Devtools: Pretty print fix for CSS coverage decorations.

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

Index: third_party/WebKit/Source/devtools/front_end/workspace/UISourceCode.js
diff --git a/third_party/WebKit/Source/devtools/front_end/workspace/UISourceCode.js b/third_party/WebKit/Source/devtools/front_end/workspace/UISourceCode.js
index fff83b1dbd5d7b5996a6295f93f7bbae49450319..8bb4a8d4896c4ca45189ddc93e6136ff15b27679 100644
--- a/third_party/WebKit/Source/devtools/front_end/workspace/UISourceCode.js
+++ b/third_party/WebKit/Source/devtools/front_end/workspace/UISourceCode.js
@@ -60,8 +60,8 @@ Workspace.UISourceCode = class extends Common.Object {
     this._requestContentCallback = null;
     /** @type {?Promise<?string>} */
     this._requestContentPromise = null;
-    /** @type {!Map<string, !Map<number, !Workspace.UISourceCode.LineMarker>>} */
-    this._lineDecorations = new Map();
+    /** @type {!Map<string, !Map<!Common.TextRange, !Workspace.UISourceCode.LineMarker>>} */
+    this._decorations = new Map();
 
     /** @type {!Array.<!Workspace.Revision>} */
     this.history = [];
@@ -606,13 +606,22 @@ Workspace.UISourceCode = class extends Common.Object {
    * @param {?} data
    */
   addLineDecoration(lineNumber, type, data) {
-    var markers = this._lineDecorations.get(type);
+    this.addDecoration(Common.TextRange.createFromLocation(lineNumber, 0), type, data);
+  }
+
+  /**
+   * @param {!Common.TextRange} range
+   * @param {string} type
+   * @param {?} data
+   */
+  addDecoration(range, type, data) {
+    var markers = this._decorations.get(type);
     if (!markers) {
       markers = new Map();
-      this._lineDecorations.set(type, markers);
+      this._decorations.set(type, markers);
     }
-    var marker = new Workspace.UISourceCode.LineMarker(lineNumber, type, data);
-    markers.set(lineNumber, marker);
+    var marker = new Workspace.UISourceCode.LineMarker(range.startLine, type, data);
+    markers.set(range, marker);
     this.dispatchEventToListeners(Workspace.UISourceCode.Events.LineDecorationAdded, marker);
   }
 
@@ -621,37 +630,56 @@ Workspace.UISourceCode = class extends Common.Object {
    * @param {string} type
    */
   removeLineDecoration(lineNumber, type) {
-    var markers = this._lineDecorations.get(type);
+    this.removeDecoration(Common.TextRange.createFromLocation(lineNumber, 0), type);
+  }
+
+  /**
+   * @param {!Common.TextRange} range
+   * @param {string} type
+   */
+  removeDecoration(range, type) {
+    var markers = this._decorations.get(type);
     if (!markers)
       return;
-    var marker = markers.get(lineNumber);
+    var marker = markers.get(range);
     if (!marker)
       return;
-    markers.delete(lineNumber);
+    markers.delete(range);
     this.dispatchEventToListeners(Workspace.UISourceCode.Events.LineDecorationRemoved, marker);
     if (!markers.size)
-      this._lineDecorations.delete(type);
+      this._decorations.delete(type);
   }
 
   /**
    * @param {string} type
    */
   removeAllLineDecorations(type) {
-    var markers = this._lineDecorations.get(type);
+    var markers = this._decorations.get(type);
     if (!markers)
       return;
-    this._lineDecorations.delete(type);
+    this._decorations.delete(type);
     markers.forEach(marker => {
       this.dispatchEventToListeners(Workspace.UISourceCode.Events.LineDecorationRemoved, marker);
     });
   }
 
   /**
+   * @return {!Map<string, !Map<!Common.TextRange, !Workspace.UISourceCode.LineMarker>>}
+   */
+  allLineDecorations() {
+    return this._decorations;
+  }
+
+  removeAllDecorations() {
+    this._decorations.clear();
+  }
+
+  /**
    * @param {string} type
-   * @return {?Map<number, !Workspace.UISourceCode.LineMarker>}
+   * @return {?Map<!Common.TextRange, !Workspace.UISourceCode.LineMarker>}
    */
   lineDecorations(type) {
-    return this._lineDecorations.get(type) || null;
+    return this._decorations.get(type) || null;
   }
 };