[wasm] enable wasm structured cloning in specific cases

third_party/WebKit/LayoutTests/http/tests/wasm/wasm_indexeddb_test.js

 // Copyright 2016 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.
 
 var db_name = 'db';
 var obj_store = 'store';
 var module_key = 'my_module';
 
 function createAndSaveToIndexedDB() {
-  return new Promise( (resolve, reject) => {
+  return new Promise((resolve, reject) => {
     createWasmModule()
-      .then (mod => {
+      .then(mod => {
         var delete_request = indexedDB.deleteDatabase(db_name);
         delete_request.onsuccess = function() {
           var open_request = indexedDB.open(db_name);
           open_request.onupgradeneeded = function() {
             var db = open_request.result;
             db.createObjectStore(obj_store);
           };
           open_request.onsuccess = function() {
             var db = open_request.result;
             var tx = db.transaction(obj_store, 'readwrite');
             var store = tx.objectStore(obj_store);
             store.put(mod, module_key);
             tx.oncomplete = function() {
               resolve();
             };
+            tx.onabort = function() {
+              reject(transaction.error);
+            };
           };
         };
       })
       .catch(error => reject(error));
   });
 }
 
+var kErrorMsg = "failed to retrieve object";
+
 function loadFromIndexedDB(prev) {
-  return new Promise(resolve => {
+  return new Promise((resolve, reject) => {
     prev.then(() => {
       var open_request = indexedDB.open(db_name);
       open_request.onsuccess = function() {
         var db = open_request.result;
         var tx = db.transaction(obj_store);
         var store = tx.objectStore(obj_store);
         var get_request = store.get(module_key);
         get_request.onsuccess = function() {
           var mod = get_request.result;
-          var instance = new WebAssembly.Instance(get_request.result);
-          resolve(instance.exports.increment(1));
+          if (mod instanceof WebAssembly.Module) {
+            try {
+              var instance = new WebAssembly.Instance(mod);
+            } catch(e) {
+              reject(e);

[jsbell, 2017/03/24 16:51:13]

Should return here, or move the resolve into the try{} block

[Mircea Trofin, 2017/03/24 22:52:07]

Done.

+            }
+            resolve(instance.exports.increment(1));
+          } else {
+            assert_equals(mod, null);
+            reject(new Error(kErrorMsg));
+          }
         };
       };
     });
   });
 }
 
-function TestIndexedDBLoadStore() {
-  return loadFromIndexedDB(createAndSaveToIndexedDB())
-    .then((res) => assert_equals(res, 2))
-    .catch(error => assert_unreached(error));
+function TestIndexedDBLoadStoreSecure() {
+  if (window.location.origin != get_host_info().AUTHENTICATED_ORIGIN) {
+    window.location = get_host_info().AUTHENTICATED_ORIGIN + window.location.pathname;
+  } else {
+    return loadFromIndexedDB(createAndSaveToIndexedDB())
+      .then(res => assert_equals(res, 2),
+            error => assert_unreached(error));
+  }
 }
+
+function TestIndexedDBLoadStoreInsecure() {
+  if (window.location.origin != get_host_info().UNAUTHENTICATED_ORIGIN) {
+    window.location = get_host_info().UNAUTHENTICATED_ORIGIN + window.location.pathname;
+  } else {
+    return loadFromIndexedDB(createAndSaveToIndexedDB())
+      .then(assert_unreached,
+            error => assert_equals(error.message, kErrorMsg));
+  }
+}