Use seperate expected files for fast/frames/set-parent-src-synchronously.{html,xhtml}

third_party/WebKit/LayoutTests/FlagExpectations/enable-blink-features=LayoutNG

Index: third_party/WebKit/LayoutTests/FlagExpectations/enable-blink-features=LayoutNG
diff --git a/third_party/WebKit/LayoutTests/FlagExpectations/enable-blink-features=LayoutNG b/third_party/WebKit/LayoutTests/FlagExpectations/enable-blink-features=LayoutNG
index c2771f5fefb624a9439bd9211d5109a911afe9fd..e312d4be0993d0c32d0bdc0b981ae5650c274459 100644
--- a/third_party/WebKit/LayoutTests/FlagExpectations/enable-blink-features=LayoutNG
+++ b/third_party/WebKit/LayoutTests/FlagExpectations/enable-blink-features=LayoutNG
@@ -12934,8 +12934,8 @@ crbug.com/591099 fast/frames/sandboxed-iframe-scripting-05.html [ Failure ]
 crbug.com/591099 fast/frames/sandboxed-iframe-storage.html [ Failure ]
 crbug.com/591099 fast/frames/sandboxed-iframe-workers.html [ Failure ]
 crbug.com/591099 fast/frames/set-iframe-src-in-pagehide-crash.html [ Failure ]
-crbug.com/591099 fast/frames/set-parent-src-synchronously.html [ Failure Pass ]
-crbug.com/591099 fast/frames/set-parent-src-synchronously.xhtml [ Failure Pass ]
+crbug.com/591099 fast/frames/set-parent-src-synchronously-html.html [ Failure Pass ]
+crbug.com/591099 fast/frames/set-parent-src-synchronously-xhtml.xhtml [ Failure Pass ]
 crbug.com/591099 fast/frames/srcdoc/removing-srcdoc-loads-src.html [ Crash ]
 crbug.com/591099 fast/frames/srcdoc/setting-srcdoc-reloads-document.html [ Failure ]
 crbug.com/591099 fast/frames/srcdoc/setting-src-does-nothing.html [ Failure ]