Fix implicit access to raw pointer of scoped_refptr.

content/browser/cache_storage/cache_storage.cc

 // Copyright 2014 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/cache_storage/cache_storage.h"
 
 #include <stddef.h>
 
 #include <set>
 #include <string>
@@ skipping 688 matching lines @@
                              weak_factory_.GetWeakPtr(), cache_name, callback));
 }
 
 void CacheStorage::CreateCacheDidCreateCache(
     const std::string& cache_name,
     const CacheAndErrorCallback& callback,
     scoped_refptr<CacheStorageCache> cache) {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
 
   UMA_HISTOGRAM_BOOLEAN("ServiceWorkerCache.CreateCacheStorageResult",
-                        cache != nullptr);
+                        static_cast<bool>(cache));
 
   if (!cache.get()) {
     callback.Run(scoped_refptr<CacheStorageCache>(),
                  CACHE_STORAGE_ERROR_STORAGE);
     return;
   }
 
   cache_map_.insert(std::make_pair(cache_name, cache->AsWeakPtr()));
   ordered_cache_names_.push_back(cache_name);
 
@@ skipping 312 matching lines @@
 void CacheStorage::PendingSizeCallback(const SizeCallback& callback,
                                        int64_t size) {
   base::WeakPtr<CacheStorage> cache_storage = weak_factory_.GetWeakPtr();
 
   callback.Run(size);
   if (cache_storage)
     scheduler_->CompleteOperationAndRunNext();
 }
 
 }  // namespace content