DevTools: introduce persistence/ module

third_party/WebKit/LayoutTests/inspector/workspace-mapping-expected.txt

Index: third_party/WebKit/LayoutTests/inspector/workspace-mapping-expected.txt
diff --git a/third_party/WebKit/LayoutTests/inspector/workspace-mapping-expected.txt b/third_party/WebKit/LayoutTests/inspector/workspace-mapping-expected.txt
index 3616fb7880d527b343269ec175c622bf95eeb217..487230e91801b4f4fc50812787ec5a0edebaa61a 100644
--- a/third_party/WebKit/LayoutTests/inspector/workspace-mapping-expected.txt
+++ b/third_party/WebKit/LayoutTests/inspector/workspace-mapping-expected.txt
@@ -1,18 +1,9 @@
 Tests workspace mappings
 
-    url http://www.example.com/index.html is not mapped.
-    url http://localhost/index.html is mapped.
-    url http://localhost/foo/index.html is mapped.
-    url https://localhost/index.html is not mapped.
-
-    url http://www.example.com/index.html is mapped to null
-    url http://localhost/index.html is mapped to file:///var/www/localhost/index.html
-    url http://localhost/foo/index.html is mapped to null
-    url https://localhost/index.html is mapped to null
-
-    path file:///home/example.com / foo/index.html is mapped to null
-    path file:///home/example.com / index.html is mapped to null
-    path file:///var/www / localhost/index.html is mapped to http://localhost/index.html
-    path file:///var/www / localhost/foo/index.html is mapped to http://localhost/foo/index.html
-    path file:///home/foo / index.html is mapped to null
+uiSourceCode for url http://www.example.com/index.html: EXISTS
+uiSourceCode for url http://localhost/index.html: EXISTS
+uiSourceCode for url http://localhost/foo/index.html: EXISTS
+uiSourceCode for url https://localhost/index.html: EXISTS
+uiSourceCode for url file:///var/www/localhost/index.html: EXISTS
+uiSourceCode for url file:///var/www/localhost/index2.html: null