[sync] Componentize sync: Part 6: Add more SYNC_EXPORTs to files in src/sync/

sync/syncable/directory_backing_store.cc

-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// 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 "sync/syncable/directory_backing_store.h"
 
 #include "build/build_config.h"
 
 #include <limits>
 
 #include "base/base64.h"
@@ skipping 20 matching lines @@
 using std::string;
 
 namespace syncer {
 namespace syncable {
 
 // This just has to be big enough to hold an UPDATE or INSERT statement that
 // modifies all the columns in the entry table.
 static const string::size_type kUpdateStatementBufferSize = 2048;
 
 // Increment this version whenever updating DB tables.
-extern const int32 kCurrentDBVersion;  // Global visibility for our unittest.
 const int32 kCurrentDBVersion = 85;
 
 // Iterate over the fields of |entry| and bind each to |statement| for
 // updating.  Returns the number of args bound.
 void BindFields(const EntryKernel& entry,
                 sql::Statement* statement) {
   int index = 0;
   int i = 0;
   for (i = BEGIN_FIELDS; i < INT64_FIELDS_END; ++i) {
     statement->BindInt64(index++, entry.ref(static_cast<Int64Field>(i)));
@@ skipping 1257 matching lines @@
     bool prev_exists = (ids_set.find(entry->ref(PREV_ID).value()) != end);
     bool parent_exists = (ids_set.find(entry->ref(PARENT_ID).value()) != end);
     bool next_exists = (ids_set.find(entry->ref(NEXT_ID).value()) != end);
     is_ok = is_ok && prev_exists && parent_exists && next_exists;
   }
   return is_ok;
 }
 
 }  // namespace syncable
 }  // namespace syncer