Extract permission alias info from PermissionsProvider

extensions/common/extensions_alias_provider.cc

Index: extensions/common/extensions_alias_provider.cc
diff --git a/extensions/common/extensions_alias_provider.cc b/extensions/common/extensions_alias_provider.cc
new file mode 100644
index 0000000000000000000000000000000000000000..5ca46d64dbf2330eee6a119855c612f28f10ac88
--- /dev/null
+++ b/extensions/common/extensions_alias_provider.cc
@@ -0,0 +1,43 @@
+// Copyright 2016 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 "extensions/common/extensions_alias_provider.h"
+
+#include "extensions/common/alias.h"
+
+namespace extensions {
+
+namespace {
+
+struct AliasInfo {
+  const char* const alias_name;
+  const char* const real_name;
+  const char* const upper_version_bound;
+};
+
+const AliasInfo kPermissionAliases[] = {
+    {"alwaysOnTopWindows", "app.window.alwaysOnTop", NULL},
+    {"fullscreen", "app.window.fullscreen", NULL},
+    {"overrideEscFullscreen", "app.window.fullscreen.overrideEsc", NULL},
+    {"unlimited_storage", "unlimitedStorage", NULL}};
+
+}  // namespace
+
+ExtensionsAliasProvider::ExtensionsAliasProvider() {}
+
+std::vector<Alias> ExtensionsAliasProvider::GetApiAliases() const {
+  return std::vector<Alias>();
+}
+
+std::vector<Alias> ExtensionsAliasProvider::GetPermissionAliases() const {
+  std::vector<Alias> result;
+  for (size_t i = 0; i < arraysize(kPermissionAliases); ++i) {
+    const AliasInfo& kAlias = kPermissionAliases[i];
+    result.push_back(
+        Alias(kAlias.alias_name, kAlias.real_name, kAlias.upper_version_bound));
+  }
+  return result;
+}
+
+}  // namespace extensions