Get mojo_shell building inside chromium checkout.

This brings in mojo_shell and the necessary services to make html_viewer work.

This is copied from the Mojo repo at 272fbba5887d66fc0111e2ab44c1edf67b7f23e0.

R=scottmg@chromium.org

Review URL: https://codereview.chromium.org/1049993002

Cr-Commit-Position: refs/heads/master@{#323528}

1 files changed, 64 insertions, 0 deletions

diff --git a/mojo/shell/android/background_application_loader.h b/mojo/shell/android/background_application_loader.h
new file mode 100644
index 0000000..7c549f7
--- /dev/null
+++ b/mojo/shell/android/background_application_loader.h
@@ -0,0 +1,64 @@
+// Copyright 2014 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.
+
+#ifndef SHELL_ANDROID_BACKGROUND_APPLICATION_LOADER_H_
+#define SHELL_ANDROID_BACKGROUND_APPLICATION_LOADER_H_
+
+#include "base/macros.h"
+#include "base/memory/scoped_ptr.h"
+#include "base/message_loop/message_loop.h"
+#include "base/synchronization/waitable_event.h"
+#include "base/threading/simple_thread.h"
+#include "mojo/shell/application_manager/application_loader.h"
+
+namespace mojo {
+namespace shell {
+
+class BackgroundApplicationLoader
+    : public ApplicationLoader,
+      public base::DelegateSimpleThread::Delegate {
+ public:
+  BackgroundApplicationLoader(scoped_ptr<ApplicationLoader> real_loader,
+                              const std::string& thread_name,
+                              base::MessageLoop::Type message_loop_type);
+  ~BackgroundApplicationLoader() override;
+
+  // ApplicationLoader overrides:
+  void Load(const GURL& url,
+            InterfaceRequest<Application> application_request) override;
+
+ private:
+  // |base::DelegateSimpleThread::Delegate| method:
+  void Run() override;
+
+  // These functions are exected on the background thread. They call through
+  // to |background_loader_| to do the actual loading.
+  void LoadOnBackgroundThread(
+      const GURL& url,
+      InterfaceRequest<Application> application_request);
+  bool quit_on_shutdown_;
+  scoped_ptr<ApplicationLoader> loader_;
+
+  const base::MessageLoop::Type message_loop_type_;
+  const std::string thread_name_;
+
+  // Created on |thread_| during construction of |this|. Protected against
+  // uninitialized use by |message_loop_created_|, and protected against
+  // use-after-free by holding a reference to the thread-safe object. Note
+  // that holding a reference won't hold |thread_| from exiting.
+  scoped_refptr<base::TaskRunner> task_runner_;
+  base::WaitableEvent message_loop_created_;
+
+  // Lives on |thread_|.
+  base::Closure quit_closure_;
+
+  scoped_ptr<base::DelegateSimpleThread> thread_;
+
+  DISALLOW_COPY_AND_ASSIGN(BackgroundApplicationLoader);
+};
+
+}  // namespace shell
+}  // namespace mojo
+
+#endif  // SHELL_ANDROID_BACKGROUND_APPLICATION_LOADER_H_