Identity API: add multi-account support to token cache and request queues

chrome/browser/extensions/api/identity/extension_token_key.cc

+// Copyright 2013 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/browser/extensions/api/identity/extension_token_key.h"
+
+namespace extensions {
+
+ExtensionTokenKey::ExtensionTokenKey(const std::string& extension_id,
+                                     const std::string& account_id,
+                                     const std::set<std::string> scopes)
+    : extension_id(extension_id), account_id(account_id), scopes(scopes) {}
+
+ExtensionTokenKey::~ExtensionTokenKey() {}
+
+bool ExtensionTokenKey::operator<(const ExtensionTokenKey& rhs) const {
+  if (extension_id < rhs.extension_id)
+    return true;
+  else if (rhs.extension_id < extension_id)
+    return false;
+
+  if (account_id < rhs.account_id)
+    return true;
+  else if (rhs.account_id < account_id)
+    return false;
+
+  return scopes < rhs.scopes;
+}
+
+}  // namespace extensions