[devtools] Handle reload for a crashed tab on browser instead of renderer.

BUG=chromedriver:520

Review URL: https://chromiumcodereview.appspot.com/23856015

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@224524 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 224524