Add remoting::UrlRequest interface with 2 implementations

remoting/client/plugin/pepper_url_request.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 REMOTING_CLIENT_PLUGIN_PEPPER_URL_LOADER_H_
+#define REMOTING_CLIENT_PLUGIN_PEPPER_URL_LOADER_H_
+
+#include "base/callback.h"
+#include "ppapi/cpp/instance_handle.h"
+#include "ppapi/cpp/url_loader.h"
+#include "ppapi/cpp/url_request_info.h"
+#include "ppapi/utility/completion_callback_factory.h"
+#include "remoting/base/url_request.h"
+
+namespace remoting {
+
+// UrlRequest implementation that uses URLLoader provided by Pepper.
+class PepperUrlRequest : public UrlRequest {
+ public:
+  PepperUrlRequest(pp::InstanceHandle pp_instance, const std::string& url);
+  ~PepperUrlRequest() override;
+
+  // UrlRequest interface.
+  void AddHeader(const std::string& value) override;
+  void Start(const OnResultCallback& on_result_callback) override;
+
+ private:
+  void OnUrlOpened(int32_t result);
+  void ReadResponseBody();
+  void OnResponseBodyRead(int32_t result);
+
+  pp::URLRequestInfo request_info_;
+  pp::URLLoader url_loader_;
+  std::string url_;
+
+  std::string headers_;
+
+  OnResultCallback on_result_callback_;
+
+  std::string response_;
+
+  pp::CompletionCallbackFactory<PepperUrlRequest> callback_factory_;
+
+  DISALLOW_COPY_AND_ASSIGN(PepperUrlRequest);
+};
+
+class PepperUrlRequestFactory : public UrlRequestFactory {
+ public:
+  PepperUrlRequestFactory(pp::InstanceHandle pp_instance);
+  ~PepperUrlRequestFactory() override;
+
+   // UrlRequestFactory interface.
+  scoped_ptr<UrlRequest> CreateUrlRequest(const std::string& url) override;
+
+ private:
+  pp::InstanceHandle pp_instance_;
+
+  DISALLOW_COPY_AND_ASSIGN(PepperUrlRequestFactory);
+};
+
+}  // namespace remoting
+
+#endif  // REMOTING_CLIENT_PLUGIN_PEPPER_URL_LOADER_H_