extensions: Introduce a fake ExtensionsClient implementation.

extensions/test/test_permissions_provider.cc

+// Copyright 2014 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/test/test_permissions_provider.h"
+
+namespace extensions {
+
+TestPermissionsProvider::TestPermissionsProvider() {}
+
+TestPermissionsProvider::~TestPermissionsProvider() {}
+
+std::vector<APIPermissionInfo*> TestPermissionsProvider::GetAllPermissions()
+    const {
+  std::vector<APIPermissionInfo*> permissions;

[tfarina, 2014/04/11 05:00:26]

I will look into this next.

[Yoyo Zhou, 2014/04/11 21:10:29]

Add a TODO here. That helps distinguish between intentionally-left-blank and
blank-but-working-on-it.

[tfarina, 2014/04/13 21:40:52]

Done.

+  return permissions;
+}
+
+std::vector<PermissionsProvider::AliasInfo>
+TestPermissionsProvider::GetAllAliases() const {
+  std::vector<PermissionsProvider::AliasInfo> aliases;
+  return aliases;
+}
+
+}  // namespace extensions