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

content/public/browser/web_contents_observer.cc

Index: content/public/browser/web_contents_observer.cc
diff --git a/content/public/browser/web_contents_observer.cc b/content/public/browser/web_contents_observer.cc
index 14790293040c0f89c1893579653e5b9d1ca9ac39..f40db1d45666c687283ef420f37e7feecff8e909 100644
--- a/content/public/browser/web_contents_observer.cc
+++ b/content/public/browser/web_contents_observer.cc
@@ -37,6 +37,14 @@ void WebContentsObserver::Observe(WebContents* web_contents) {
   }
 }
 
+bool WebContentsObserver::RequestPpapiBrokerPermission(
+    WebContents* web_contents,
+    const GURL& url,
+    const FilePath& plugin_path,
+    const base::Callback<void(bool)>& callback) {
+  return false;
+}
+
 bool WebContentsObserver::OnMessageReceived(const IPC::Message& message) {
   return false;
 }