Exceptions for Web Notifications and the Push API by default.

content/public/common/content_switches.cc

Index: content/public/common/content_switches.cc
diff --git a/content/public/common/content_switches.cc b/content/public/common/content_switches.cc
index 60d342313c934a311b180a8acb092c118156bdd7..c11062ceb34702f92dc7aaeacf8889e5064f2eb5 100644
--- a/content/public/common/content_switches.cc
+++ b/content/public/common/content_switches.cc
@@ -194,6 +194,9 @@ const char kDisableMediaSource[]            = "disable-media-source";
 // Disables usage of the namespace sandbox.
 const char kDisableNamespaceSandbox[]       = "disable-namespace-sandbox";
 
+// Disables the Web Notification and the Push APIs.
+const char kDisableNotifications[]          = "disable-notifications";
+
 // Disable rasterizer that writes directly to GPU memory.
 // Overrides the kEnableOneCopy flag.
 const char kDisableOneCopy[]                = "disable-one-copy";