Remove Chrome OS-only sources only if the OS is Chrome OS.

chrome/test/BUILD.gn

 # Copyright 2014 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.
 
 import("//build/config/crypto.gni")
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
 import("//build/module_args/v8.gni")
 import("//testing/test.gni")
 
@@ skipping 768 matching lines @@
 
         # chromeos does not use the desktop user manager
         "../browser/ui/webui/signin/user_manager_ui_browsertest.cc",
       ]
       deps += [
         "//dbus",
         "//dbus:test_support",
 
         #"//ui/login:resources",  TODO(GYP)
       ]
+      if (use_ozone) {
+        sources -= [
+          # crbug.com/362698
+          "../browser/chromeos/input_method/input_method_engine_browsertests.cc",
+          "../browser/extensions/api/input_ime/input_ime_apitest_chromeos.cc",
+        ]
+      }
     } else {
       sources -= [
         "../browser/extensions/api/enterprise_platform_keys/enterprise_platform_keys_apitest_nss.cc",
         "../browser/extensions/api/platform_keys/platform_keys_apitest_nss.cc",
         "../browser/extensions/api/terminal/terminal_private_apitest.cc",
         "../browser/invalidation/profile_invalidation_provider_factory_browsertest.cc",
         "../browser/net/nss_context_chromeos_browsertest.cc",
         "../browser/ui/ash/keyboard_controller_browsertest.cc",
         "data/webui/certificate_viewer_ui_test-inl.h",
       ]
@@ skipping 191 matching lines @@
         # These tests depend on single process mode, which is disabled in
         # official builds.
         "../renderer/safe_browsing/phishing_classifier_browsertest.cc",
         "../renderer/safe_browsing/phishing_classifier_delegate_browsertest.cc",
         "../renderer/safe_browsing/phishing_dom_feature_extractor_browsertest.cc",
       ]
     }
     if (!enable_autofill_dialog || is_android || is_ios) {
       deps -= [ "//third_party/libaddressinput" ]
     }
-    if (use_ozone) {
-      sources -= [
-        # crbug.com/362698
-        "../browser/chromeos/input_method/input_method_engine_browsertests.cc",
-        "../browser/extensions/api/input_ime/input_ime_apitest_chromeos.cc",
-      ]
-    }
     if (enable_remoting) {
       sources += rebase_path(
               chrome_tests_gypi_values.chrome_browser_tests_remoting_sources,
               ".",
               "//chrome")
       #deps += [ "//remoting:remoting_webapp" ]  TODO(GYP)
     }
     if (use_x11) {
       deps += [ "//tools/xdisplaycheck" ]
     }
@@ skipping 479 matching lines @@
         "//ash/resources",
         "//ui/chromeos/resources",
       ]
       sources -= [
         "../browser/signin/signin_global_error_unittest.cc",
         "../browser/signin/signin_manager_unittest.cc",
         "../browser/signin/signin_names_io_thread_unittest.cc",
         "../browser/ui/views/app_list/linux/app_list_linux_unittest.cc",
         "../browser/ui/views/frame/opaque_browser_frame_view_layout_unittest.cc",
       ]
+      if (use_ozone) {
+        # crbug.com/354036
+        sources -= [ "../browser/chromeos/events/event_rewriter_unittest.cc" ]
+      }
     }
     if (use_x11) {
       deps += [ "//ui/events/devices" ]
       data_deps += [ "//tools/xdisplaycheck" ]
     } else {
       sources -= [ "../browser/password_manager/password_store_x_unittest.cc" ]
     }
     if (cld_version == 0 || cld_version == 2) {
       # Unit tests should be independent of the CLD2 access mechanism, just use
       # static for simplicity.
@@ skipping 145 matching lines @@
       defines += [ "CLD_WINDOWS" ]
       deps += [ "//third_party/cld" ]
     }
     if (enable_app_list) {
       sources +=
           rebase_path(unit_gypi_values.chrome_unit_tests_app_list_sources,
                       ".",
                       "//chrome")
       deps += [ "//ui/app_list:test_support" ]
     }
-    if (use_ozone) {
-      # crbug.com/354036
-      sources -= [ "../browser/chromeos/events/event_rewriter_unittest.cc" ]
-    }
     if (!enable_plugin_installation) {
       sources -= [ "../browser/plugins/plugin_installer_unittest.cc" ]
     }
   }
 
   if (is_linux && !is_chromeos) {
     # TODO(GYP): Figure out which of these work and are needed on other
     # platforms.
     test("chrome_app_unittests") {
       sources = [
@@ skipping 52 matching lines @@
     #     ]
     #   }
     #   if (!is_mac) {
     #     sources -= [
     #       "perf/mach_ports_performancetest.cc",
     #     ]
     #   }
     # }
   }
 }