Moved creation of GerritPersonIdent to a separate provider.

It's first step to make GerritServer focused on providing one specific
functionality.

Since now classes that need PersonIdent that represents Gerrit itself can
ask for it using @GerritPersonIdent annotation or by depending on Provider
instance and calling get() method.

Change-Id: I9be482c6afdfc5cf4ab44efcb9262a04b3a543a5
Signed-off-by: Grzegorz Kossakowski <grek@google.com>

src/main/java/com/google/gerrit/server/GerritPersonIdent.java

@@ -0,0 +1,30 @@
+// Copyright (C) 2009 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.gerrit.server;
+
+import static java.lang.annotation.RetentionPolicy.RUNTIME;
+
+import com.google.inject.BindingAnnotation;
+
+import java.lang.annotation.Retention;
+
+/**
+ * Marker on a {@link org.spearce.jgit.lib.PersonIdent} pointing to the identity representing Gerrit
+ * server itself.
+ */
+@Retention(RUNTIME)
+@BindingAnnotation
+public @interface GerritPersonIdent {
+}