Add experimental.alarms API to allow lazy background pages to

chrome/renderer/extensions/schema_generated_bindings.cc

Index: chrome/renderer/extensions/schema_generated_bindings.cc
diff --git a/chrome/renderer/extensions/schema_generated_bindings.cc b/chrome/renderer/extensions/schema_generated_bindings.cc
index c9fad71b9ed87af2541428bfc98b5f0e6a090ce1..c3229a589c2a95c00ca5bb24e9ae671e62734dff 100644
--- a/chrome/renderer/extensions/schema_generated_bindings.cc
+++ b/chrome/renderer/extensions/schema_generated_bindings.cc
@@ -143,7 +143,8 @@ class ExtensionImpl : public ChromeV8Extension {
     const std::set<std::string>& function_names =
         v8_extension->extension_dispatcher_->function_names();
     if (function_names.find(name) == function_names.end()) {
-      NOTREACHED() << "Unexpected function " << name;
+      NOTREACHED() << "Unexpected function " << name <<
+          ". Did you remember to register it with ExtensionFunctionRegistry?";
       return v8::Undefined();
     }