Add a length DCHECK() on GURL size to IPC param traits.
Add a length DCHECK() on GURL size to IPC param traits.

If there is a case of a too long GURL being pickled,
this will catch it at its source rather than a harder
to debug failure on the other end of the pipe.

(This doesn't yet fix the bug.)

BUG=102287
TEST=Mouse-overing the link in the bug's test.html should trigger the DCHECK().

Review URL: http://codereview.chromium.org/8417053

git-svn-id: de016e52bd170d2d4f2344f9bf92d50478b649e0@108562 0039d316-1c4b-4281-b951-d872f2087c98

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