/golang,firebitsbr/golang-old,wesolows/golang-old,firebitsbr/golang-old,wesolows/golang,wesolows/golang-old,tianon/debian-golang,h8liu/golang,ssrl/go,wesolows/golang,firebitsbr/golang-old,apparentlymart/golang,bdwalton/debian-golang,nightlyone/golang,ssrl/go,tv42/old-go,nightlyone/golang,ssrl/go,tianon/debian-golang,tv42/old-go,firebitsbr/golang-old,tianon/debian-golang,dsriram/golang,gnanderson/go,wesolows/golang,dsriram/golang,bdwalton/debian-golang,wesolows/golang-old,firebitsbr/golang-old,ssrl/go,wesolows/golang,dsriram/golang,bdwalton/debian-golang,ssrl/go,gnanderson/go,dsriram/golang,gnanderson/go,pombredanne/go-deleteme,pombredanne/go-deleteme,dsriram/golang,gnanderson/go,gnanderson/go,dsriram/golang,h8liu/golang,bdwalton/debian-golang,nightlyone/golang,tv42/old-go,bdwalton/debian-golang,wesolows/golang,wesolows/golang-old,bdwalton/debian-golang,tv42/old-go,nightlyone/golang,tianon/debian-golang,wesolows/golang-old,apparentlymart/golang,h8liu/golang,firebitsbr/golang-old,gnanderson/go,pombredanne/go-deleteme,firebitsbr/golang-old,nightlyone/golang,apparentlymart/golang,pombredanne/go-deleteme,bdwalton/debian-golang,tv42/old-go,tv42/old-go,pombredanne/go-deleteme,tianon/debian-golang,apparentlymart/golang