Simplify resolve.

mojo/shell/public/interfaces/shell_resolver.mojom

 // Copyright 2016 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.
 
 module mojo.shell.mojom;
 
 import "mojo/shell/public/interfaces/capabilities.mojom";
 
+// The result of a Resolve operation via ShellResolver.
+struct ResolveResult {
+  // The mojo: name that was requested to be resolved.
+  string name;
+
+  // The mojo: name of the physical package supplying the requested name. This
+  // could be the same name that was passed, or the name of a package that
+  // contains it.
+  string resolved_name;
+
+  // An additional piece of metadata that identifies what instance |name| should
+  // be run in. It's possible that |name| may provide several services that
+  // should be run as different instances.
+  string qualifier;
+
+  // The set of capabilities provided and required by |name|.
+  CapabilitySpec capabilities;
+
+  // A file URL to the package specified by |name|.
+  // TODO(beng): What if resolved_mojo_name needs to be re-resolved?
+  string package_url;
+};
+
 // Implemented exclusively for the Mojo Shell's use in resolving mojo: names
 // and reading static manifest information.
 interface ShellResolver {
-  // Resolves |mojo_name| to the following metadata:
-  //
-  // resolved_mojo_name
-  //  another mojo: name of an application implementing mojo::ShellClientFactory
-  //  that can handle connections to |mojo_name|.
-  //
-  // qualifier
-  //  an additional piece of metadata that identifies what instance
-  //  |resolved_mojo_name| should be run in. It's possible that
-  //  |resolved_mojo_name| may provide several services that should be run as
-  //  different instances.
-  //
-  // mojo_file_url
-  //  a file URL to the application specified in |resolved_mojo_name|
-  //  TODO(beng): what if |resolved_mojo_name| needs to be re-resolved??
-  // 
-  // filter
-  //  the base CapabilityFilter within which an instance of |resolved_mojo_name|
-  //  must be run for |mojo_name|.
-  //
-  // If |mojo_name| can't be resolved (i.e. not a mojo: or exe: scheme), then
-  // the callback will be run with null |mojo_file_url|, and |filter|.
-  ResolveMojoName(string mojo_name) =>
-      (string resolved_mojo_name,
-       string qualifier,
-       CapabilitySpec? capability_spec,
-       string? mojo_file_url);
+  // Resolves |mojo_name| and returns a ResolveResult containing metadata from
+  // the catalog that the Shell uses to run an instance of it.
+  ResolveMojoName(string mojo_name) => (ResolveResult result);
 };