Let's try this again. The regressions were caused by an incorrect use...

Let's try this again.  The regressions were caused by an incorrect use
of the current context instead of last entered context.

Create node wrappers in the context to which the nodes belong instead
of the context of the code accessing them.  This fixes the issue where
the prototype library does not work if the JavaScript console is open.

Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=2826