Store per-origin metadata for localstorage.

content/browser/leveldb_wrapper_impl.cc

 // Copyright 2016 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 "content/browser/leveldb_wrapper_impl.h"
 
 #include "base/bind.h"
 #include "base/threading/thread_task_runner_handle.h"
 #include "components/leveldb/public/cpp/util.h"
 #include "content/public/browser/browser_thread.h"
@@ skipping 319 matching lines @@
 void LevelDBWrapperImpl::CommitChanges() {
   DCHECK(database_);
   DCHECK(map_);
   if (!commit_batch_)
     return;
 
   commit_rate_limiter_.add_samples(1);
 
   // Commit all our changes in a single batch.
   std::vector<leveldb::mojom::BatchedOperationPtr> operations =
-      prepare_to_commit_callback_.Run();
+      prepare_to_commit_callback_.Run(*this);
   if (commit_batch_->clear_all_first) {
     leveldb::mojom::BatchedOperationPtr item =
         leveldb::mojom::BatchedOperation::New();
     item->type = leveldb::mojom::BatchOperationType::DELETE_PREFIXED_KEY;
     item->key = prefix_;
     operations.push_back(std::move(item));
   }
   size_t data_size = 0;
   for (const auto& key: commit_batch_->changed_keys) {
     data_size += key.size();
@@ skipping 25 matching lines @@
                               weak_ptr_factory_.GetWeakPtr()));
 }
 
 void LevelDBWrapperImpl::OnCommitComplete(leveldb::mojom::DatabaseError error) {
   // TODO(michaeln): What if it fails, uma here or in the DB class?
   --commit_batches_in_flight_;
   StartCommitTimer();
 }
 
 }  // namespace content