Move InterfaceProvider into the shell::mojom namespace like the rest of the shell interfaces.

content/browser/mojo/mojo_application_host.cc

Index: content/browser/mojo/mojo_application_host.cc
diff --git a/content/browser/mojo/mojo_application_host.cc b/content/browser/mojo/mojo_application_host.cc
index 1c3ed3732ab9aaf20db5822e6afeec08dab074ee..5aa48f54dcf904a3d9ecdbc321fa4503962827d8 100644
--- a/content/browser/mojo/mojo_application_host.cc
+++ b/content/browser/mojo/mojo_application_host.cc
@@ -28,8 +28,8 @@ class ApplicationSetupImpl : public ApplicationSetup {
  private:
   // ApplicationSetup implementation.
   void ExchangeInterfaceProviders(
-      mojo::InterfaceRequest<mojo::InterfaceProvider> services,
-      mojo::InterfaceProviderPtr exposed_services) override {
+      mojo::shell::mojom::InterfaceProviderRequest services,
+      mojo::shell::mojom::InterfaceProviderPtr exposed_services) override {
     service_registry_->Bind(std::move(services));
     service_registry_->BindRemoteServiceProvider(std::move(exposed_services));
   }