Update Chrome globals to version 40.

Change-Id: If7f30282e922f27703d7a7d4fbe0e545e9b4b08a
diff --git a/dev/core/src/com/google/gwt/dev/js/globals/chrome.txt b/dev/core/src/com/google/gwt/dev/js/globals/chrome.txt
index a84064d..d573e9e 100644
--- a/dev/core/src/com/google/gwt/dev/js/globals/chrome.txt
+++ b/dev/core/src/com/google/gwt/dev/js/globals/chrome.txt
@@ -402,6 +402,9 @@
 ScriptProcessorNode
 SecurityPolicy
 Selection
+ServiceWorker
+ServiceWorkerContainer
+ServiceWorkerRegistration
 ShadowRoot
 SharedWorker
 SpeechInputEvent