Enable EULA dialog to be shown from metro Chrome.

chrome/installer/util/install_util.cc

 // Copyright (c) 2012 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.
 //
 // See the corresponding header file for description of the functions in this
 // file.
 
 #include "chrome/installer/util/install_util.h"
 
 #include <shellapi.h>
 #include <shlobj.h>
 #include <shlwapi.h>
 
 #include <algorithm>
 
 #include "base/command_line.h"
 #include "base/file_util.h"
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/path_service.h"
 #include "base/string_util.h"
 #include "base/sys_info.h"
 #include "base/values.h"
 #include "base/version.h"
 #include "base/win/registry.h"
 #include "base/win/windows_version.h"
 #include "chrome/installer/util/browser_distribution.h"
 #include "chrome/installer/util/google_update_constants.h"
+#include "chrome/installer/util/helper.h"
 #include "chrome/installer/util/l10n_string_util.h"
 #include "chrome/installer/util/installation_state.h"
 #include "chrome/installer/util/util_constants.h"
 #include "chrome/installer/util/work_item_list.h"
 
 using base::win::RegKey;
 using installer::ProductState;
 
 namespace {
 
@@ skipping 312 matching lines @@
   } else {
     FilePath handler(
         FilePath(chrome_exe).DirName()
             .AppendASCII(version.GetString())
             .Append(installer::kDelegateExecuteExe));
     found = file_util::PathExists(handler);
   }
   return found;
 }
 
+bool InstallUtil::GetSentinelFilePath(const char* file,
+                                      BrowserDistribution* dist,
+                                      FilePath* path) {
+  FilePath exe_path;
+  if (!PathService::Get(base::DIR_EXE, &exe_path))
+    return false;
+
+  if (IsPerUserInstall(exe_path.value().c_str())) {
+    *path = exe_path;
+  } else {
+    std::vector<FilePath> user_data_dir_paths;
+    installer::GetChromeUserDataPaths(dist, &user_data_dir_paths);
+
+    if (!user_data_dir_paths.empty())
+      *path = user_data_dir_paths[0];
+    else
+      return false;
+  }
+
+  *path = path->AppendASCII(file);
+  return true;
+}
+
 // This method tries to delete a registry key and logs an error message
 // in case of failure. It returns true if deletion is successful (or the key did
 // not exist), otherwise false.
 bool InstallUtil::DeleteRegistryKey(HKEY root_key,
                                     const string16& key_path) {
   VLOG(1) << "Deleting registry key " << key_path;
   LONG result = ::SHDeleteKey(root_key, key_path.c_str());
   if (result != ERROR_SUCCESS && result != ERROR_FILE_NOT_FOUND) {
     LOG(ERROR) << "Failed to delete registry key: " << key_path
                << " error: " << result;
@@ skipping 170 matching lines @@
   // Open the program and see if it references the expected file.
   base::win::ScopedHandle handle;
   BY_HANDLE_FILE_INFORMATION info = {};
 
   return (OpenForInfo(program, &handle) &&
           GetInfo(handle, &info) &&
           info.dwVolumeSerialNumber == file_info_.dwVolumeSerialNumber &&
           info.nFileIndexHigh == file_info_.nFileIndexHigh &&
           info.nFileIndexLow == file_info_.nFileIndexLow);
 }