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

mojo/shell/fetcher/about_fetcher_unittest.cc

 // 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.
 
 #include "mojo/shell/fetcher/about_fetcher.h"
 
 #include <stddef.h>
 
 #include <utility>
 
@@ skipping 89 matching lines @@
   ~AboutFetcherTest() override {}
 
  protected:
   const TestContentHandler* html_content_handler() const {
     return &html_content_handler_;
   }
 
   void ConnectAndWait(const std::string& url) {
     base::RunLoop run_loop;
 
-    InterfaceProviderPtr remote_interfaces;
-    InterfaceRequest<InterfaceProvider> remote_request =
+    shell::mojom::InterfaceProviderPtr remote_interfaces;
+    shell::mojom::InterfaceProviderRequest remote_request =
         GetProxy(&remote_interfaces);
     // This connection error handler will be called when:
     // - TestContentHandler::StartApplication() has been called (please see
     //   comments in that method); or
     // - the application manager fails to fetch the requested URL.
     remote_interfaces.set_connection_error_handler(
         [&run_loop]() { run_loop.Quit(); });
 
     scoped_ptr<ConnectToApplicationParams> params(
         new ConnectToApplicationParams);
@@ skipping 50 matching lines @@
   const URLResponse* response = html_content_handler()->latest_response();
   EXPECT_EQ("about:some_unrecognized_url", response->url);
   EXPECT_EQ(404u, response->status_code);
   EXPECT_EQ("text/html", response->mime_type);
   EXPECT_FALSE(response->body.is_valid());
 }
 
 }  // namespace
 }  // namespace shell
 }  // namespace mojo