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

mojo/public/interfaces/bindings/interface_control_messages.mojom

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // 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.
 
 ////////////////////////////////////////////////////////////////////////////////
 // Run@0xFFFFFFFF(RunInput input) => (RunOutput? output);
 //
 // This control function runs the input command. If the command is not
 // supported, |output| is set to null; otherwise |output| stores the result,
 // whose type depends on the input.
@@ skipping 62 matching lines @@
   uint32 reserved0;  // Must be set to 16.
   uint32 reserved1;  // Must be set to 0.
   RequireVersion require_version;
 };
 
 // If the specified version of the user-defined interface is not supported, the
 // function fails and the pipe is closed.
 struct RequireVersion {
   uint32 version;
 };