Revert 77066 - Test impact of using default windows allocator
Revert 77066 - Test impact of using default windows allocator

I'll revert this as soon as the builds kick off.
I just want to look at perf impact.

I'll ceate a fancier CL that uses different allocators
for render vs browser, but I wanted an overall baseline
for transitioning completely from TCMalloc to 
the default allocator on Windows.

TBR=cpu

Review URL: http://codereview.chromium.org/6635004

TBR=jar@chromium.org
Review URL: http://codereview.chromium.org/6623041

git-svn-id: http://src.chromium.org/svn/trunk/src@77067 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: 85bcff75db293eaf5513f2c2222cd13b43357b76
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