### Issue Details

* **Electron Version:**
  * All up to and including `9-x-y`
* **Operating System:**
  * Linux
* **Last Known Working Electron version:**
  * Never 😢 

### Expected Behavior

When a crash occurs the `crashReporter` module should send the crash dump to your reporting URL along with some extra metadata including a `guid` attribute that is a UUID for the user sending the crash to you.

### Actual Behavior
No `guid` 😢 


shell/browser/electron_browser_client.cc
content::RenderFrameHost* rfh) const {
  auto* web_contents = content::WebContents::FromRenderFrameHost(rfh);
  auto* web_preferences = WebContentsPreferences::From(web_contents);
  std::string affinity;
  if (web_preferences &&
      web_preferences->GetPreference("affinity", &affinity) &&
      !affinity.empty()) {
    affinity = base::ToLowerASCII(affinity);
  }
  return affinity;
}
content::SiteInstance* ElectronBrowserClient::GetSiteInstanceFromAffinity(
    content::BrowserContext* browser_context,
    const GURL& url,
    content::RenderFrameHost* rfh) const {
  std::string affinity = GetAffinityPreference(rfh);
  if (!affinity.empty()) {
    auto iter = site_per_affinities_.find(affinity);
    GURL dest_site = content::SiteInstance::GetSiteForURL(browser_context, url);
    if (iter != site_per_affinities_.end() &&
        IsSameWebSite(browser_context, iter->second, dest_site)) {
      return iter->second;
    }
  }
  return nullptr;
}
void ElectronBrowserClient::ConsiderSiteInstanceForAffinity(