Use MakeWeak() to clean up function pointers in NativeHandler.

chrome/renderer/extensions/module_system.cc

 // Copyright (c) 2012 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 "chrome/renderer/extensions/module_system.h"
 
 #include "base/bind.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebScopedMicrotaskSuppression.h"
 
 namespace {
 
 const char* kModuleSystem = "module_system";
 const char* kModuleName = "module_name";
 const char* kModuleField = "module_field";
 const char* kModulesField = "modules";
 
-} // namespace
+}  // namespace
 
 namespace extensions {
 
 ModuleSystem::ModuleSystem(v8::Handle<v8::Context> context,
                            SourceMap* source_map)
     : context_(v8::Persistent<v8::Context>::New(context)),
       source_map_(source_map),
       natives_enabled_(0) {
   RouteFunction("require",
       base::Bind(&ModuleSystem::RequireForJs, base::Unretained(this)));
@@ skipping 269 matching lines @@
   v8::Handle<v8::String> right = v8::String::New("\n})");
   return handle_scope.Close(
       v8::String::Concat(left, v8::String::Concat(source, right)));
 }
 
 v8::Handle<v8::Value> ModuleSystem::ThrowException(const std::string& message) {
   return v8::ThrowException(v8::String::New(message.c_str()));
 }
 
 }  // extensions