Remove the NO_TCMALLOC_SAMPLES option from allocator.gyp
Remove the NO_TCMALLOC_SAMPLES option from allocator.gyp

This brings the heap leak checker back again.

The patch was originally prepared by Alexander Potapenko (cc'ed)
and reviewed as http://codereview.chromium.org/464034

TBR=willchan,antonm
Review URL: http://codereview.chromium.org/478002

git-svn-id: http://src.chromium.org/svn/trunk/src@34170 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: f51b5c982b8e625513368a7af660fb58594a36f8
meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser