Change scoped_ptr to std::unique_ptr in //net/disk_cache.

net/disk_cache/disk_cache_test_util.cc

Index: net/disk_cache/disk_cache_test_util.cc
diff --git a/net/disk_cache/disk_cache_test_util.cc b/net/disk_cache/disk_cache_test_util.cc
index 0a2a27ecc8b6c0cc87607a688f70a8edfb540fd4..7e96448b7c6ffa24bc8aa26be7f5041f2b9662e0 100644
--- a/net/disk_cache/disk_cache_test_util.cc
+++ b/net/disk_cache/disk_cache_test_util.cc
@@ -61,7 +61,7 @@ bool DeleteCache(const base::FilePath& path) {
 bool CheckCacheIntegrity(const base::FilePath& path,
                          bool new_eviction,
                          uint32_t mask) {
-  scoped_ptr<disk_cache::BackendImpl> cache(new disk_cache::BackendImpl(
+  std::unique_ptr<disk_cache::BackendImpl> cache(new disk_cache::BackendImpl(
       path, mask, base::ThreadTaskRunnerHandle::Get(), NULL));
   if (!cache.get())
     return false;