DevTools: allow handing over the raw protocol connection to external clients and back.

third_party/WebKit/Source/devtools/front_end/components_lazy/LineLevelProfile.js

 // Copyright 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
  */
 WebInspector.LineLevelProfile = function()
 {
     this._locationPool = new WebInspector.LiveLocationPool();
@@ skipping 53 matching lines @@
         if (this._updateTimer)
             return;
         this._updateTimer = setTimeout(() => {
             this._updateTimer = null;
             this._doUpdate();
         }, 0);
     },
 
     _doUpdate: function()
     {
+        // TODO(alph): use scriptId instead of urls for the target.
         this._locationPool.disposeAll();
         WebInspector.workspace.uiSourceCodes().forEach(uiSourceCode => uiSourceCode.removeAllLineDecorations(WebInspector.LineLevelProfile.LineDecorator.type));
-        var debuggerModel = WebInspector.DebuggerModel.fromTarget(WebInspector.targetManager.mainTarget());
-        if (!debuggerModel)
-            return;
         for (var fileInfo of this._files) {
             var url = /** @type {string} */ (fileInfo[0]);
             var uiSourceCode = WebInspector.workspace.uiSourceCodeForURL(url);
+            if (!uiSourceCode)
+                continue;
+            var target = WebInspector.NetworkProject.targetForUISourceCode(uiSourceCode) || WebInspector.targetManager.mainTarget();
+            var debuggerModel = target ? WebInspector.DebuggerModel.fromTarget(target) : null;
+            if (!debuggerModel)
+                continue;
             for (var lineInfo of fileInfo[1]) {
                 var line = lineInfo[0] - 1;
                 var time = lineInfo[1];
                 var rawLocation = debuggerModel.createRawLocationByURL(url, line, 0);
                 if (rawLocation)
                     new WebInspector.LineLevelProfile.Presentation(rawLocation, time, this._locationPool);
                 else if (uiSourceCode)
                     uiSourceCode.addLineDecoration(line, WebInspector.LineLevelProfile.LineDecorator.type, time);
             }
         }
@@ skipping 54 matching lines @@
             var time = /** @type {number} */ (decoration.data());
             var text = WebInspector.UIString("%.1f\xa0ms", time);
             var intensity = Number.constrain(Math.log10(1 + 2 * time) / 5, 0.02, 1);
             var element = createElementWithClass("div", "text-editor-line-marker-performance");
             element.textContent = text;
             element.style.backgroundColor = `hsla(44, 100%, 50%, ${intensity.toFixed(3)})`;
             textEditor.setGutterDecoration(decoration.line(), gutterType, element);
         }
     }
 }