- Electron version: 0.36.12, 0.37.6
- Operating system: Kubuntu 15.10

Try Ctrl+Shift+F, find progress freeze always.

atom/browser/common_web_contents_delegate.cc
content::WebContents* source) {
  if (!owner_window_)
    return;
  SetHtmlApiFullscreen(false);
  owner_window_->NotifyWindowLeaveHtmlFullScreen();
  source->GetRenderViewHost()->GetWidget()->WasResized();
}
bool CommonWebContentsDelegate::IsFullscreenForTabOrPending(
    const content::WebContents* source) const {
  return html_fullscreen_;
}
content::SecurityStyle CommonWebContentsDelegate::GetSecurityStyle(
    content::WebContents* web_contents,
    content::SecurityStyleExplanations* explanations) {
  auto model_client =
      AtomSecurityStateModelClient::FromWebContents(web_contents);
  const SecurityStateModel::SecurityInfo& security_info =
      model_client->GetSecurityInfo();
  const content::SecurityStyle security_style =
      SecurityLevelToSecurityStyle(security_info.security_level);
  explanations->ran_insecure_content_style =
      SecurityLevelToSecurityStyle(
          SecurityStateModel::kRanInsecureContentLevel);
  explanations->displayed_insecure_content_style =