Mojo: more idiomatic C++ bindings

mojo/examples/launcher/launcher.cc

 // Copyright 2013 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 <stdio.h>
 #include <string>
 
 #include "base/at_exit.h"
 #include "base/command_line.h"
 #include "base/files/file_path.h"
 #include "base/i18n/icu_util.h"
 #include "base/macros.h"
 #include "base/message_loop/message_loop.h"
 #include "base/path_service.h"
 #include "mojo/aura/screen_mojo.h"
 #include "mojo/aura/window_tree_host_mojo.h"
 #include "mojo/examples/launcher/launcher.mojom.h"
-#include "mojo/public/cpp/bindings/allocation_scope.h"
 #include "mojo/public/cpp/gles2/gles2.h"
 #include "mojo/public/cpp/shell/application.h"
 #include "mojo/public/cpp/system/core.h"
 #include "mojo/public/interfaces/shell/shell.mojom.h"
 #include "mojo/services/native_viewport/native_viewport.mojom.h"
 #include "ui/aura/client/aura_constants.h"
 #include "ui/aura/client/default_capture_client.h"
 #include "ui/aura/client/window_tree_client.h"
 #include "ui/aura/env.h"
 #include "ui/aura/test/test_focus_client.h"
@@ skipping 188 matching lines @@
       return;
     }
     window_tree_host_->Show();
   }
   virtual void Hide() OVERRIDE {
     window_tree_host_->Hide();
   }
 
   // Overridden from URLReceiver:
   virtual void OnURLEntered(const std::string& url_text) OVERRIDE {
-    AllocationScope scope;
-    client()->OnURLEntered(url_text);
+    client()->OnURLEntered(String::From(url_text));
   }
 
   void HostContextCreated() {
     window_tree_host_->InitHost();
     window_tree_host_->window()->SetBounds(gfx::Rect(450, 60));
 
     focus_client_.reset(new aura::test::TestFocusClient());
     aura::client::SetFocusClient(window_tree_host_->window(),
                                  focus_client_.get());
     new wm::DefaultActivationClient(window_tree_host_->window());
@@ skipping 48 matching lines @@
   //             MessageLoop is not of TYPE_UI. I think we need a way to build
   //             Aura that doesn't define platform-specific stuff.
   aura::Env::CreateInstance(true);
 
   mojo::Application app(shell_handle);
   app.AddService<mojo::examples::LauncherImpl>(&app);
 
   loop.Run();
   return MOJO_RESULT_OK;
 }