[Android] Redirect std{in,out,err} to sockets for layout tests.

content/shell/browser/layout_test/scoped_android_configuration.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_SHELL_BROWSER_LAYOUT_TEST_SCOPED_ANDROID_CONFIGURATION_H_
+#define CONTENT_SHELL_BROWSER_LAYOUT_TEST_SCOPED_ANDROID_CONFIGURATION_H_
+
+#include <memory>
+#include <string>
+#include <vector>
+
+#include "base/macros.h"
+
+namespace net {
+class SocketPosix;
+}
+
+namespace content {
+
+class ScopedAndroidConfiguration {
+ public:
+  ScopedAndroidConfiguration();
+  ~ScopedAndroidConfiguration();
+
+  // Redirects stdin, stdout, and stderr to the ports specified on the command
+  // line.
+  void RedirectStreams();
+
+ private:
+  // Adds |socket| to |sockets_|.
+  void AddSocket(std::unique_ptr<net::SocketPosix> socket);
+
+  // The sockets to which the IO streams are being redirected.
+  std::vector<std::unique_ptr<net::SocketPosix>> sockets_;
+
+  DISALLOW_COPY_AND_ASSIGN(ScopedAndroidConfiguration);
+};
+
+}  // namespace content
+
+#endif  // CONTENT_SHELL_BROWSER_LAYOUT_TEST_SCOPED_ANDROID_CONFIGURATION_H_