IndexedDB: Fix coding style issues c/o cpplint.py

content/browser/indexed_db/indexed_db_dispatcher_host.cc

 // Copyright (c) 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 "content/browser/indexed_db/indexed_db_dispatcher_host.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/files/file_path.h"
 #include "base/memory/scoped_vector.h"
@@ skipping 193 matching lines @@
 }
 
 // static
 uint32 IndexedDBDispatcherHost::TransactionIdToProcessId(
     int64 host_transaction_id) {
   return (host_transaction_id >> 32) & 0xffffffff;
 }
 
 void IndexedDBDispatcherHost::HoldBlobDataHandle(
     const std::string& uuid,
-    scoped_ptr<webkit_blob::BlobDataHandle>& blob_data_handle) {
+    scoped_ptr<webkit_blob::BlobDataHandle> blob_data_handle) {
   DCHECK(!ContainsKey(blob_data_handle_map_, uuid));
   blob_data_handle_map_[uuid] = blob_data_handle.release();
 }
 
 void IndexedDBDispatcherHost::DropBlobDataHandle(const std::string& uuid) {
   BlobDataHandleMap::iterator iter = blob_data_handle_map_.find(uuid);
   if (iter != blob_data_handle_map_.end()) {
     delete iter->second;
     blob_data_handle_map_.erase(iter);
   } else {
@@ skipping 766 matching lines @@
 }
 
 void IndexedDBDispatcherHost::CursorDispatcherHost::OnDestroyed(
     int32 ipc_object_id) {
   DCHECK(
       parent_->indexed_db_context_->TaskRunner()->RunsTasksOnCurrentThread());
   parent_->DestroyObject(&map_, ipc_object_id);
 }
 
 }  // namespace content