headless: Initial headless embedder API implementation

headless/lib/headless_content_client.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_HEADLESS_CONTENT_CLIENT_H_
+#define HEADLESS_LIB_HEADLESS_CONTENT_CLIENT_H_
+
+#include "content/public/common/content_client.h"
+#include "headless/public/headless_browser.h"
+
+namespace headless {
+
+class HeadlessContentClient : public content::ContentClient {
+ public:
+  explicit HeadlessContentClient(const HeadlessBrowser::Options& options);
+  ~HeadlessContentClient() override;
+
+  // content::ContentClient implementation:
+  std::string GetUserAgent() const override;
+  base::string16 GetLocalizedString(int message_id) const override;
+  base::StringPiece GetDataResource(
+      int resource_id,
+      ui::ScaleFactor scale_factor) const override;
+  base::RefCountedStaticMemory* GetDataResourceBytes(
+      int resource_id) const override;
+  gfx::Image& GetNativeImageNamed(int resource_id) const override;
+
+ private:
+  HeadlessBrowser::Options options_;
+
+  DISALLOW_COPY_AND_ASSIGN(HeadlessContentClient);
+};
+
+}  // namespace headless
+
+#endif  // HEADLESS_LIB_HEADLESS_CONTENT_CLIENT_H_