QueryProjects: introduce apply() without parameters

QueryProjects REST API does not depend on the resource passed
as input but purely on its query parameters.

Introduce an apply() method without parameters so that the
absence of dependency with the resource becomes more explicit.

Change-Id: Ia8ded07a56a00af15f1fa44679886f24d8eabdd9

java/com/google/gerrit/server/restapi/project/QueryProjects.java

diff --git a/java/com/google/gerrit/server/restapi/project/QueryProjects.java b/java/com/google/gerrit/server/restapi/project/QueryProjects.java
index 5561d4a..44432aa 100644
--- a/java/com/google/gerrit/server/restapi/project/QueryProjects.java
+++ b/java/com/google/gerrit/server/restapi/project/QueryProjects.java
@@ -89,6 +89,11 @@
   @Override
   public List<ProjectInfo> apply(TopLevelResource resource)
       throws BadRequestException, MethodNotAllowedException, OrmException {
+    return apply();
+  }
+
+  public List<ProjectInfo> apply()
+      throws BadRequestException, MethodNotAllowedException, OrmException {
     if (Strings.isNullOrEmpty(query)) {
       throw new BadRequestException("missing query field");
     }