DevTools: prepare Navigator and Network Project for merging uiSourceCodes

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

Index: third_party/WebKit/Source/devtools/front_end/bindings/ResourceUtils.js
diff --git a/third_party/WebKit/Source/devtools/front_end/bindings/ResourceUtils.js b/third_party/WebKit/Source/devtools/front_end/bindings/ResourceUtils.js
index dec3afbe0bf96e1ce5ee45bb8fe9e425cd37c900..bd9ff59fb95caf5ad35c1aaa7df5762a5f1497a6 100644
--- a/third_party/WebKit/Source/devtools/front_end/bindings/ResourceUtils.js
+++ b/third_party/WebKit/Source/devtools/front_end/bindings/ResourceUtils.js
@@ -84,3 +84,13 @@ Bindings.displayNameForURL = function(url) {
   var displayName = url.trimURL(parsedURL.host);
   return displayName === '/' ? parsedURL.host + '/' : displayName;
 };
+
+/**
+ * @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());
+};