Guard against NULL webview in dispatchDidFinishDocumentLoad. The webview can be NULL if dispatchDidFinishDocumentLoad is called via a frame destructor.
Guard against NULL webview in dispatchDidFinishDocumentLoad. The
webview can be NULL if dispatchDidFinishDocumentLoad is called via a
frame destructor.

BUG=20324
TEST=LayoutTests/http/tests/security/javascriptURL/javascriptURL-in-new-iframe.html
Review URL: http://codereview.chromium.org/194022

git-svn-id: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@25596 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