components: add wifi_sync component

chrome/test/BUILD.gn

Index: chrome/test/BUILD.gn
diff --git a/chrome/test/BUILD.gn b/chrome/test/BUILD.gn
index d56b1a7b33b104093ed5779dbc4a95a700b071b9..7aa757d9be010d9435fc42ddae966256cbf2f0b9 100644
--- a/chrome/test/BUILD.gn
+++ b/chrome/test/BUILD.gn
@@ -254,6 +254,12 @@ if (!is_android) {
         "../browser/sync/test/integration/sync_app_list_helper.h",
       ]
     }
+    if (!is_chromeos) {
+      sources -= [
+        "../browser/sync/test/integration/wifi_credentials_helper.cc",
+        "../browser/sync/test/integration/wifi_credentials_helper.h",
+      ]
+    }
   }
 
   test("sync_integration_tests") {
@@ -313,6 +319,12 @@ if (!is_android) {
     } else {
       sources -= [ "../app/chrome_version.rc.version" ]
     }
+    if (!is_chromeos) {
+      sources -= [
+        "../browser/sync/test/integration/single_client_wifi_credentials_sync_test.cc",
+        "../browser/sync/test/integration/two_client_wifi_credentials_sync_test.cc",
+      ]
+    }
 
     if (toolkit_views) {
       deps += [ "//ui/views" ]