DevTools: make StyleSourceMapping in charge of managing UISourceCodes

third_party/WebKit/Source/devtools/front_end/bindings/ResourceUtils.js

 /*
  * Copyright (C) 2006, 2007, 2008 Apple Inc.  All rights reserved.
  * Copyright (C) 2007 Matt Lilek (pewtermoose@gmail.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:
  *
  * 1.  Redistributions of source code must retain the above copyright
@@ skipping 68 matching lines @@
   }
 
   if (!parsedURL)
     return url;
 
   var displayName = url.trimURL(parsedURL.host);
   return displayName === '/' ? parsedURL.host + '/' : displayName;
 };
 
 /**
+ * @param {!SDK.Target} target
+ * @param {string} frameId
+ * @param {string} url
+ * @return {?Workspace.UISourceCodeMetadata}
+ */
+Bindings.metadataForURL = function(target, frameId, url) {
+  var resourceTreeModel = target.model(SDK.ResourceTreeModel);
+  if (!resourceTreeModel)
+    return null;
+  var frame = resourceTreeModel.frameForId(frameId);
+  if (!frame)
+    return null;
+  return Bindings.resourceMetadata(frame.resourceForURL(url));
+};
+
+/**
  * @param {?SDK.Resource} resource
  * @return {?Workspace.UISourceCodeMetadata}
  */
 Bindings.resourceMetadata = function(resource) {
   if (!resource || (typeof resource.contentSize() !== 'number' && !resource.lastModified()))
     return null;
   return new Workspace.UISourceCodeMetadata(resource.lastModified(), resource.contentSize());
 };
 
 /**
  * @param {!SDK.Script} script
  * @return {string}
  */
 Bindings.frameIdForScript = function(script) {
   var executionContext = script.executionContext();
   if (executionContext)
     return executionContext.frameId || '';
   // This is to overcome compilation cache which doesn't get reset.
   var resourceTreeModel = script.debuggerModel.target().model(SDK.ResourceTreeModel);
   if (!resourceTreeModel || !resourceTreeModel.mainFrame)
     return '';
   return resourceTreeModel.mainFrame.id;
 };