headless: Initial headless embedder API implementation

headless/lib/browser/headless_content_browser_client.cc

+// 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.
+
+#include "headless/lib/browser/headless_content_browser_client.h"
+
+#include "headless/lib/browser/headless_browser_context.h"
+#include "headless/lib/browser/headless_browser_main_parts.h"
+#include "headless/lib/headless_browser_impl.h"
+
+namespace headless {
+
+HeadlessContentBrowserClient::HeadlessContentBrowserClient(
+    HeadlessBrowserImpl* browser)
+    : browser_(browser), browser_main_parts_(nullptr) {}
+
+HeadlessContentBrowserClient::~HeadlessContentBrowserClient() {}
+
+content::BrowserMainParts* HeadlessContentBrowserClient::CreateBrowserMainParts(
+    const content::MainFunctionParams&) {
+  browser_main_parts_ = new HeadlessBrowserMainParts(browser_);
+  browser_->set_browser_main_parts(browser_main_parts_);
+  return browser_main_parts_;
+}
+
+net::URLRequestContextGetter*
+HeadlessContentBrowserClient::CreateRequestContext(
+    content::BrowserContext* content_browser_context,
+    content::ProtocolHandlerMap* protocol_handlers,
+    content::URLRequestInterceptorScopedVector request_interceptors) {
+  CHECK(content_browser_context == browser_context());
+  return browser_context()->CreateRequestContext(
+      protocol_handlers, std::move(request_interceptors));
+}
+
+HeadlessBrowserContext* HeadlessContentBrowserClient::browser_context() {
+  return browser_main_parts_->browser_context();
+}
+
+}  // namespace headless