[DevTools] Make resource tree model optional

third_party/WebKit/Source/devtools/front_end/components/DOMPresentationUtils.js

 /*
  * Copyright (C) 2011 Google Inc.  All rights reserved.
  * Copyright (C) 2007, 2008 Apple Inc.  All rights reserved.
  * Copyright (C) 2008 Matt Lilek <webkit@mattlilek.com>
  * Copyright (C) 2009 Joseph Pecoraro
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
@@ skipping 133 matching lines @@
      */
     function onDeferredNodeResolved(node)
     {
         WebInspector.Revealer.reveal(node);
     }
 
     return root;
 }
 
 /**
- * @param {!WebInspector.Target} target
+ * @param {!WebInspector.ResourceTreeModel} resourceTreeModel
  * @param {string} originalImageURL
  * @param {boolean} showDimensions
  * @param {function(!Element=)} userCallback
  * @param {!Object=} precomputedFeatures
  */
-WebInspector.DOMPresentationUtils.buildImagePreviewContents = function(target, originalImageURL, showDimensions, userCallback, precomputedFeatures)
+WebInspector.DOMPresentationUtils.buildImagePreviewContents = function(resourceTreeModel, originalImageURL, showDimensions, userCallback, precomputedFeatures)

[pfeldman, 2016/07/13 23:55:57]

ditto, DOM can easily function without the resource tree model. We need a way of
completing URLs that would be abstract from resource tree model.

[eostroukhov-old, 2016/07/20 23:46:15]

I'd like to ignore DOM dependency on a Network for now - breaking it seems to be
a separate and fairly large task.

 {
-    var resource = target.resourceTreeModel.resourceForURL(originalImageURL);
+    var resource = resourceTreeModel.resourceForURL(originalImageURL);
     var imageURL = originalImageURL;
     if (!isImageResource(resource) && precomputedFeatures && precomputedFeatures.currentSrc) {
         imageURL = precomputedFeatures.currentSrc;
-        resource = target.resourceTreeModel.resourceForURL(imageURL);
+        resource = resourceTreeModel.resourceForURL(imageURL);
     }
     if (!isImageResource(resource)) {
         userCallback();
         return;
     }
 
     var imageElement = createElement("img");
     imageElement.addEventListener("load", buildContent, false);
     imageElement.addEventListener("error", errorCallback, false);
     resource.populateImageSource(imageElement);
@@ skipping 476 matching lines @@
     /**
      * @override
      * @param {!WebInspector.DOMNode} node
      * @return {?{title: string, color: string}}
      */
     decorate: function(node)
     {
         return { title: this._title, color: this._color };
     }
 }