updater_state_unittests: don't lookup a nil map on non-Windows platforms.

components/update_client/updater_state_unittest.cc

 // Copyright 2016 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/macros.h"
 #include "base/time/time.h"
 #include "base/version.h"
 #include "components/update_client/updater_state.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
@@ skipping 23 matching lines @@
 
   // Sanity check all members.
   EXPECT_STREQ("the updater", attributes.at("name").c_str());
   EXPECT_STREQ("1.0", attributes.at("version").c_str());
   EXPECT_STREQ("0", attributes.at("laststarted").c_str());
   EXPECT_STREQ("0", attributes.at("lastchecked").c_str());
   EXPECT_STREQ("0", attributes.at("domainjoined").c_str());
   EXPECT_STREQ("1", attributes.at("autoupdatecheckenabled").c_str());
   EXPECT_STREQ("1", attributes.at("updatepolicy").c_str());
 
-#if defined(GOOGLE_CHROME_BUILD)
+#if defined(GOOGLE_CHROME_BUILD) && defined(OS_WIN)
   // The name of the Windows updater for Chrome.
   EXPECT_STREQ("Omaha", UpdaterState::GetState(false)->at("name").c_str());
 #endif  // GOOGLE_CHROME_BUILD
 
   // Tests some of the remaining values.
   updater_state = UpdaterState(false);
 
   // Don't serialize an invalid version if it could not be read.
   updater_state.updater_version_ = base::Version();
   attributes = updater_state.BuildAttributes();
@@ skipping 44 matching lines @@
   updater_state.update_policy_ = 0;
   attributes = updater_state.BuildAttributes();
   EXPECT_STREQ("0", attributes.at("updatepolicy").c_str());
 
   updater_state.update_policy_ = -1;
   attributes = updater_state.BuildAttributes();
   EXPECT_STREQ("-1", attributes.at("updatepolicy").c_str());
 }
 
 }  // namespace update_client