Increase page size for SyncData DB from 4K to maximum supported 32K

sync/syncable/deferred_on_disk_directory_backing_store.cc

Index: sync/syncable/deferred_on_disk_directory_backing_store.cc
diff --git a/sync/syncable/deferred_on_disk_directory_backing_store.cc b/sync/syncable/deferred_on_disk_directory_backing_store.cc
index fbb7845ec38be540b909fea025e43bbd06a00b80..aa8c1abbc40facdea5d5f89da5defdc3e32b9bda 100644
--- a/sync/syncable/deferred_on_disk_directory_backing_store.cc
+++ b/sync/syncable/deferred_on_disk_directory_backing_store.cc
@@ -39,7 +39,7 @@ bool DeferredOnDiskDirectoryBackingStore::SaveChanges(
     // Reopen DB on disk.
     db_.reset(new sql::Connection);
     db_->set_exclusive_locking();
-    db_->set_page_size(4096);
+    db_->set_page_size(databasePageSize_);
     if (!db_->Open(backing_filepath_) || !InitializeTables())
       return false;