Improve fallback for Burmese with leading punctuation + spacing mark

third_party/WebKit/LayoutTests/inspector-protocol/layout-fonts/resources/layout-font-test.js

 function test()
 {
     var documentNodeId;
     var documentNodeSelector;
     var testSelectors = [];
     var collectedFontUsage = {};
 
     InspectorTest.requestDocumentNodeId(onDocumentNodeId);
 
     function onDocumentNodeId(nodeId)
@@ skipping 33 matching lines @@
     }
 
 
     function postResultsToPage()
     {
         // This interleaves the used fonts data with the page elements so that
         // the content_shell text dump is easier to validate.
         InspectorTest.evaluateInInspectedPage("injectCollectedResultsInPage(" +
                                               JSON.stringify(collectedFontUsage) +
                                               ")");
+        InspectorTest.evaluateInInspectedPage("postTestHookWithFontResults(" +
+                                              JSON.stringify(collectedFontUsage) +
+                                              ")");
+
     }
 
     function platformFontsForElementWithSelector(selector)
     {
         InspectorTest.requestNodeId(documentNodeId, selector, onNodeId);
 
         function onNodeId(nodeId)
         {
             InspectorTest.sendCommandOrDie("CSS.getPlatformFontsForNode", { nodeId: nodeId }, onGotComputedFonts);
         }
@@ skipping 41 matching lines @@
         var resultTextNode = document.createTextNode(resultText);
         resultTextPre.appendChild(resultTextNode);
         resultElement.appendChild(resultTextPre);
         testNode.parentNode.insertBefore(resultElement, testNode.nextSibling);
     }
 }
 
 window.addEventListener("DOMContentLoaded", function () {
     runTest();
 }, false);