Persist sessionStorage on disk.

webkit/dom_storage/session_storage_database_unittest.cc

Index: webkit/dom_storage/session_storage_database_unittest.cc
diff --git a/webkit/dom_storage/session_storage_database_unittest.cc b/webkit/dom_storage/session_storage_database_unittest.cc
index a9d159cf16d5f40f03cfe39882014f362fc93afa..2486c4916f76fe5a7903f98ef6a237287813bf1a 100644
--- a/webkit/dom_storage/session_storage_database_unittest.cc
+++ b/webkit/dom_storage/session_storage_database_unittest.cc
@@ -851,4 +851,19 @@ TEST_F(SessionStorageDatabaseTest, NamespaceOffsetDeleteNamespace) {
   CheckAreaData(-1, kOrigin1, data1);
 }
 
+TEST_F(SessionStorageDatabaseTest, DeleteNamespaceConfusion) {
+  // Regression test for a bug where a namespace with id 10 prevented deleting
+  // the namespace with id 1.
+
+  // Create namespace with IDs 0 to 10. The real IDs in the DB will correspond
+  // to these IDs.
+  ValuesMap data1;
+  data1[kKey1] = kValue1;
+  for (int i = 0; i <= 10; ++i)
+    ASSERT_TRUE(db_->CommitAreaChanges(i, kOrigin1, false, data1));
+
+  // Delete the namespace with ID 1.
+  EXPECT_TRUE(db_->DeleteNamespace(1));
+}
+
 }  // namespace dom_storage