Move AlterEnvironment to base/environment.h, implement on Windows.

chrome/browser/importer/external_process_importer_client.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.
 
 #include "chrome/browser/importer/external_process_importer_client.h"
 
 #include "base/bind.h"
 #include "base/strings/string_number_conversions.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/importer/external_process_importer_host.h"
@@ skipping 267 matching lines @@
 }
 
 void ExternalProcessImporterClient::StartProcessOnIOThread(
     BrowserThread::ID thread_id) {
   utility_process_host_ = UtilityProcessHost::Create(
       this, BrowserThread::GetMessageLoopProxyForThread(thread_id).get())
       ->AsWeakPtr();
   utility_process_host_->DisableSandbox();
 
 #if defined(OS_MACOSX)
-  base::EnvironmentVector env;
+  base::EnvironmentMap env;
   std::string dylib_path = GetFirefoxDylibPath().value();
   if (!dylib_path.empty())
-    env.push_back(std::make_pair("DYLD_FALLBACK_LIBRARY_PATH", dylib_path));
+    env["DYLD_FALLBACK_LIBRARY_PATH"] = dylib_path;
   utility_process_host_->SetEnv(env);
 #endif
 
   // Dictionary of all localized strings that could be needed by the importer
   // in the external process.
   DictionaryValue localized_strings;
   localized_strings.SetString(
       base::IntToString(IDS_BOOKMARK_GROUP),
       l10n_util::GetStringUTF8(IDS_BOOKMARK_GROUP));
   localized_strings.SetString(
@@ skipping 11 matching lines @@
   localized_strings.SetString(
       base::IntToString(IDS_IMPORT_FROM_SAFARI),
       l10n_util::GetStringUTF8(IDS_IMPORT_FROM_SAFARI));
   localized_strings.SetString(
       base::IntToString(IDS_BOOKMARK_BAR_FOLDER_NAME),
       l10n_util::GetStringUTF8(IDS_BOOKMARK_BAR_FOLDER_NAME));
 
   utility_process_host_->Send(new ProfileImportProcessMsg_StartImport(
       source_profile_, items_, localized_strings));
 }