headless: Initial headless embedder API implementation

headless/lib/browser/headless_web_contents_impl.h

+// 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_BROWSER_HEADLESS_WEB_CONTENTS_IMPL_H_
+#define HEADLESS_LIB_BROWSER_HEADLESS_WEB_CONTENTS_IMPL_H_
+
+#include "headless/public/headless_web_contents.h"
+
+#include <unordered_map>
+
+namespace aura {
+class Window;
+}
+
+namespace content {
+class WebContents;
+class BrowserContext;
+}
+
+namespace gfx {
+class Size;
+}
+
+namespace headless {
+class WebContentsObserverAdapter;
+
+class HeadlessWebContentsImpl : public HeadlessWebContents {
+ public:
+  ~HeadlessWebContentsImpl() override;
+
+  // HeadlessWebContents implementation:
+  bool OpenURL(const GURL& url) override;
+  void AddObserver(Observer* observer) override;
+  void RemoveObserver(Observer* observer) override;
+
+  content::WebContents* web_contents() const;
+
+ private:
+  friend class HeadlessBrowserImpl;
+
+  HeadlessWebContentsImpl(content::BrowserContext* context,
+                          aura::Window* parent_window,
+                          const gfx::Size& initial_size);
+
+  class Delegate;
+  scoped_ptr<Delegate> web_contents_delegate_;
+  scoped_ptr<content::WebContents> web_contents_;
+
+  using ObserverMap =
+      std::unordered_map<HeadlessWebContents::Observer*,
+                         scoped_ptr<WebContentsObserverAdapter>>;
+  ObserverMap observer_map_;
+
+  DISALLOW_COPY_AND_ASSIGN(HeadlessWebContentsImpl);
+};
+
+}  // namespace headless
+
+#endif  // HEADLESS_LIB_BROWSER_HEADLESS_WEB_CONTENTS_IMPL_H_