Devtools: Pretty print fix for CSS coverage decorations.

third_party/WebKit/Source/devtools/front_end/workspace/UISourceCode.js

 /*
  * Copyright (C) 2011 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 42 matching lines @@
       this._origin = '';
       this._parentURL = '';
       this._name = url;
     }
 
     this._contentType = contentType;
     /** @type {?function(?string)} */
     this._requestContentCallback = null;
     /** @type {?Promise<?string>} */
     this._requestContentPromise = null;
-    /** @type {!Map<string, !Map<number, !WebInspector.UISourceCode.LineMarker>>} */
-    this._lineDecorations = new Map();
+
+    /** @type {!Multimap<string, !WebInspector.UISourceCode.LineMarker>} */
+    this._typeDecorations = new Multimap();
+    /** @type {!Multimap<number, !WebInspector.UISourceCode.LineMarker>} */
+    this._lineDecorations = new Multimap();
 
     /** @type {!Array.<!WebInspector.Revision>} */
     this.history = [];
 
     /** @type {!Array<!WebInspector.UISourceCode.Message>} */
     this._messages = [];
   }
 
   /**
    * @return {!Promise<?WebInspector.UISourceCodeMetadata>}
@@ skipping 524 matching lines @@
     for (var message of messages)
       this.dispatchEventToListeners(WebInspector.UISourceCode.Events.MessageRemoved, message);
   }
 
   /**
    * @param {number} lineNumber
    * @param {string} type
    * @param {?} data
    */
   addLineDecoration(lineNumber, type, data) {
-    var markers = this._lineDecorations.get(type);
-    if (!markers) {
-      markers = new Map();
-      this._lineDecorations.set(type, markers);
-    }
+
     var marker = new WebInspector.UISourceCode.LineMarker(lineNumber, type, data);
-    markers.set(lineNumber, marker);
+
+    this._typeDecorations.set(type, marker);
+    this._lineDecorations.set(lineNumber, marker);
+
     this.dispatchEventToListeners(WebInspector.UISourceCode.Events.LineDecorationAdded, marker);
   }
 
   /**
    * @param {number} lineNumber
    * @param {string} type
    */
   removeLineDecoration(lineNumber, type) {
-    var markers = this._lineDecorations.get(type);
+    var markers = this._lineDecorations.get(lineNumber);
     if (!markers)
       return;
-    var marker = markers.get(lineNumber);
-    if (!marker)
-      return;
-    markers.delete(lineNumber);
-    this.dispatchEventToListeners(WebInspector.UISourceCode.Events.LineDecorationRemoved, marker);
-    if (!markers.size)
-      this._lineDecorations.delete(type);
+
+    for (var decoration of markers) {
+      if (decoration.type() === type) {
+
+        this._typeDecorations.remove(type, decoration);
+
+        this._lineDecorations.remove(lineNumber, decoration);
+        this.dispatchEventToListeners(WebInspector.UISourceCode.Events.LineDecorationRemoved, decoration);
+      }
+    }
   }
 
   /**
    * @param {string} type
    */
   removeAllLineDecorations(type) {
-    var markers = this._lineDecorations.get(type);
+    var markers = this._typeDecorations.get(type);
     if (!markers)
       return;
-    this._lineDecorations.delete(type);
+
+    markers.forEach(marker => this._lineDecorations.remove(marker.line(), marker));
+    this._typeDecorations.removeAll(type);
+
     markers.forEach(marker => {
       this.dispatchEventToListeners(WebInspector.UISourceCode.Events.LineDecorationRemoved, marker);
     });
   }
 
   /**
    * @param {string} type
-   * @return {?Map<number, !WebInspector.UISourceCode.LineMarker>}
+   * @return {?Set<!WebInspector.UISourceCode.LineMarker>}
    */
   lineDecorations(type) {
-    return this._lineDecorations.get(type) || null;
+    return this._typeDecorations.get(type) || null;
   }
 };
 
 /** @enum {symbol} */
 WebInspector.UISourceCode.Events = {
   WorkingCopyChanged: Symbol('WorkingCopyChanged'),
   WorkingCopyCommitted: Symbol('WorkingCopyCommitted'),
   TitleChanged: Symbol('TitleChanged'),
   SourceMappingChanged: Symbol('SourceMappingChanged'),
   MessageAdded: Symbol('MessageAdded'),
@@ skipping 277 matching lines @@
 WebInspector.UISourceCodeMetadata = class {
   /**
    * @param {?Date} modificationTime
    * @param {?number} contentSize
    */
   constructor(modificationTime, contentSize) {
     this.modificationTime = modificationTime;
     this.contentSize = contentSize;
   }
 };