Change Mojo URLs to structured names

mojo/shell/background/background_shell.h

Index: mojo/shell/background/background_shell.h
diff --git a/mojo/shell/background/background_shell.h b/mojo/shell/background/background_shell.h
index 6226f8940875a8fd5c3f1e16aeaa88402507a733..95248b1fcd18d3aec0355454a5c42dfcac31fc3c 100644
--- a/mojo/shell/background/background_shell.h
+++ b/mojo/shell/background/background_shell.h
@@ -13,8 +13,6 @@
 #include "mojo/services/package_manager/package_manager.h"
 #include "mojo/shell/public/interfaces/shell_client.mojom.h"
 
-class GURL;
-
 namespace package_manager {
 class ApplicationCatalogStore;
 }
@@ -45,9 +43,9 @@ class BackgroundShell {
   // switches applied to any processes spawned by this call.
   void Init(scoped_ptr<InitParams> init_params);
 
-  // Obtains an InterfaceRequest for the specified url.
-  InterfaceRequest<mojom::ShellClient> CreateShellClientRequest(
-      const GURL& url);
+  // Obtains an InterfaceRequest for the specified name.
+  mojom::ShellClientRequest CreateShellClientRequest(
+      const std::string& name);
 
  private:
   class MojoThread;