Update merge info now that we use Chromium 9.0.597.0

The V8 revision remains r5901

Note that this is a backwards merge from Chromium release 9.0.600.0
to 9.0.597.0, to align with the Chromium 9 stable release branch.

Change-Id: Ia5ca877bfa2cf2e01b46555e2fcca4f46c45e142
1 file changed