Use mojo for Chrome Loading, Part 1

content/browser/loader/url_loader_factory_impl.h

+// Copyright 2016 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_BROWSER_LOADER_URL_LOADER_FACTORY_IMPL_H_
+#define CONTENT_BROWSER_LOADER_URL_LOADER_FACTORY_IMPL_H_
+
+#include "base/macros.h"
+#include "base/memory/ref_counted.h"
+#include "content/common/content_export.h"
+#include "content/common/url_loader_factory.mojom.h"
+#include "mojo/public/cpp/bindings/interface_request.h"
+#include "mojo/public/cpp/bindings/strong_binding.h"
+
+namespace content {
+
+class ResourceMessageFilter;
+
+// This class is an implementation of mojom::URLLoaderFactory that creates
+// a mojom::URLLoader.
+class URLLoaderFactoryImpl final : public mojom::URLLoaderFactory {
+ public:
+  ~URLLoaderFactoryImpl() override;
+
+  void CreateLoaderAndStart(mojom::URLLoaderRequest request,
+                            int32_t request_id,
+                            const ResourceRequest& url_request,
+                            mojom::URLLoaderClientPtr client) override;
+
+  // Creates a URLLoaderFactoryImpl instance. The instance is held by the
+  // StrongBinding in it, so this function doesn't return the instance.
+  CONTENT_EXPORT static void Create(
+      scoped_refptr<ResourceMessageFilter> resource_message_filter,
+      mojo::InterfaceRequest<mojom::URLLoaderFactory> request);
+
+ private:
+  URLLoaderFactoryImpl(
+      scoped_refptr<ResourceMessageFilter> resource_message_filter,
+      mojo::InterfaceRequest<mojom::URLLoaderFactory> request);
+
+  scoped_refptr<ResourceMessageFilter> resource_message_filter_;
+  mojo::StrongBinding<mojom::URLLoaderFactory> binding_;
+
+  DISALLOW_COPY_AND_ASSIGN(URLLoaderFactoryImpl);
+};
+
+}  // namespace content
+
+#endif  // CONTENT_BROWSER_LOADER_URL_LOADER_FACTORY_IMPL_H_