In some cases (related to window.open() with no contents, see bug for more details) we may get notified of SSL error or mixed-contents without a NavigationEntry. This CL ensures we don't crash in that case.
In some cases (related to window.open() with no contents, see bug for more details) we may get notified of SSL error or mixed-contents without a NavigationEntry.
This CL ensures we don't crash in that case.

BUG=3845
TEST=See bug.
Review URL: http://codereview.chromium.org/17218

git-svn-id: http://src.chromium.org/svn/trunk/src@7644 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: 598e7cbdc0acf13d726c06239f07e06956d31ba8
meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser