Use mock temp file in profiler tests

LayoutTests/inspector/profiler/heap-snapshot-loader.html

Index: LayoutTests/inspector/profiler/heap-snapshot-loader.html
diff --git a/LayoutTests/inspector/profiler/heap-snapshot-loader.html b/LayoutTests/inspector/profiler/heap-snapshot-loader.html
index 8774d994c2805bea484a7df595386c270bd37b43..31533880e169b2b9cde49d1a28b878365d63f96f 100644
--- a/LayoutTests/inspector/profiler/heap-snapshot-loader.html
+++ b/LayoutTests/inspector/profiler/heap-snapshot-loader.html
@@ -58,24 +58,6 @@ function test()
     }
 
     InspectorTest.runTestSuite([
-        function clearHeapProfilerTempStorage(next)
-        {
-            function didFail(e)
-            {
-                InspectorTest.addResult("FAIL: " + e);
-                InspectorTest.completeTest();
-            }
-            function didGetFS(fs)
-            {
-                fs.root.getDirectory("heap-profiler", { create: false }, didGetDir, next);
-            }
-            function didGetDir(dir)
-            {
-                dir.removeRecursively(next, didFail);
-            }
-            window.webkitRequestFileSystem(window.TEMPORARY, 10, didGetFS, didFail);
-        },
-
         function heapSnapshotLoaderTest(next)
         {
             var loader = new WebInspector.HeapSnapshotLoader();