[Extensions Bindings] Add support for updateArgumentsPreValidate

extensions/renderer/api_binding_test_util.cc

 // 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.
 
 #include "extensions/renderer/api_binding_test_util.h"
 
 #include "base/json/json_reader.h"
 #include "base/json/json_writer.h"
 #include "base/strings/string_util.h"
 #include "base/values.h"
@@ skipping 117 matching lines @@
   return RunFunction(function, context, context->Global(), argc, argv);
 }
 
 void RunFunctionOnGlobalAndIgnoreResult(v8::Local<v8::Function> function,
                                         v8::Local<v8::Context> context,
                                         int argc,
                                         v8::Local<v8::Value> argv[]) {
   RunFunction(function, context, context->Global(), argc, argv);
 }
 
+v8::Global<v8::Value> RunFunctionOnGlobalAndReturnHandle(
+    v8::Local<v8::Function> function,
+    v8::Local<v8::Context> context,
+    int argc,
+    v8::Local<v8::Value> argv[]) {
+  return v8::Global<v8::Value>(
+      context->GetIsolate(),
+      RunFunction(function, context, context->Global(), argc, argv));
+}
+
 void RunFunctionAndExpectError(v8::Local<v8::Function> function,
                                v8::Local<v8::Context> context,
                                v8::Local<v8::Value> receiver,
                                int argc,
                                v8::Local<v8::Value> argv[],
                                const std::string& expected_error) {
   std::string error;
   v8::Local<v8::Value> result;
   EXPECT_FALSE(RunFunctionImpl(function, context, receiver, argc, argv, &result,
                                &error));
@@ skipping 38 matching lines @@
   if (v8_val->IsUndefined())
     return "undefined";
   if (v8_val->IsFunction())
     return "function";
   std::unique_ptr<base::Value> json_prop = V8ToBaseValue(v8_val, context);
   DCHECK(json_prop) << key;
   return ValueToString(*json_prop);
 }
 
 }  // namespace extensions