All platforms don't support same locales at the same time. Make locale check ...

chrome/common/extensions/extension_unpacker_unittest.cc

 // Copyright (c) 2009 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 "base/file_util.h"
 #include "base/path_service.h"
 #include "base/string_util.h"
 #include "base/values.h"
 #include "chrome/common/chrome_paths.h"
 #include "chrome/common/extensions/extension_constants.h"
@@ skipping 82 matching lines @@
   SetupUnpacker("missing_messages_file.crx");
   EXPECT_FALSE(unpacker_->Run());
   EXPECT_TRUE(MatchPatternASCII(unpacker_->error_message(),
     errors::kLocalesMessagesFileMissing +
     std::string("*_locales?en_US?messages.json")));
 }
 
 TEST_F(ExtensionUnpackerTest, NoLocaleData) {
   SetupUnpacker("no_locale_data.crx");
   EXPECT_FALSE(unpacker_->Run());
-  EXPECT_EQ(errors::kLocalesTreeMissing, unpacker_->error_message());
+  EXPECT_EQ(errors::kLocalesNoDefaultMessages, unpacker_->error_message());
 }
 
 TEST_F(ExtensionUnpackerTest, GoodL10n) {
   SetupUnpacker("good_l10n.crx");
   EXPECT_TRUE(unpacker_->Run());
   EXPECT_TRUE(unpacker_->error_message().empty());
   ASSERT_EQ(2U, unpacker_->parsed_catalogs()->size());
 }
 
 TEST_F(ExtensionUnpackerTest, NoL10n) {
   SetupUnpacker("no_l10n.crx");
   EXPECT_TRUE(unpacker_->Run());
   EXPECT_TRUE(unpacker_->error_message().empty());
   EXPECT_EQ(0U, unpacker_->parsed_catalogs()->size());
 }