Hook up the Push API with GCM's new ability to own encryption keys.

chrome/test/data/push_messaging/push_test.js

Index: chrome/test/data/push_messaging/push_test.js
diff --git a/chrome/test/data/push_messaging/push_test.js b/chrome/test/data/push_messaging/push_test.js
index 607126f3c39f90a4e52a893ca43074459b353c94..5060c3226910784f22398a510e4fe0cbbbe16b83 100644
--- a/chrome/test/data/push_messaging/push_test.js
+++ b/chrome/test/data/push_messaging/push_test.js
@@ -106,6 +106,16 @@ function subscribePush() {
   }).catch(sendErrorToTest);
 }
 
+function getCurve25519dh() {
+  navigator.serviceWorker.ready.then(function(swRegistration) {
+    return swRegistration.pushManager.subscribe(pushSubscriptionOptions)

[johnme, 2015/07/21 15:37:26]

Nit: the intent would probably be clearer if you s/subscribe/getSubscription/

[Peter Beverloo, 2015/07/21 15:51:08]

Done.

+        .then(function(subscription) {
+          sendResultToTest(btoa(String.fromCharCode.apply(null,
+              new Uint8Array(subscription.curve25519dh))));
+        });
+  }).catch(sendErrorToTest);
+}
+
 function permissionState() {
   navigator.serviceWorker.ready.then(function(swRegistration) {
     return swRegistration.pushManager.permissionState(pushSubscriptionOptions)