Update the PushEvent to have a nullable PushMessageData

content/browser/browser_context.cc

Index: content/browser/browser_context.cc
diff --git a/content/browser/browser_context.cc b/content/browser/browser_context.cc
index fc3f644fba214656908804ba9084f8770210ac99..041e84c516951ca16c7b8810cffa3bea5929eaa4 100644
--- a/content/browser/browser_context.cc
+++ b/content/browser/browser_context.cc
@@ -255,11 +255,12 @@ void BrowserContext::DeliverPushMessage(
     BrowserContext* browser_context,
     const GURL& origin,
     int64_t service_worker_registration_id,
-    const std::string& data,
+    const content::PushEventPayload& payload,

[Peter Beverloo, 2016/01/25 17:39:06]

nit: no need for content:: (we are in the content namespace)

Applies to all other uses of content:: in files in this directory as well.

[harkness, 2016/01/26 12:07:19]

Done.

     const base::Callback<void(PushDeliveryStatus)>& callback) {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
-  PushMessagingRouter::DeliverMessage(
-      browser_context, origin, service_worker_registration_id, data, callback);
+  PushMessagingRouter::DeliverMessage(browser_context, origin,
+                                      service_worker_registration_id, payload,
+                                      callback);
 }
 
 // static