Fix Me2Me host to properly reload config when it changes.

remoting/host/composite_host_config.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 "remoting/host/composite_host_config.h"
 
 #include "remoting/host/json_host_config.h"
 
 namespace remoting {
 
 CompositeHostConfig::CompositeHostConfig() {
 }
 
 CompositeHostConfig::~CompositeHostConfig() {
 }
 
 bool CompositeHostConfig::AddConfigPath(const FilePath& path) {
   scoped_ptr<JsonHostConfig> config(new JsonHostConfig(path));
   if (!config->Read()) {
     return false;
   }
   configs_.push_back(config.release());
   return true;
 }
 
+bool CompositeHostConfig::Reload() {
+  bool result = true;
+  for (ScopedVector<JsonHostConfig>::iterator it = configs_.begin();
+       it != configs_.end(); ++it) {
+    result = result && (*it)->Read();
+  }
+  return result;
+}
+
 bool CompositeHostConfig::GetString(const std::string& path,
                                     std::string* out_value) const {
-  for (std::vector<HostConfig*>::const_iterator it = configs_.begin();
+  for (ScopedVector<JsonHostConfig>::const_iterator it = configs_.begin();
        it != configs_.end(); ++it) {
     if ((*it)->GetString(path, out_value))
       return true;
   }
   return false;
 }
 
 bool CompositeHostConfig::GetBoolean(const std::string& path,
                                      bool* out_value) const {
-  for (std::vector<HostConfig*>::const_iterator it = configs_.begin();
+  for (ScopedVector<JsonHostConfig>::const_iterator it = configs_.begin();
        it != configs_.end(); ++it) {
     if ((*it)->GetBoolean(path, out_value))
       return true;
   }
   return false;
 }
 
 }  // namespace remoting