Performance tuning: Remove use of echo event for the opening of new window

Please open another ticket for that ( AFAIR, the sizing of the iFrame is not consistent without the echo. )

you can review my case https://groups.google.com/forum/#!topic/idempiere/3HJkRTdqGqU
it's same.
my patch is working very good for long time

1. HG changeset patch

2. User hieplq

3. Date 1404129032 -25200

4. Branch hsv

5. Node ID f9295245f3970e4f2f27fcdb59bc782179959ec8

6. Parent bf9d7a54289475a8da89d4c939c351c92da46d47
   hsvonly:Why ZkJRViewer embed report at a echoEvent?
   refer: https://groups.google.com/forum/#!topic/idempiere/3HJkRTdqGqU

diff --git a/org.adempiere.ui.zk/WEB-INF/src/org/adempiere/webui/window/ZkJRViewer.java b/org.adempiere.ui.zk/WEB-INF/src/org/adempiere/webui/window/ZkJRViewer.java
— a/org.adempiere.ui.zk/WEB-INF/src/org/adempiere/webui/window/ZkJRViewer.java
+++ b/org.adempiere.ui.zk/WEB-INF/src/org/adempiere/webui/window/ZkJRViewer.java
@@ -297,8 +297,7 @@
Thread.currentThread().setContextClassLoader(cl);
}

- iframe.setSrc(null);
- Events.echoEvent("onRenderReport", this, null);
+ iframe.setContent(media);
}

private File getPDF() throws IOException, JRException {
@@ -318,10 +317,6 @@
return file;
}

- public void onRenderReport() {
- iframe.setContent(media);
- }
-
@Override
public void onClose(Tabpanel tabPanel) {
Tab tab = tabPanel.getLinkedTab();