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.TargetManager.Observer}
  * @unrestricted
  */
 Bindings.CSSWorkspaceBinding = class {
   /**
    * @param {!SDK.TargetManager} targetManager
@@ skipping 129 matching lines @@
 /**
  * @unrestricted
  */
 Bindings.CSSWorkspaceBinding.TargetInfo = class {
   /**
    * @param {!SDK.CSSModel} cssModel
    * @param {!Workspace.Workspace} workspace
    */
   constructor(cssModel, workspace) {
     this._cssModel = cssModel;
+    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.LiveLocation>} */
     this._locations = new Multimap();
   }
 
   /**
    * @param {!Bindings.CSSWorkspaceBinding.LiveLocation} location
    */
   _addLocation(location) {
     var header = location._header;
@@ skipping 20 matching lines @@
    * @param {!SDK.CSSStyleSheetHeader} header
    * @param {number} lineNumber
    * @param {number=} columnNumber
    * @return {?Workspace.UILocation}
    */
   _rawLocationToUILocation(header, lineNumber, columnNumber) {
     var rawLocation = new SDK.CSSLocation(header, lineNumber, columnNumber);
     var uiLocation = null;
     uiLocation = uiLocation || this._sassSourceMapping.rawLocationToUILocation(rawLocation);
     uiLocation = uiLocation || this._stylesSourceMapping.rawLocationToUILocation(rawLocation);
-    return uiLocation;
+    if (uiLocation)
+      return uiLocation;
+
+    var uiSourceCode =

[lushnikov, 2017/02/15 05:18:48]

in future, this green chunk should be:

   uiLocation = uiLocation ||
Bindings.ResourceBinding.rawLocationToUILocation(rawLocation);

This is needed to support inline stylesheets

+        Bindings.NetworkProject.uiSourceCodeForStyleURL(this._workspace, rawLocation.url, rawLocation.header());
+    if (!uiSourceCode)
+      return null;
+    return uiSourceCode.uiLocation(rawLocation.lineNumber, rawLocation.columnNumber);
   }
 
   _dispose() {
     this._stylesSourceMapping.dispose();
     this._sassSourceMapping.dispose();
   }
 };
 
 /**
  * @unrestricted
@@ skipping 90 matching lines @@
    */
   isBlackboxed() {
     return false;
   }
 };
 
 /**
  * @type {!Bindings.CSSWorkspaceBinding}
  */
 Bindings.cssWorkspaceBinding;