DevTools: add backend for discovering connected ADB devices.

chrome/browser/devtools/protocol_http_request.h

+// Copyright (c) 2013 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 CHROME_BROWSER_DEVTOOLS_PROTOCOL_HTTP_REQUEST_H_
+#define CHROME_BROWSER_DEVTOOLS_PROTOCOL_HTTP_REQUEST_H_
+
+#include "base/callback.h"
+#include "base/memory/ref_counted.h"
+#include "net/base/io_buffer.h"
+#include "net/url_request/url_request.h"
+
+namespace net {
+class URLRequestContextGetter;
+}
+
+class Profile;
+
+class ProtocolHttpRequest : public net::URLRequest::Delegate {
+ public:
+  typedef base::Callback<void(const std::string& error,
+                              const std::string& data)> Callback;
+
+  ProtocolHttpRequest(Profile* profile,
+                      const std::string& url,
+                      const Callback& callback);
+
+ private:
+  void Start();
+
+  // net::URLRequest::Delegate implementation.
+  virtual void OnResponseStarted(net::URLRequest* request) OVERRIDE;
+  virtual void OnReadCompleted(net::URLRequest* request,
+                               int bytes_read) OVERRIDE;
+
+  void RespondOnUIThread();
+
+  net::URLRequestContextGetter* request_context_;
+  GURL url_;
+  Callback callback_;
+
+  std::string error_;
+  std::string data_;
+  scoped_refptr<net::IOBuffer> io_buffer_;
+  net::URLRequest* request_;
+
+  DISALLOW_COPY_AND_ASSIGN(ProtocolHttpRequest);
+};
+
+#endif  // CHROME_BROWSER_DEVTOOLS_PROTOCOL_HTTP_REQUEST_H_