Remove base::ScopedPtrHashMap from storage/.

storage/browser/blob/blob_storage_registry.h

Index: storage/browser/blob/blob_storage_registry.h
diff --git a/storage/browser/blob/blob_storage_registry.h b/storage/browser/blob/blob_storage_registry.h
index f27e7ea7de95f29c80c72b6d1460a61a48aeecb8..26d391fb48a4d7fd3bc2fc4dec9dfa1d53dc6042 100644
--- a/storage/browser/blob/blob_storage_registry.h
+++ b/storage/browser/blob/blob_storage_registry.h
@@ -10,10 +10,10 @@
 #include <map>
 #include <memory>
 #include <string>
+#include <unordered_map>
 #include <vector>
 
 #include "base/callback_forward.h"
-#include "base/containers/scoped_ptr_hash_map.h"
 #include "base/macros.h"
 #include "storage/browser/storage_browser_export.h"
 #include "storage/common/blob_storage/blob_storage_constants.h"
@@ -70,12 +70,9 @@ class STORAGE_EXPORT BlobStorageRegistry {
 
  private:
   friend class ViewBlobInternalsJob;
-  using BlobMap =
-      base::ScopedPtrHashMap<std::string, std::unique_ptr<BlobEntry>>;
-  using URLMap = std::map<GURL, std::string>;
 
-  BlobMap blob_map_;
-  URLMap url_to_uuid_;
+  std::unordered_map<std::string, std::unique_ptr<BlobEntry>> blob_map_;
+  std::map<GURL, std::string> url_to_uuid_;
 
   DISALLOW_COPY_AND_ASSIGN(BlobStorageRegistry);
 };