Create msvs_large_pdb workaround.

This creates a workaround for targets whose PDB sizes exceeds 1GB, using the same trick originally implemented here:

https://codereview.chromium.org/11968015/

There are currently 4 targets using this, and another 4 targets that need to use it hence the desire to centralize this functionality.

BUG=174136

Review URL: https://codereview.chromium.org/12476002

git-svn-id: http://gyp.googlecode.com/svn/trunk@1600 78cadc50-ecff-11dd-a971-7dbc132099af