Automatic Win8 default browser registration for the ash unittests.

win8/test/metro_registration_helper.cc

+// 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.
+
+#include "win8/test/metro_registration_helper.h"
+
+#include "base/command_line.h"
+#include "base/file_path.h"
+#include "base/file_util.h"
+#include "base/logging.h"
+#include "base/path_service.h"
+#include "base/process.h"
+#include "base/process_util.h"
+#include "base/win/scoped_handle.h"
+#include "win8/test/test_registrar_constants.h"
+
+namespace {
+
+const int kRegistrationTimeoutSeconds = 30;
+
+// Copied from util_constants.cc to avoid taking a dependency on installer_util.
+const wchar_t kChromeExe[] = L"chrome.exe";
+const wchar_t kRegistrar[] = L"test_registrar.exe";
+
+}
+
+namespace win8 {
+
+bool RegisterTestDefaultBrowser(const string16& app_user_model_id,
+                                const string16& viewer_process_name) {
+  FilePath dir;
+  if (!PathService::Get(base::DIR_EXE, &dir))
+    return false;
+
+  FilePath chrome_exe(dir.Append(kChromeExe));
+  FilePath registrar(dir.Append(kRegistrar));
+
+  if (!file_util::PathExists(chrome_exe) || !file_util::PathExists(registrar)) {
+    LOG(ERROR) << "Could not locate " << kChromeExe << " or " << kRegistrar;
+    return false;
+  }
+
+  // Perform the registration by invoking test_registrar.exe with the
+  // necessary flags:
+  //     test_registrar.exe /RegServer --appid=<appid> --exe-name=<name>
+  CommandLine register_command(registrar);
+  register_command.AppendArg("/RegServer");
+  register_command.AppendSwitchNative(win8::test::kTestAppUserModelId,
+                                      app_user_model_id);
+  register_command.AppendSwitchNative(win8::test::kTestExeName,
+                                      viewer_process_name);
+
+  base::win::ScopedHandle register_handle;
+  if (base::LaunchProcess(register_command, base::LaunchOptions(),
+                          register_handle.Receive())) {
+    int ret = 0;
+    if (base::WaitForExitCodeWithTimeout(
+            register_handle, &ret,
+            base::TimeDelta::FromSeconds(kRegistrationTimeoutSeconds))) {
+      if (ret == 0) {
+        return true;
+      } else {
+        LOG(ERROR) << "Win8 registration using "
+                   << register_command.GetCommandLineString()
+                   << " failed with error code " << ret;
+      }
+    } else {
+      LOG(ERROR) << "Win8 registration using "
+                 << register_command.GetCommandLineString() << " timed out.";
+    }
+  }
+
+  PLOG(ERROR) << "Failed to launch Win8 registration utility using "
+              << register_command.GetCommandLineString();
+  return false;
+}
+
+}  // namespace win8