[CSS Regions] Layout Test for selecting text in 2 regions

LayoutTests/fast/regions/resources/helper.js

Index: LayoutTests/fast/regions/resources/helper.js
diff --git a/LayoutTests/fast/regions/resources/helper.js b/LayoutTests/fast/regions/resources/helper.js
index 6cf7d3f6af3ad0268f60138b0723e3deb42d8857..5233d70fd01a0a14d54c9b4ee568fc88422dac61 100644
--- a/LayoutTests/fast/regions/resources/helper.js
+++ b/LayoutTests/fast/regions/resources/helper.js
@@ -224,6 +224,16 @@ function selectContentByIds(fromId, toId) {
     selectContentByRange(fromRect.left, fromRectVerticalCenter, toRect.right, toRectVerticalCenter);
 }
 
+function selectContentByIdsVertical(fromId, toId) {
+    var fromRect = document.getElementById(fromId).getBoundingClientRect();
+    var toRect = document.getElementById(toId).getBoundingClientRect();
+
+    var fromRectHorizontalCenter = fromRect.left + fromRect.width / 2;
+    var toRectHorizontalCenter = toRect.left + toRect.width / 2;
+
+    selectContentByRange(fromRectHorizontalCenter, fromRect.top, toRectHorizontalCenter, toRect.bottom);
+}
+
 function selectBaseAndExtent(fromId, fromOffset, toId, toOffset) {
     var from = document.getElementById(fromId);
     var to = document.getElementById(toId);
@@ -240,3 +250,10 @@ function mouseClick(positionX, positionY) {
     eventSender.mouseDown();
     eventSender.mouseUp();
 }
+
+function onMouseUpLogSelection(elementId) {
+    document.onmouseup = function() {
+        var selectedContent = document.getElementById(elementId);
+        selectedContent.innerHTML = window.getSelection().getRangeAt(0);
+    }
+}