Uses mojom module names as Dart's package: import URI

mojo/public/interfaces/bindings/interface_control_messages.mojom

Index: mojo/public/interfaces/bindings/interface_control_messages.mojom
diff --git a/mojo/public/interfaces/bindings/interface_control_messages.mojom b/mojo/public/interfaces/bindings/interface_control_messages.mojom
index 1ddccfc0612b898964f69d893fad4bbc21a3fc09..2e772cdd41b31c0155ede4b7648c2c27dc34895b 100644
--- a/mojo/public/interfaces/bindings/interface_control_messages.mojom
+++ b/mojo/public/interfaces/bindings/interface_control_messages.mojom
@@ -2,9 +2,10 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+[DartUriBase="mojo/public/interfaces/bindings"]
 module mojo.internal;
 
-// For each message pipe representing a user-defined interface, some control 
+// For each message pipe representing a user-defined interface, some control
 // functions are provided at the same end of the message pipe as the
 // user-defined interface, providing information about the user-defined
 // interface and controlling behavior of the message pipe.