Converts usage of SetProp/GetProp to a map. Even after making sure we

Attempt 2 at:
Converts usage of SetProp/GetProp to a map. Even after making sure we
clean up props we still leak in a handful of cases that are causing
test grief. By and large our usage of properties is for inside the
application, so that a map works fine.

BUG=61528
44991
TEST=none
TBR=cpu@chromium.org

Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=66920

[sky, 2010-11-19 23:26:21]

My first landing of this failed because of a couple of stupid typing mistakes.
The first patch here is the last patch you reviewed, the second is the fixed on.
Diff between the two to see what's changed.

I'm TBRing as the changes are trivial from what you reviewed.

  -Scott