Add hooks to content to request permission to connect to the PPAPI broker.

content/public/browser/web_contents_delegate.cc

Index: content/public/browser/web_contents_delegate.cc
diff --git a/content/public/browser/web_contents_delegate.cc b/content/public/browser/web_contents_delegate.cc
index 34732db1e640d6ff5f4a7776fa564bb5807b58e5..b4be03a631c26aa75dbba7fdf31cee02da1e349f 100644
--- a/content/public/browser/web_contents_delegate.cc
+++ b/content/public/browser/web_contents_delegate.cc
@@ -159,6 +159,14 @@ void WebContentsDelegate::WebIntentDispatch(
   delete intents_dispatcher;
 }
 
+void WebContentsDelegate::RequestPpapiBrokerPermission(
+    WebContents* web_contents,
+    const GURL& url,
+    const FilePath& plugin_path,
+    const base::Callback<void(bool)>& callback) {
+  callback.Run(false);
+}
+
 WebContentsDelegate::~WebContentsDelegate() {
   while (!attached_contents_.empty()) {
     WebContents* web_contents = *attached_contents_.begin();