Import WPT tests which require non-test HTML resources.

third_party/WebKit/LayoutTests/SlowTests

Index: third_party/WebKit/LayoutTests/SlowTests
diff --git a/third_party/WebKit/LayoutTests/SlowTests b/third_party/WebKit/LayoutTests/SlowTests
index 95cadd62d03764b2d2baccc157942dfe9f6b330b..fc36ab208ea1f5675f48759989803729d60e8620 100644
--- a/third_party/WebKit/LayoutTests/SlowTests
+++ b/third_party/WebKit/LayoutTests/SlowTests
@@ -191,11 +191,16 @@ crbug.com/490511 imported/wpt/html/syntax/parsing/html5lib_tests19.html [ Slow ]
 crbug.com/490511 imported/wpt/html/syntax/parsing/html5lib_tests2.html [ Slow ]
 crbug.com/490511 imported/wpt/html/syntax/parsing/html5lib_tests20.html [ Slow ]
 
+crbug.com/490939 imported/wpt/dom/ranges/Range-cloneContents.html [ Slow ]
 crbug.com/490939 imported/wpt/dom/ranges/Range-compareBoundaryPoints.html [ Slow ]
 crbug.com/490939 imported/wpt/dom/ranges/Range-comparePoint.html [ Slow ]
+crbug.com/490939 imported/wpt/dom/ranges/Range-deleteContents.html [ Slow ]
+crbug.com/490939 imported/wpt/dom/ranges/Range-extractContents.html [ Slow ]
+crbug.com/490939 imported/wpt/dom/ranges/Range-insertNode.html [ Slow ]
 crbug.com/490939 imported/wpt/dom/ranges/Range-isPointInRange.html [ Slow ]
 crbug.com/490939 imported/wpt/dom/ranges/Range-mutations-dataChange.html [ Slow ]
 crbug.com/490939 imported/wpt/dom/ranges/Range-set.html [ Slow ]
+crbug.com/490939 imported/wpt/dom/ranges/Range-surroundContents.html [ Slow ]
 crbug.com/490939 imported/wpt/html/dom/reflection-embedded.html [ Slow ]
 crbug.com/490939 imported/wpt/html/dom/reflection-forms.html [ Slow ]
 crbug.com/490939 imported/wpt/html/dom/reflection-grouping.html [ Slow ]