All Get/Set using the hash_store_id as a key should use *WithoutPathExpansion methods

chrome/browser/prefs/pref_hash_store_impl.cc

Index: chrome/browser/prefs/pref_hash_store_impl.cc
diff --git a/chrome/browser/prefs/pref_hash_store_impl.cc b/chrome/browser/prefs/pref_hash_store_impl.cc
index 1d8f475f7aae31d63ccc82063c2b1c47eabf5762..5e41cb4d8494aed88d1c288c737b8cecbd667cd3 100644
--- a/chrome/browser/prefs/pref_hash_store_impl.cc
+++ b/chrome/browser/prefs/pref_hash_store_impl.cc
@@ -90,13 +90,13 @@ void PrefHashStoreImpl::Reset() {
   // Remove this store's entry in the kStoreVersionsDict.
   base::DictionaryValue* version_dict;
   if (update->GetDictionary(internals::kStoreVersionsDict, &version_dict))
-    version_dict->Remove(hash_store_id_, NULL);
+    version_dict->RemoveWithoutPathExpansion(hash_store_id_, NULL);
 
   // Remove this store's entry in the kHashOfHashesDict.
   base::DictionaryValue* hash_of_hashes_dict;
   if (update->GetDictionaryWithoutPathExpansion(internals::kHashOfHashesDict,
                                                 &hash_of_hashes_dict)) {
-    hash_of_hashes_dict->Remove(hash_store_id_, NULL);
+    hash_of_hashes_dict->RemoveWithoutPathExpansion(hash_store_id_, NULL);
   }
 }
 
@@ -116,7 +116,8 @@ PrefHashStoreImpl::StoreVersion PrefHashStoreImpl::GetCurrentVersion() const {
   int current_version;
   if (!pref_hash_data->GetDictionary(internals::kStoreVersionsDict,
                                      &version_dict) ||
-      !version_dict->GetInteger(hash_store_id_, &current_version)) {
+      !version_dict->GetIntegerWithoutPathExpansion(hash_store_id_,
+                                                    &current_version)) {
     return VERSION_PRE_MIGRATION;
   }
 
@@ -189,7 +190,8 @@ PrefHashStoreImpl::PrefHashStoreTransactionImpl::
     store_versions_dict = new base::DictionaryValue;
     update->Set(internals::kStoreVersionsDict, store_versions_dict);
   }
-  store_versions_dict->SetInteger(outer_->hash_store_id_, VERSION_LATEST);
+  store_versions_dict->SetIntegerWithoutPathExpansion(outer_->hash_store_id_,
+                                                      VERSION_LATEST);
 }
 
 PrefHashStoreTransaction::ValueState