remove some calls to to-be-deprecated v8::Value::To* functions

extensions/renderer/module_system_test.cc

Index: extensions/renderer/module_system_test.cc
diff --git a/extensions/renderer/module_system_test.cc b/extensions/renderer/module_system_test.cc
index 9dd60d6f58db4fdc0fbe92419da2b4db52bae994..fb197fce2f7ef7254afadd3f3220101940005e03 100644
--- a/extensions/renderer/module_system_test.cc
+++ b/extensions/renderer/module_system_test.cc
@@ -80,13 +80,13 @@ class ModuleSystemTestEnvironment::AssertNatives
   void AssertTrue(const v8::FunctionCallbackInfo<v8::Value>& args) {
     CHECK_EQ(1, args.Length());
     assertion_made_ = true;
-    failed_ = failed_ || !args[0]->ToBoolean()->Value();
+    failed_ = failed_ || !args[0]->ToBoolean(args.GetIsolate())->Value();
   }
 
   void AssertFalse(const v8::FunctionCallbackInfo<v8::Value>& args) {
     CHECK_EQ(1, args.Length());
     assertion_made_ = true;
-    failed_ = failed_ || args[0]->ToBoolean()->Value();
+    failed_ = failed_ || args[0]->ToBoolean(args.GetIsolate())->Value();
   }
 
  private: