Updated screenshots and refined browser test

Author: shai-almog

scripts/android/screenshots/GraphicsPipeline.png

@@ -4,6 +4,7 @@
 import com.codename1.ui.Form;
 import com.codename1.ui.CN;
 import com.codename1.ui.layouts.BorderLayout;
+import com.codename1.ui.util.UITimer;
 
 public class BrowserComponentScreenshotTest extends BaseTest {
     private BrowserComponent browser;
@@ -22,7 +23,8 @@ public boolean runTest() throws Exception {
     }
 
     protected void registerReadyCallback(Form parent, final Runnable run) {
-        browser.addWebEventListener(BrowserComponent.onLoad, evt -> CN.callSerially(run));
+        browser.addWebEventListener(BrowserComponent.onLoad, evt ->
+                UITimer.timer(200, false, parent, run));
     }
 
     private static String buildHtml() {

scripts/android/screenshots/GraphicsShapesAndGradients.png

@@ -53,7 +53,7 @@ private static void updateStatus(Label label, Form form, String message) {
             }
         });
     }
-    
+
     private static byte[] buildToneWav() {
         int totalSamples = (int) (SAMPLE_RATE * TONE_DURATION_SECONDS);
         int bytesPerSample = 2;