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

content/shell/browser/layout_test/layout_test_android.cc

-// Copyright 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.
-
-#include "content/shell/browser/layout_test/layout_test_android.h"
-
-#include <memory>
-
-#include "base/android/context_utils.h"
-#include "base/android/fifo_utils.h"
-#include "base/android/jni_android.h"
-#include "base/android/jni_string.h"
-#include "base/command_line.h"
-#include "base/files/file_path.h"
-#include "base/message_loop/message_loop.h"
-#include "content/public/test/nested_message_pump_android.h"
-#include "content/shell/common/shell_switches.h"
-#include "jni/ShellLayoutTestUtils_jni.h"
-#include "url/gurl.h"
-
-using base::android::ScopedJavaLocalRef;
-
-namespace {
-
-base::FilePath GetTestFilesDirectory(JNIEnv* env) {
-  ScopedJavaLocalRef<jstring> directory =
-      content::Java_ShellLayoutTestUtils_getApplicationFilesDirectory(
-          env, base::android::GetApplicationContext());
-  return base::FilePath(ConvertJavaStringToUTF8(directory));
-}
-
-void EnsureCreateFIFO(const base::FilePath& path) {
-  unlink(path.value().c_str());
-  CHECK(base::android::CreateFIFO(path, 0666))
-    << "Unable to create the Android's FIFO: " << path.value().c_str();
-}
-
-std::unique_ptr<base::MessagePump> CreateMessagePumpForUI() {
-  return std::unique_ptr<base::MessagePump>(
-      new content::NestedMessagePumpAndroid());
-}
-
-}  // namespace
-
-namespace content {
-
-void EnsureInitializeForAndroidLayoutTests() {
-  JNIEnv* env = base::android::AttachCurrentThread();
-
-  bool success = base::MessageLoop::InitMessagePumpForUIFactory(
-      &CreateMessagePumpForUI);
-  CHECK(success) << "Unable to initialize the message pump for Android.";
-
-  // Android will need three FIFOs to communicate with the Blink test runner,
-  // one for each of [stdout, stderr, stdin].
-  base::FilePath files_dir(GetTestFilesDirectory(env));
-
-  base::FilePath stdout_fifo(files_dir.Append(FILE_PATH_LITERAL("test.fifo")));
-  EnsureCreateFIFO(stdout_fifo);
-
-  base::FilePath stderr_fifo(
-      files_dir.Append(FILE_PATH_LITERAL("stderr.fifo")));
-  EnsureCreateFIFO(stderr_fifo);
-
-  base::FilePath stdin_fifo(files_dir.Append(FILE_PATH_LITERAL("stdin.fifo")));
-  EnsureCreateFIFO(stdin_fifo);
-
-  // Redirecting stdout needs to happen before redirecting stdin, which needs
-  // to happen before redirecting stderr.
-  success = base::android::RedirectStream(stdout, stdout_fifo, "w") &&
-            base::android::RedirectStream(stdin, stdin_fifo, "r") &&
-            base::android::RedirectStream(stderr, stderr_fifo, "w");
-
-  CHECK(success) << "Unable to initialize the Android FIFOs.";
-}
-
-}  // namespace content