Remove the need to have separate config for authentication.

remoting/host/composite_host_config.cc

Index: remoting/host/composite_host_config.cc
diff --git a/remoting/host/composite_host_config.cc b/remoting/host/composite_host_config.cc
new file mode 100644
index 0000000000000000000000000000000000000000..cf130a9decf7271055cfac4fe7856e0554322a6e
--- /dev/null
+++ b/remoting/host/composite_host_config.cc
@@ -0,0 +1,46 @@
+// 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::GetString(const std::string& path,
+                                    std::string* out_value) const {
+  for (std::vector<HostConfig*>::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();
+       it != configs_.end(); ++it) {
+    if ((*it)->GetBoolean(path, out_value))
+      return true;
+  }
+  return false;
+}
+
+}  // namespace remoting