[Sync] Convert sync to a static library.

components/sync/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/features.gni")
 import("//components/sync/protocol/protocol_sources.gni")
 import("//testing/test.gni")
 
-component("sync") {
-  public_deps = [
-    ":sync_core",
-    "//components/sync/protocol",
-  ]
-}
-
-# GYP version: components/sync.gyp:sync_core
-source_set("sync_core") {
+static_library("sync") {
   sources = [
     "api/attachments/attachment.cc",
     "api/attachments/attachment.h",
     "api/attachments/attachment_id.cc",
     "api/attachments/attachment_id.h",
     "api/attachments/attachment_metadata.cc",
     "api/attachments/attachment_metadata.h",
     "api/attachments/attachment_store.cc",
     "api/attachments/attachment_store.h",
     "api/attachments/attachment_store_backend.cc",
@@ skipping 64 matching lines @@
     "base/nigori.cc",
     "base/nigori.h",
     "base/node_ordinal.cc",
     "base/node_ordinal.h",
     "base/ordinal.h",
     "base/progress_marker_map.cc",
     "base/progress_marker_map.h",
     "base/proto_value_ptr.h",
     "base/stop_source.h",
     "base/sync_db_util.h",
-    "base/sync_export.h",
     "base/sync_string_conversions.cc",
     "base/sync_string_conversions.h",
     "base/syncer_error.cc",
     "base/syncer_error.h",
     "base/time.cc",
     "base/time.h",
     "base/unique_position.cc",
     "base/unique_position.h",
     "base/unrecoverable_error_handler.h",
     "base/unrecoverable_error_info.cc",
@@ skipping 310 matching lines @@
     "syncable/syncable_write_transaction.h",
     "syncable/transaction_observer.h",
     "syncable/write_transaction_info.cc",
     "syncable/write_transaction_info.h",
   ]
 
   configs += [ "//build/config:precompiled_headers" ]
 
   public_deps = [
     "//components/sync/core_impl/attachments/proto",
+    "//components/sync/protocol",
     "//net",
   ]
   deps = [
     "//base",
     "//base:i18n",
     "//base/third_party/dynamic_annotations",
-    "//components/sync/protocol",
     "//crypto",
     "//google_apis",
     "//sql",
     "//third_party/leveldatabase",
     "//third_party/zlib",
     "//url",
   ]
 
   if (is_android) {
     deps += [ "//components/sync/android:jni_headers" ]
@@ skipping 10 matching lines @@
     deps += [ "//chromeos" ]
   }
 
   if (is_mac) {
     libs = [
       "CoreFoundation.framework",
       "SystemConfiguration.framework",  # Required by get_session_name_mac.mm.
     ]
   }
 
-  defines = [ "SYNC_IMPLEMENTATION" ]
   configs += [ "//build/config/compiler:wexit_time_destructors" ]
 }
 
 # GYP version: sync/sync_tests.gypi:test_support_sync_core
 static_library("test_support_sync_core") {
   testonly = true
   sources = [
     "base/mock_unrecoverable_error_handler.cc",
     "base/mock_unrecoverable_error_handler.h",
     "base/model_type_test_util.cc",
@@ skipping 239 matching lines @@
     "//third_party/tlslite/",
     "$root_out_dir/pyproto/google/",
   ]
 
   deps = [
     ":test_support_sync_api",
     ":test_support_sync_core",
     ":test_support_sync_core_impl",
     "//base",
     "//components/sync",
-    "//components/sync/protocol",
     "//google_apis",
     "//google_apis:test_support",
     "//net",
     "//net:test_support",
     "//sql",
     "//sql:test_support",
     "//testing/gmock",
     "//testing/gtest",
     "//third_party/leveldatabase",
     "//third_party/protobuf:protobuf_lite",
@@ skipping 153 matching lines @@
 
   # GYP: //components/sync/sync_tests.gypi:test_support_sync_fake_server_android
   static_library("test_support_sync_fake_server_android") {
     testonly = true
     sources = [
       "test/fake_server/android/fake_server_helper_android.cc",
       "test/fake_server/android/fake_server_helper_android.h",
     ]
     deps = [
       ":fake_server_jni",
-      ":sync_core",
+      ":sync",
       ":test_support_sync_fake_server",
       "//base",
-      "//components/sync/protocol:protocol",
       "//testing/gtest",
       "//url:url",
     ]
   }
 }