DevTools: make StyleSourceMapping in charge of managing 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 006a493f5c201934674148ef7ed4418e99d1a510..3e465e30f4f1faf19eea7d362709d378cfb9f71b 100644
--- a/third_party/WebKit/Source/devtools/front_end/bindings/ResourceUtils.js
+++ b/third_party/WebKit/Source/devtools/front_end/bindings/ResourceUtils.js
@@ -85,6 +85,22 @@ Bindings.displayNameForURL = function(url) {
   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}