Support sharing of ContentMain and BrowserMain code with embedded use cases (try #3).

content/public/app/content_main_runner.h

+// Copyright (c) 2012 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 CONTENT_PUBLIC_APP_CONTENT_MAIN_RUNNER_H_
+#define CONTENT_PUBLIC_APP_CONTENT_MAIN_RUNNER_H_
+#pragma once
+
+#include <string>
+
+#include "build/build_config.h"
+
+#if defined(OS_WIN)
+#include <windows.h>
+#endif
+
+namespace sandbox {
+struct SandboxInterfaceInfo;
+}
+
+namespace content {
+
+class ContentMainDelegate;
+
+// This class is responsible for content initialization, running and shutdown.
+class ContentMainRunner {
+ public:
+  virtual ~ContentMainRunner() {}
+
+  // Create a new ContentMainRunner object.
+  static ContentMainRunner* Create();
+
+  // Initialize all necessary content state.
+#if defined(OS_WIN)
+  // The |sandbox_info| and |delegate| objects must outlive this class.
+  // |sandbox_info| should be initialized using InitializeSandboxInfo from
+  // content_main_win.h.
+  virtual int Initialize(HINSTANCE instance,
+                         sandbox::SandboxInterfaceInfo* sandbox_info,
+                         ContentMainDelegate* delegate) = 0;
+#else
+  // The |delegate| object must outlive this class.
+  virtual int Initialize(int argc,
+                         const char** argv,
+                         ContentMainDelegate* delegate) = 0;
+#endif
+
+  // Perform the default run logic.
+  virtual int Run() = 0;
+
+  // Shut down the content state.
+  virtual void Shutdown() = 0;
+};
+
+}  // namespace content
+
+#endif  // CONTENT_PUBLIC_APP_CONTENT_MAIN_RUNNER_H_