Chromium build fails due to `out of memory` allocation

Question

I am trying to build chromium content_shell. But it fails at the last linking stage because of out of memory.

Error Log:

[1/1] LINK content_shell     

...

/usr/bin/ld: out of memory allocating 1000 bytes after a total of 2115682304 bytes                                          
collect2: ld returned 1 exit status                           
ninja: build stopped: subcommand failed.

Solution I found was to add more swap:

It takes about 8GB of swap file to link chromium and its tests. If you get an out-of-memory error during the final link, you will need to add swap space with swapon. It's recommended to have at least 4GB of memory available for building a statically linked debug build. Dynamic linking and/or building a release build lowers memory requirements. People with less than 8GB of memory may want to not build tests since they are quite large. (https://code.google.com/p/chromium/wiki/LinuxBuildInstructionsPrerequisites)

Before adding swap:

rna@rna-P580:~/workspace/blink_ref/src$ free -m
             total       used       free     shared    buffers     cached
Mem:          3899        684       3215          0          2        105
-/+ buffers/cache:        576       3323
Swap:         3954        534       3420

After swap increased:

rna@rna-P580:/dev$ free -m
             total       used       free     shared    buffers     cached
Mem:          3899        567       3331          0          1         70
-/+ buffers/cache:        495       3403
Swap:        12050        577      11473

Problem :

I still have the same out of memory failure even after I increased swap by 8GB. How should I fix this problem?