Call didAccessInitialDocument when javascript: URLs are used.

BUG=265221
TEST=See bug for repro.

Review URL: https://chromiumcodereview.appspot.com/22572004

git-svn-id: svn://svn.chromium.org/blink/trunk@155790 bbb929c8-8fbe-4397-9dbb-9b2b20218538
ScriptValue ScriptController::executeScript(const String& script, bool forceUserGesture)
{
    UserGestureIndicator gestureIndicator(forceUserGesture ? DefinitelyProcessingNewUserGesture : PossiblyProcessingUserGesture);
    return executeScript(ScriptSourceCode(script, m_frame->document()->url()));
}

ScriptValue ScriptController::executeScript(const String& script, bool forceUserGesture)
{
    UserGestureIndicator gestureIndicator(forceUserGesture ? DefinitelyProcessingNewUserGesture : PossiblyProcessingUserGesture);
    return executeScript(ScriptSourceCode(script, m_frame->document()->url()));
}
