First attempt at fixing a crash that occurs when we get into WebFrameLoaderClient::dispatchDidChangeLocationWithinPage() with an empty redirect chain.
First attempt at fixing a crash that occurs when we get into WebFrameLoaderClient::dispatchDidChangeLocationWithinPage()
with an empty redirect chain.

BUG=22205
TEST=none


Review URL: http://codereview.chromium.org/326015

git-svn-id: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@30496 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser