DevTools: make StylesSourceMapping in charge of creating and removing UISourceCodes

third_party/WebKit/Source/devtools/front_end/bindings/CSSWorkspaceBinding.js

 // Copyright 2014 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.
 
 /**
  * @implements {SDK.SDKModelObserver<!SDK.CSSModel>}
  */
 Bindings.CSSWorkspaceBinding = class {
   /**
    * @param {!SDK.TargetManager} targetManager
@@ skipping 80 matching lines @@
   /**
    * @param {!SDK.CSSModel} cssModel
    * @param {!Workspace.Workspace} workspace
    */
   constructor(cssModel, workspace) {
     this._eventListeners = [
       cssModel.addEventListener(SDK.CSSModel.Events.StyleSheetAdded, this._styleSheetAdded, this),
       cssModel.addEventListener(SDK.CSSModel.Events.StyleSheetRemoved, this._styleSheetRemoved, this)
     ];
 
+    this._workspace = workspace;
+    var networkProject = Bindings.NetworkProject.forTarget(cssModel.target());
     this._stylesSourceMapping = new Bindings.StylesSourceMapping(cssModel, workspace);
-    this._sassSourceMapping =
-        new Bindings.SASSSourceMapping(cssModel, workspace, Bindings.NetworkProject.forTarget(cssModel.target()));
+    this._sassSourceMapping = new Bindings.SASSSourceMapping(cssModel, workspace, networkProject);
 
     /** @type {!Multimap<!SDK.CSSStyleSheetHeader, !Bindings.CSSWorkspaceBinding.LiveLocation>} */
     this._locations = new Multimap();
     /** @type {!Multimap<string, !Bindings.CSSWorkspaceBinding.LiveLocation>} */
     this._unboundLocations = new Multimap();
   }
 
   /**
    * @param {!SDK.CSSLocation} rawLocation
    * @param {function(!Bindings.LiveLocation)} updateDelegate
@@ skipping 61 matching lines @@
   }
 
   /**
    * @param {!SDK.CSSLocation} rawLocation
    * @return {?Workspace.UILocation}
    */
   _rawLocationToUILocation(rawLocation) {
     var uiLocation = null;
     uiLocation = uiLocation || this._sassSourceMapping.rawLocationToUILocation(rawLocation);
     uiLocation = uiLocation || this._stylesSourceMapping.rawLocationToUILocation(rawLocation);
-    return uiLocation;
+    if (uiLocation)
+      return uiLocation;
+
+    var header = rawLocation.header();
+    if (!header)
+      return null;
+    var uiSourceCode = Bindings.NetworkProject.uiSourceCodeForStyleURL(this._workspace, rawLocation.url, header);
+    if (!uiSourceCode)
+      return null;
+    return uiSourceCode.uiLocation(rawLocation.lineNumber, rawLocation.columnNumber);
   }
 
   _dispose() {
     Common.EventTarget.removeEventListeners(this._eventListeners);
     this._stylesSourceMapping.dispose();
     this._sassSourceMapping.dispose();
   }
 };
 
 /**
@@ skipping 40 matching lines @@
    */
   isBlackboxed() {
     return false;
   }
 };
 
 /**
  * @type {!Bindings.CSSWorkspaceBinding}
  */
 Bindings.cssWorkspaceBinding;