Revert "Implement a Hit Test Cache for same point hits."

LayoutTests/fast/events/hit-test-counts.html

Index: LayoutTests/fast/events/hit-test-counts.html
diff --git a/LayoutTests/fast/events/hit-test-counts.html b/LayoutTests/fast/events/hit-test-counts.html
index 5de7f6f67440c4cab3a4bdc1ed77430ca1d923e8..cfef9cf58136aab4bdc53b2c9fd47f0be9a6635e 100644
--- a/LayoutTests/fast/events/hit-test-counts.html
+++ b/LayoutTests/fast/events/hit-test-counts.html
@@ -26,7 +26,6 @@ html {
 </div>
 <script src="../../resources/js-test.js"></script>
 <script>
-setPrintTestResultsLazily();
 if (window.internals) {
     window.internals.settings.setViewportEnabled(true);
     window.internals.settings.setMockScrollbarsEnabled(true);
@@ -44,27 +43,14 @@ function hitTestCountDelta(doc)
     return newCount - lastCount;
 }
 
-function hitTestCacheHitsDelta(doc)
-{
-    var lastCount = 0;
-    if ('lastHitTestCacheHits' in doc)
-      lastCount = doc.lastHitTestCacheHits;
-    var newCount = internals.hitTestCacheHits(doc);
-    doc.lastHitTestCacheHits = newCount;
-    return newCount - lastCount;
-}
-
 function logCounts(label, documents, multiTapNotification, eventSenderFunction)
 {
     if (eventSenderFunction)
         eventSenderFunction();
 
     var countStr = '';
-    for(var i = 0; i < documents.length; i++) {
-        var hits = hitTestCountDelta(documents[i]);
-        var cacheHits =   hitTestCacheHitsDelta(documents[i]);
-        countStr += ' ' + (hits - cacheHits) + "+" + cacheHits;
-    }
+    for(var i = 0; i < documents.length; i++)
+        countStr += ' ' + hitTestCountDelta(documents[i]);
 
     if (multiTapNotification) {
       debug(label + ':' + eventCounts[label]
@@ -78,10 +64,8 @@ function logCounts(label, documents, multiTapNotification, eventSenderFunction)
 
 function clearCounts(documents)
 {
-    for(var i = 0; i < documents.length; i++) {
+    for(var i = 0; i < documents.length; i++)
         documents[i].lastHitTestCount = internals.hitTestCount(documents[i]);
-        documents[i].lastHitTestCacheHits = internals.hitTestCacheHits(documents[i]);
-    }
 }
 
 function sendEvents(targetX, targetY, documents, multiTapNotification)
@@ -153,9 +137,6 @@ function runTestForDocuments(targetX, targetY, documents)
 {
     sendEvents(targetX, targetY, documents, false);
     window.internals.settings.setMultiTargetTapNotificationEnabled(true);
-    for(var i = 0; i < documents.length; i++) {
-        internals.clearHitTestCache(documents[i]);
-    }
     sendEvents(targetX, targetY, documents, true);
     window.internals.settings.setMultiTargetTapNotificationEnabled(false);
 }
@@ -200,6 +181,5 @@ onload = function() {
     runTestForDocuments(point.x, point.y, [document]);
     debug('');
     window.internals.settings.setViewportEnabled(true);
-    finishJSTest();
 }
 </script>