[Sync] Convert sync to a static library.

components/sync/syncable/directory_backing_store_unittest.cc

 // Copyright 2012 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 "components/sync/syncable/directory_backing_store.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <map>
 #include <memory>
 #include <string>
 
 #include "base/files/file_path.h"
 #include "base/files/scoped_temp_dir.h"
 #include "base/message_loop/message_loop.h"
 #include "base/run_loop.h"
 #include "base/stl_util.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/stringprintf.h"
 #include "build/build_config.h"
 #include "components/sync/base/node_ordinal.h"
-#include "components/sync/base/sync_export.h"
 #include "components/sync/base/time.h"
 #include "components/sync/protocol/bookmark_specifics.pb.h"
 #include "components/sync/protocol/sync.pb.h"
 #include "components/sync/syncable/directory.h"
 #include "components/sync/syncable/on_disk_directory_backing_store.h"
 #include "components/sync/syncable/syncable-inl.h"
 #include "components/sync/test/directory_backing_store_corruption_testing.h"
 #include "components/sync/test/test_directory_backing_store.h"
 #include "sql/connection.h"
 #include "sql/statement.h"
@@ skipping 15 matching lines @@
   std::unique_ptr<EntryKernel> entry(new EntryKernel());
   std::string id_string = base::Int64ToString(id) + id_suffix;
   entry->put(ID, Id::CreateFromClientString(id_string));
   entry->put(META_HANDLE, id);
   entry->mark_dirty(NULL);
   return entry;
 }
 
 }  // namespace
 
-SYNC_EXPORT extern const int32_t kCurrentPageSizeKB;
-SYNC_EXPORT extern const int32_t kCurrentDBVersion;
+extern const int32_t kCurrentPageSizeKB;
+extern const int32_t kCurrentDBVersion;
 
 class MigrationTest : public testing::TestWithParam<int> {
  public:
   void SetUp() override { ASSERT_TRUE(temp_dir_.CreateUniqueTempDir()); }
 
  protected:
   std::string GetUsername() {
     return "nick@chromium.org";
   }
 
@@ skipping 4193 matching lines @@
   ASSERT_FALSE(dbs->SaveChanges(snapshot));
   // At this point the handler has been posted but not executed.
   ASSERT_FALSE(was_called);
   // Pump the message loop and see that it is executed.
   base::RunLoop().RunUntilIdle();
   ASSERT_TRUE(was_called);
 }
 
 }  // namespace syncable
 }  // namespace syncer