Remove CSSCharsetRule

LayoutTests/http/tests/css/resources/shared-stylesheet-mutation.js

 var testCount = 17;
 var testDocuments = [];
 var testSheets = [];
 var expectedResults = [];
 
 function buildTestFrame(content)
 {
     var iframe = document.createElement("iframe");
     iframe.setAttribute("width", "100");
     iframe.setAttribute("height", "50");
@@ skipping 59 matching lines @@
 
 function executeTests(createCSSOMObjectBeforeTest)
 {
     if (createCSSOMObjectBeforeTest) {
         for (var i = 0; i < testSheets.length; ++i)
             ensureCSSOM(testSheets[i].cssRules);
     }
 
     mutationTest(0, '', 'red');
 
-    mutationTest(1, 'sheet.insertRule("#testdiv { background-color: green; }", 3)', 'green');
-    mutationTest(2, 'sheet.deleteRule(2)');
-    mutationTest(3, 'sheet.cssRules[2].insertRule("#testdiv { background-color: green; }", 1)', 'green');
-    mutationTest(4, 'sheet.cssRules[2].deleteRule(0)', 'green');
-    mutationTest(5, 'sheet.cssRules[2].cssRules[0].style.setProperty("background-color", "green", "")', 'green');
-    mutationTest(6, 'sheet.cssRules[2].cssRules[0].style.removeProperty("background-color")', 'green');
-    mutationTest(7, 'sheet.cssRules[2].cssRules[0].style.cssText = "background-color: green"', 'green');
-    mutationTest(8, 'sheet.cssRules[2].cssRules[0].selectorText = "#dontmatch"', 'green');
-    mutationTest(9, 'sheet.cssRules[2].media.mediaText = "print"', 'green');
+    mutationTest(1, 'sheet.insertRule("#testdiv { background-color: green; }", 2)', 'green');
+    mutationTest(2, 'sheet.deleteRule(1)');
+    mutationTest(3, 'sheet.cssRules[1].insertRule("#testdiv { background-color: green; }", 1)', 'green');
+    mutationTest(4, 'sheet.cssRules[1].deleteRule(0)', 'green');
+    mutationTest(5, 'sheet.cssRules[1].cssRules[0].style.setProperty("background-color", "green", "")', 'green');
+    mutationTest(6, 'sheet.cssRules[1].cssRules[0].style.removeProperty("background-color")', 'green');
+    mutationTest(7, 'sheet.cssRules[1].cssRules[0].style.cssText = "background-color: green"', 'green');
+    mutationTest(8, 'sheet.cssRules[1].cssRules[0].selectorText = "#dontmatch"', 'green');
+    mutationTest(9, 'sheet.cssRules[1].media.mediaText = "print"', 'green');
     
     var testString = '\
-        sheet.cssRules[2].media.appendMedium("print");\
-        sheet.cssRules[2].media.deleteMedium("all");\
+        sheet.cssRules[1].media.appendMedium("print");\
+        sheet.cssRules[1].media.deleteMedium("all");\
     ';
     mutationTest(10, testString, 'green');
     
     var testString = '\
-        sheet.deleteRule(3);\
-        sheet.insertRule("#testdiv { background-color: green; }", 1);\
         sheet.deleteRule(2);\
-        sheet.deleteRule(0);\
+        sheet.insertRule("#testdiv { background-color: green; }", 0);\
+        sheet.deleteRule(1);\
         sheet.deleteRule(3);\
         sheet.deleteRule(1);\
         sheet.deleteRule(1);\
     ';
     mutationTest(11, testString, 'green');
 
     var importRule = '@import "data:text/css;charset=utf-8,%23testdiv%7Bbackground-color%3Agreen%20!important%7D";';
-    mutationTest(12, "sheet.insertRule('"+importRule+"', 1)", 'green');
+    mutationTest(12, "sheet.insertRule('"+importRule+"', 0)", 'green');
 
-    mutationTest(13, 'sheet.cssRules[3].selectorText = "foo"', 'red');
-    mutationTest(14, 'sheet.cssRules[4].insertRule("40% { left: 40px; }")', 'red');
-    mutationTest(15, 'sheet.cssRules[4].deleteRule("100%")', 'red');
-    mutationTest(16, 'sheet.cssRules[5].style.setProperty("font-family", "Bar", "")', 'red');
+    mutationTest(13, 'sheet.cssRules[2].selectorText = "foo"', 'red');
+    mutationTest(14, 'sheet.cssRules[3].insertRule("40% { left: 40px; }")', 'red');
+    mutationTest(15, 'sheet.cssRules[3].deleteRule("100%")', 'red');
+    mutationTest(16, 'sheet.cssRules[4].style.setProperty("font-family", "Bar", "")', 'red');
 
     setTimeout(finishedTests, 80);
 }
 
 function runTestsAfterLoadComplete(createCSSOMObjectBeforeTest)
 {
     var complete = true;
     for (var i = 0; i < testDocuments.length; ++i) {
         var sheet = testDocuments[i].styleSheets.length == 1 ? testDocuments[i].styleSheets[0] : null;
         if (sheet)
             testSheets[i] = sheet;
         else
             complete = false;
     }
     if (!complete) {
         setTimeout(runTestsAfterLoadComplete, 10);
         return;
     }
     executeTests(createCSSOMObjectBeforeTest);
 }
 
 function runTests(createCSSOMObjectBeforeTest)
 {
     buildTestFrames("<link rel=stylesheet href=resources/shared.css><div id=testdiv>Test</div>");
 
     runTestsAfterLoadComplete(createCSSOMObjectBeforeTest);
 }