Patch 3.1: Refactored spellcheck_message_filter to be generic

chrome/test/BUILD.gn

Index: chrome/test/BUILD.gn
diff --git a/chrome/test/BUILD.gn b/chrome/test/BUILD.gn
index a2d2e0ee4c54d15dbfbae7f5f0c6a1947021a592..279c392b62cad2fb1265217c1ce2bd4ab6426e94 100644
--- a/chrome/test/BUILD.gn
+++ b/chrome/test/BUILD.gn
@@ -905,13 +905,14 @@ if (!is_android) {
       deps += [
         #'app_mode_app_support',  TODO(GYP)
         "//chrome",
+
         #'../components/components.gyp:breakpad_stubs',  TODO(GYP)
         "//third_party/ocmock",
       ]
       sources += [
         "../browser/media_galleries/fileapi/iphoto_data_provider_browsertest.cc",
         "../browser/renderer_host/chrome_render_widget_host_view_mac_history_swiper_browsertest.mm",
-        "../browser/spellchecker/spellcheck_message_filter_mac_browsertest.cc",
+        "../browser/spellchecker/spellcheck_message_filter_platform_mac_browsertest.cc",
       ]
       sources -= [
         # TODO(groby): This test depends on hunspell and we cannot run it on