ppapi: PPB_VpnProvider: Implement permission check

content/public/browser/content_browser_client.cc

Index: content/public/browser/content_browser_client.cc
diff --git a/content/public/browser/content_browser_client.cc b/content/public/browser/content_browser_client.cc
index 6a7bca7c1912a41464336cac03089369079a1ae3..d8c321bcf31482d20ff7485f224182db684515ca 100644
--- a/content/public/browser/content_browser_client.cc
+++ b/content/public/browser/content_browser_client.cc
@@ -338,6 +338,12 @@ bool ContentBrowserClient::AllowPepperSocketAPI(
   return false;
 }
 
+bool ContentBrowserClient::IsPepperVpnProviderAPIAllowed(
+    BrowserContext* browser_context,
+    const GURL& url) {
+  return false;
+}
+
 ui::SelectFilePolicy* ContentBrowserClient::CreateSelectFilePolicy(
     WebContents* web_contents) {
   return nullptr;