Update link for Plugin VM HC article

Bug: b:163432680
Change-Id: Ief9324452d082dfe4f94e8e9bc7d2bbb998b07ac
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2584630Reviewed-by: Jason Lin <lxj@google.com>
Commit-Queue: Timothy Loh <timloh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#836865}

chrome/browser/ui/views/plugin_vm/plugin_vm_installer_view.cc

@@ -228,9 +228,9 @@ void PluginVmInstallerView::OnStateUpdated(InstallingState new_state) {
 }
 
 void PluginVmInstallerView::OnLinkClicked() {
-  NavigateParams params(
-      profile_, GURL("https://support.google.com/chromebook/?p=pluginvm"),
-      ui::PAGE_TRANSITION_LINK);
+  NavigateParams params(profile_,
+                        GURL("https://support.google.com/chrome/a/?p=pluginvm"),
+                        ui::PAGE_TRANSITION_LINK);
   params.disposition = WindowOpenDisposition::NEW_FOREGROUND_TAB;
   Navigate(&params);
 }