This guarantees that the underlying PP_Var is all initialized.  There was a red test bot in NaCl (lucid-newlib-64-dbg); the problem was caused by garbage values (non-0) in pp:Var being usedto index into the proxy var cache.
This guarantees that the underlying PP_Var is all initialized.  There was a red test bot in NaCl (lucid-newlib-64-dbg); the problem was caused by garbage values (non-0) in pp:Var being usedto index into the proxy var cache.

BUG=none
TEST=ppapi tests

Review URL: http://codereview.chromium.org/6995138

git-svn-id: de016e52bd170d2d4f2344f9bf92d50478b649e0@88725 0039d316-1c4b-4281-b951-d872f2087c98

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