Don't DCHECK NPP_HandleEvent's return for NPERR_NO_ERROR
Don't DCHECK NPP_HandleEvent's return for NPERR_NO_ERROR

It actually returns true or false depending on whether or not the plugin
handled the event. Treating as an NPError is just asserting that the
plugin claimed not to handle the event. Ignore the return value instead.

BUG=none
TEST=Flash still works, plugins which do return true (npapi-sdk sample plugin) don't trigger a DCHECK


Review URL: http://codereview.chromium.org/8216033

git-svn-id: de016e52bd170d2d4f2344f9bf92d50478b649e0@106126 0039d316-1c4b-4281-b951-d872f2087c98

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