Fix remaining incompatibilities between scoped_ptr and unique_ptr.

storage/browser/blob/blob_storage_context.cc

 // Copyright (c) 2013 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 "storage/browser/blob/blob_storage_context.h"
 
 #include <stddef.h>
 #include <stdint.h>
 #include <algorithm>
 #include <limits>
@@ skipping 42 matching lines @@
 
 BlobStorageContext::BlobMapEntry::BlobMapEntry(int refcount,
                                                InternalBlobData::Builder* data)
     : refcount(refcount), flags(0), data_builder(data) {
 }
 
 BlobStorageContext::BlobMapEntry::~BlobMapEntry() {
 }
 
 bool BlobStorageContext::BlobMapEntry::IsBeingBuilt() {
-  return data_builder;
+  return !!data_builder;
 }
 
 BlobStorageContext::BlobStorageContext() : memory_usage_(0) {
 }
 
 BlobStorageContext::~BlobStorageContext() {
   STLDeleteContainerPairSecondPointers(blob_map_.begin(), blob_map_.end());
 }
 
 scoped_ptr<BlobDataHandle> BlobStorageContext::GetBlobDataFromUUID(
@@ skipping 426 matching lines @@
   if (found == blob_map_.end())
     return false;
   return found->second->IsBeingBuilt();
 }
 
 bool BlobStorageContext::IsUrlRegistered(const GURL& blob_url) {
   return public_blob_urls_.find(blob_url) != public_blob_urls_.end();
 }
 
 }  // namespace storage