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
ScriptController::ScriptController(Frame* frame)
    : m_frame(frame)
    , m_sourceURL(0)
    , m_isolate(v8::Isolate::GetCurrent())
    , m_windowShell(V8WindowShell::create(frame, mainThreadNormalWorld(), m_isolate))
    , m_paused(false)
    , m_windowScriptNPObject(0)
{
}

ScriptController::ScriptController(Frame* frame)
    : m_frame(frame)
    , m_sourceURL(0)
    , m_isolate(v8::Isolate::GetCurrent())
    , m_windowShell(V8WindowShell::create(frame, mainThreadNormalWorld(), m_isolate))
    , m_paused(false)
    , m_windowScriptNPObject(0)
{
}
