DevTools: Scale allocation tracking overview by currently used sizes.
DevTools: Scale allocation tracking overview by currently used sizes.

There are two types of bar on the overview. Grey are for allocated
but now freed objects. Blue for allocated and still in use. The
latter are more important. If the overview chart scale is based on
former the blue bars might happen to be just too small.
The patch makes the scale to be based on the allocated and still in
use objects (blue bars).

R=loislo@chromium.org

Review URL: https://codereview.chromium.org/15979021

git-svn-id: bf5cd6ccde378db821296732a091cfbcf5285fbd@151758 bbb929c8-8fbe-4397-9dbb-9b2b20218538

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