Adapt ProjectBranchesScreen to use REST for listing/deleting branches

This removes the old RPC for deleting branches which is now not used
anymore.

Change-Id: Ib50c61aa7aaff86f5dfe0244b2925d3532018f93
Signed-off-by: Edwin Kempin <edwin.kempin@sap.com>

gerrit-gwtui/src/main/java/com/google/gerrit/client/access/AccessMap.java

@@ -0,0 +1,53 @@
+// Copyright (C) 2013 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.client.access;
+
+import com.google.gerrit.client.rpc.NativeMap;
+import com.google.gerrit.client.rpc.RestApi;
+import com.google.gerrit.reviewdb.client.Project;
+import com.google.gwt.user.client.rpc.AsyncCallback;
+
+import java.util.Collections;
+import java.util.Set;
+
+/** Access rights available from {@code /access/}. */
+public class AccessMap extends NativeMap<ProjectAccessInfo> {
+  public static void get(Set<Project.NameKey> projects,
+      AsyncCallback<AccessMap> callback) {
+    RestApi api = new RestApi("/access/");
+    for (Project.NameKey p : projects) {
+      api.addParameter("project", p.get());
+    }
+    api.get(NativeMap.copyKeysIntoChildren(callback));
+  }
+
+  public static void get(final Project.NameKey project,
+      final AsyncCallback<ProjectAccessInfo> cb) {
+    get(Collections.singleton(project), new AsyncCallback<AccessMap>() {
+      @Override
+      public void onSuccess(AccessMap result) {
+        cb.onSuccess(result.get(project.get()));
+      }
+
+      @Override
+      public void onFailure(Throwable caught) {
+        cb.onFailure(caught);
+      }
+    });
+  }
+
+  protected AccessMap() {
+  }
+}

gerrit-gwtui/src/main/java/com/google/gerrit/client/access/ProjectAccessInfo.java

@@ -0,0 +1,24 @@
+// Copyright (C) 2013 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.client.access;
+
+import com.google.gwt.core.client.JavaScriptObject;
+
+public class ProjectAccessInfo extends JavaScriptObject {
+  public final native boolean canAddRefs() /*-{ return this.can_add ? true : false; }-*/;
+
+  protected ProjectAccessInfo() {
+  }
+}