DevTools: [CSS] Add CSS.setMultipleStyleTexts command to CSS domain

third_party/WebKit/LayoutTests/http/tests/inspector-protocol/css-protocol-test.js

 function initialize_cssTest()
 {
 
 InspectorTest.dumpStyleSheetText = function(styleSheetId, callback)
 {
     InspectorTest.sendCommandOrDie("CSS.getStyleSheetText", { styleSheetId: styleSheetId }, onStyleSheetText);
     function onStyleSheetText(result)
     {
         InspectorTest.log("==== Style sheet text ====");
         InspectorTest.log(result.text);
         callback();
     }
 }
 
-function updateStyleSheetRange(command, styleSheetId, expectError, options, callback)
+function modifyStyleSheet(command, presetStyleSheetId, styleSheetId, expectError, options, callback)
 {
-    options.styleSheetId = styleSheetId;
+    if (presetStyleSheetId)
+        options.styleSheetId = styleSheetId;
     if (expectError)
         InspectorTest.sendCommand(command, options, onResponse);
     else
         InspectorTest.sendCommandOrDie(command, options, onSuccess);
 
     function onSuccess()
     {
         InspectorTest.dumpStyleSheetText(styleSheetId, callback);
     }
 
     function onResponse(message)
     {
         if (!message.error) {
             InspectorTest.log("ERROR: protocol method call did not return expected error. Instead, the following message was received: " + JSON.stringify(message));
             InspectorTest.completeTest();
             return;
         }
         InspectorTest.log("Expected protocol error: " + message.error.message);
         callback();
     }
 }
 
-InspectorTest.setPropertyText = updateStyleSheetRange.bind(null, "CSS.setPropertyText");
-InspectorTest.setRuleSelector = updateStyleSheetRange.bind(null, "CSS.setRuleSelector");
-InspectorTest.setStyleText = updateStyleSheetRange.bind(null, "CSS.setStyleText");
-InspectorTest.setMediaText = updateStyleSheetRange.bind(null, "CSS.setMediaText");
-InspectorTest.addRule = updateStyleSheetRange.bind(null, "CSS.addRule");
+InspectorTest.setPropertyText = modifyStyleSheet.bind(null, "CSS.setPropertyText", true);
+InspectorTest.setRuleSelector = modifyStyleSheet.bind(null, "CSS.setRuleSelector", true);
+InspectorTest.setMediaText = modifyStyleSheet.bind(null, "CSS.setMediaText", true);
+InspectorTest.addRule = modifyStyleSheet.bind(null, "CSS.addRule", true);
+InspectorTest.setStyleTexts = function(styleSheetId, expectError, edits, callback)
+{
+    var options = { edits: edits };
+    modifyStyleSheet("CSS.setStyleTexts", false, styleSheetId, expectError, options, callback);
+}
 
 InspectorTest.requestMainFrameId = function(callback)
 {
     InspectorTest.sendCommandOrDie("Page.enable", {}, pageEnabled);
 
     function pageEnabled()
     {
         InspectorTest.sendCommandOrDie("Page.getResourceTree", {}, resourceTreeLoaded);
     }
 
@@ skipping 134 matching lines @@
     {
         if (!omitLog)
             InspectorTest.log("Dumping inline style: ");
         InspectorTest.log("{");
         InspectorTest.dumpStyle(result.inlineStyle, 0);
         InspectorTest.log("}");
         InspectorTest.loadAndDumpMatchingRulesForNode(nodeId, callback, omitLog)
     }
 }
 }