Remove CSS regions support, keeping a bare minimum to support "region-based" multicol.

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
deleted file mode 100644
index 5233d70fd01a0a14d54c9b4ee568fc88422dac61..0000000000000000000000000000000000000000
--- a/LayoutTests/fast/regions/resources/helper.js
+++ /dev/null
@@ -1,259 +0,0 @@
-function isDebugEnabled()
-{
-    // Add #debug at the end of the url to visually debug the test case.
-    return window.location.hash == "#debug";
-}
-
-function getFlowByName(name)
-{
-    var namedFlows = document.webkitGetNamedFlows();
-    return namedFlows[name] ? namedFlows[name] : null;
-}
-
-function rectToArray(rect)
-{
-    return [rect.top, rect.left, rect.bottom, rect.right, rect.width, rect.height];
-}
-
-function areEqualNumbers(actual, expected, tolerance)
-{
-    var diff = Math.abs(actual - expected);
-    return diff <= tolerance;
-}
-
-function areEqualRects(r1, r2, tolerance)
-{
-    if (r1.length != r2.length)
-        return false;
-    
-    for (var i = 0; i < r1.length; ++i)
-        if (!areEqualNumbers(r1[i], r2[i], tolerance))
-            return false;
-    
-    return true;
-}
-
-function assertTopLeftMatch (r1, r2, tolerance)
-{
-    if (sameTopLeft(r1, r2, tolerance))
-        return "PASS";
-    return "FAIL. Expected top left points to match, but got ("+ r1.top + "," + r1.left + ") and ("+ r2.top + "," + r2.left + ")";
-}
-
-function sameTopLeft(r1, r2, tolerance)
-{
-    if (tolerance === undefined)
-        tolerance = 0;
-    if ( areEqualNumbers(r1.top, r2.top, tolerance) && areEqualNumbers(r1.left, r2.left, tolerance) )
-        return true;
-    return false;
-}
-
-function assertEqualRects(results, name, actualRect, expectedRect, tolerance)
-{
-    if (areEqualRects(actualRect, expectedRect, tolerance))
-        return;
-
-    results.push("FAIL(" + name + ") bounding rect was: [" + actualRect.join(", ") + "], expected: [" + expectedRect.join(", ") + "]");
-}
-
-function testBoundingRects(expectedBoundingRects, tolerance)
-{
-    if (tolerance === undefined)
-        tolerance = 0;
-
-    var results = [];
-
-    for (var name in expectedBoundingRects) {
-        if (!expectedBoundingRects.hasOwnProperty(name))
-            continue;
-        var rect = document.getElementById(name).getBoundingClientRect();
-        assertEqualRects(results, name, rectToArray(rect), expectedBoundingRects[name], tolerance);
-    }
-
-    document.write("<p>" + (results.length ? results.join("<br />") : "PASS") + "</p>");
-    
-    return !results.length;
-}
-
-function assertRectContains(results, name, containerRect, insideRect, tolerance)
-{
-    // make the container rect bigger with tolerance
-    var left = containerRect.left - tolerance;
-    var right = containerRect.right + tolerance;
-    var top = containerRect.top - tolerance;
-    var bottom = containerRect.bottom + tolerance;
-    var pass = left <= insideRect.left && insideRect.right <= right
-               && top <= insideRect.top && insideRect.bottom <= bottom;
-    if (!pass)
-        results.push("FAIL(" + name + ") outside bounding rect was: [" + rectToArray(containerRect).join(", ") + "], and inside was: [" + rectToArray(insideRect).join(", ") + "]");
-    return pass;
-}
-
-function addPageLevelDebugBox(rect, color)
-{
-    var el = document.createElement("div");
-    el.style.position = "absolute";
-    el.style.left = rect.left + "px";
-    el.style.top = rect.top + "px";
-    el.style.width = rect.width + "px";
-    el.style.height = rect.height + "px";
-    el.style.backgroundColor = color;
-    document.body.appendChild(el);
-}
-
-function testContentToRegionsMapping(tolerance)
-{
-    if (tolerance === undefined)
-        tolerance = 0;
-        
-    var debug = isDebugEnabled();
-    var drawnRegions = {};
-    
-    var elements = document.getElementsByClassName("check");
-    var results = [];
-    for (var i = 0; i < elements.length; ++i) {
-        var el = elements[i];
-        var regionId = el.className.split(" ")[1];
-        var region = document.getElementById(regionId);
-        var regionRect = region.getBoundingClientRect();
-        var contentRect = el.getClientRects();
-        if (debug && !drawnRegions[regionId]) {
-            addPageLevelDebugBox(regionRect, "rgba(255,0,0,0.3)");
-            drawnRegions[regionId] = true;
-        }
-        for (var j = 0; j < contentRect.length; ++j) {
-            var passed = assertRectContains(results, el.className, regionRect, contentRect[j], tolerance);
-            if (debug)
-                addPageLevelDebugBox(contentRect[j], passed ? "rgba(0,255,0,0.3)" : "rgba(255,0,255,0.5)");
-        }
-    }
-
-    document.write("<p>" + (results.length ? results.join("<br />") : "PASS") + "</p>");
-
-    return !results.length && !debug;
-}
-
-function logMessage(message, success)
-{
-    var pElem = document.createElement("p");
-
-    var spanElement = document.createElement("span");
-    spanElement.className = success ? "pass" : "fail";
-    var spanTextNode = success ? document.createTextNode("PASS") : document.createTextNode("FAIL");
-    spanElement.appendChild(spanTextNode);
-    pElem.appendChild(spanElement);
-
-    var textNode = document.createTextNode(message);
-    pElem.appendChild(textNode);
-	document.getElementById("console").appendChild(pElem);
-}
-
-function logPassMessage(message)
-{
-    logMessage(message, true);
-}
-
-function logFailMessage(message)
-{
-    var logMsg = "" + message;
-    if (logMsg.length > 0)
-        logMsg = " : " + logMsg;
-    logMessage(logMsg, false);
-}
-
-function assert(expression, failMessage)
-{
-    expression ? logPassMessage("") : logFailMessage(failMessage);
-}
-
-// used by getRegionFlowRanges tests
-function getName(node) {
-  if (!node) return "undefined";
-  if (node.nodeType == 3) // Text node
-    return "#text";
-  // all the others should have an id
-  return node.id;
-}
-
-function getRangeAt(arrRange, index) {
-  if (index < arrRange.length)
-    return [getName(arrRange[index].startContainer), arrRange[index].startOffset, getName(arrRange[index].endContainer), arrRange[index].endOffset];
-  return null;
-}
-
-function compareArrays(current, expected) {
-    try {
-        if (current == null) {
-            testFailed("Null object. Expected [" + expected.toString() + "] was null");
-            return;
-        }
-        if (current.length !== expected.length) {
-            testFailed("Array length differs. Expected [" + expected.toString() + "] was [" + current.toString() + "]");
-            return;
-        }
-        for (var i = 0; i < current.length; i++)
-            if (current[i] !== expected[i]) {
-                testFailed("Expected ["  + expected.toString() + "]. Was [" + current.toString() + "]");
-                return;
-            }
-    } catch (ex) {
-        testFailed(current + " threw exception " + ex);
-    }
-    testPassed("Array ["  + expected.toString() + "] is equal to [" + current.toString() + "]");
-}
-
-function selectContentByRange(fromX, fromY, toX, toY) {
-    if (!window.testRunner)
-        return;
-
-    eventSender.mouseMoveTo(fromX, fromY);
-    eventSender.mouseDown();
-
-    eventSender.mouseMoveTo(toX, toY);
-    eventSender.mouseUp();
-}
-
-function selectContentByIds(fromId, toId) {
-    var fromRect = document.getElementById(fromId).getBoundingClientRect();
-    var toRect = document.getElementById(toId).getBoundingClientRect();
-
-    var fromRectVerticalCenter = fromRect.top + fromRect.height / 2;
-    var toRectVerticalCenter = toRect.top + toRect.height / 2;
-
-    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);
-
-    var selection = window.getSelection();
-    selection.setBaseAndExtent(from, fromOffset, to, toOffset);
-}
-
-function mouseClick(positionX, positionY) {
-    if (!window.testRunner)
-        return;
-
-    eventSender.mouseMoveTo(positionX, positionY);
-    eventSender.mouseDown();
-    eventSender.mouseUp();
-}
-
-function onMouseUpLogSelection(elementId) {
-    document.onmouseup = function() {
-        var selectedContent = document.getElementById(elementId);
-        selectedContent.innerHTML = window.getSelection().getRangeAt(0);
-    }
-}