[DevTools] Migrate usages of Target to RuntimeModel where makes sense

third_party/WebKit/Source/devtools/front_end/timeline/TimelineUIUtils.js

Index: third_party/WebKit/Source/devtools/front_end/timeline/TimelineUIUtils.js
diff --git a/third_party/WebKit/Source/devtools/front_end/timeline/TimelineUIUtils.js b/third_party/WebKit/Source/devtools/front_end/timeline/TimelineUIUtils.js
index ff89a85b20e6070aeaf8ea0c07226141f2a7fb92..614b50997494af98739f689e5915f0946cbf70a6 100644
--- a/third_party/WebKit/Source/devtools/front_end/timeline/TimelineUIUtils.js
+++ b/third_party/WebKit/Source/devtools/front_end/timeline/TimelineUIUtils.js
@@ -551,7 +551,7 @@ Timeline.TimelineUIUtils = class {
      * @return {?string}
      */
     function linkifyLocationAsText(scriptId, lineNumber, columnNumber) {
-      var debuggerModel = SDK.DebuggerModel.fromTarget(target);
+      var debuggerModel = target ? target.model(SDK.DebuggerModel) : null;
       if (!target || target.isDisposed() || !scriptId || !debuggerModel)
         return null;
       var rawLocation = debuggerModel.createRawLocationByScriptId(scriptId, lineNumber, columnNumber);