DevTools: Create TextEditor Interface around CodeMirrorTextEditor

third_party/WebKit/Source/devtools/front_end/source_frame/SourcesTextEditor.js

 // Copyright (c) 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 /**
  * @constructor
  * @extends {WebInspector.CodeMirrorTextEditor}
  * @param {!WebInspector.SourcesTextEditorDelegate} delegate
  */
 WebInspector.SourcesTextEditor = function(delegate)
 {
-    WebInspector.CodeMirrorTextEditor.call(this);
+    WebInspector.CodeMirrorTextEditor.call(this, {
+        lineNumbers: true,
+        lineWrapping: false,
+        bracketMatchingSetting: WebInspector.moduleSetting("textEditorBracketMatching"),
+    });
 
     this.codeMirror().addKeyMap({
         "Enter": "smartNewlineAndIndent",
         "Esc": "sourcesDismiss"
     });
 
     this._delegate = delegate;
 
     this.codeMirror().on("changes", this._changesForDelegate.bind(this));
     this.codeMirror().on("cursorActivity", this._cursorActivity.bind(this));
     this.codeMirror().on("gutterClick", this._gutterClick.bind(this));
     this.codeMirror().on("scroll", this._scroll.bind(this));
     this.codeMirror().on("focus", this._focus.bind(this));
     this.codeMirror().on("beforeSelectionChange", this._beforeSelectionChangeForDelegate.bind(this));
     this.element.addEventListener("contextmenu", this._contextMenu.bind(this), false);
 
     this._blockIndentController = new WebInspector.SourcesTextEditor.BlockIndentController(this.codeMirror());
     this._tokenHighlighter = new WebInspector.SourcesTextEditor.TokenHighlighter(this, this.codeMirror());
 
     /** @type {!Array<string>} */
     this._gutters = ["CodeMirror-linenumbers"];
+    this.codeMirror().setOption("gutters", this._gutters.slice());
 
     /**
      * @this {WebInspector.SourcesTextEditor}
      */
     function updateAnticipateJumpFlag(value)
     {
         this._isHandlingMouseDownEvent = value;
     }
 
     this.element.addEventListener("mousedown", updateAnticipateJumpFlag.bind(this, true), true);
@@ skipping 928 matching lines @@
         this._codeMirror.addOverlay(overlayMode);
         this._highlightDescriptor = {
             overlay: overlayMode,
             selectionStart: selectionStart
         };
     }
 }
 
 WebInspector.SourcesTextEditor.LinesToScanForIndentationGuessing = 1000;
 WebInspector.SourcesTextEditor.MaximumNumberOfWhitespacesPerSingleSpan = 16;