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
void simulateDoubleTap(WebViewImpl* webViewImpl, WebPoint& point, float& scale)
{
    webViewImpl->animateDoubleTapZoom(point);
    EXPECT_TRUE(webViewImpl->fakeDoubleTapAnimationPendingForTesting());
    simulatePageScale(webViewImpl, scale);
}

void simulateDoubleTap(WebViewImpl* webViewImpl, WebPoint& point, float& scale)
{
    webViewImpl->animateDoubleTapZoom(point);
    EXPECT_TRUE(webViewImpl->fakeDoubleTapAnimationPendingForTesting());
    simulatePageScale(webViewImpl, scale);
}
