headless: Initial headless embedder API implementation

headless/lib/headless_content_main_delegate.h

Index: headless/lib/headless_content_main_delegate.h
diff --git a/headless/lib/headless_content_main_delegate.h b/headless/lib/headless_content_main_delegate.h
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+// 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.
+
+#ifndef HEADLESS_LIB_HEADLESS_CONTENT_MAIN_DELEGATE_H_
+#define HEADLESS_LIB_HEADLESS_CONTENT_MAIN_DELEGATE_H_
+
+#include "base/compiler_specific.h"
+#include "base/macros.h"
+#include "base/memory/scoped_ptr.h"
+#include "content/public/app/content_main_delegate.h"
+#include "headless/lib/headless_content_client.h"
+
+namespace content {
+class BrowserContext;
+}
+
+namespace headless {
+
+class HeadlessBrowserImpl;
+class HeadlessContentBrowserClient;
+class HeadlessContentUtilityClient;
+class HeadlessContentRendererClient;
+
+class HeadlessContentMainDelegate : public content::ContentMainDelegate {
+ public:
+  HeadlessContentMainDelegate(scoped_ptr<HeadlessBrowserImpl> browser);
+  ~HeadlessContentMainDelegate() override;
+
+  // content::ContentMainDelegate implementation:
+  bool BasicStartupComplete(int* exit_code) override;
+  void PreSandboxStartup() override;
+  int RunProcess(
+      const std::string& process_type,
+      const content::MainFunctionParams& main_function_params) override;
+  void ZygoteForked() override;
+  content::ContentBrowserClient* CreateContentBrowserClient() override;
+  content::ContentRendererClient* CreateContentRendererClient() override;
+  content::ContentUtilityClient* CreateContentUtilityClient() override;
+
+  HeadlessBrowserImpl* browser() const { return browser_.get(); }
+
+ private:
+  friend class HeadlessBrowserTest;
+
+  static void InitializeResourceBundle();
+
+  static HeadlessContentMainDelegate* GetInstance();
+
+  content::BrowserContext* browser_context();
+
+  scoped_ptr<HeadlessContentBrowserClient> browser_client_;
+  scoped_ptr<HeadlessContentRendererClient> renderer_client_;
+  scoped_ptr<HeadlessContentUtilityClient> utility_client_;
+  HeadlessContentClient content_client_;
+
+  scoped_ptr<HeadlessBrowserImpl> browser_;
+
+  DISALLOW_COPY_AND_ASSIGN(HeadlessContentMainDelegate);
+};
+
+}  // namespace headless
+
+#endif  // HEADLESS_LIB_HEADLESS_CONTENT_MAIN_DELEGATE_H_