Rename 'composed tree' to 'flat tree' in the layout tests.

third_party/WebKit/LayoutTests/fast/dom/shadow/composed-shadow-tree-walker-shadow-reprojection-expected.txt

Index: third_party/WebKit/LayoutTests/fast/dom/shadow/composed-shadow-tree-walker-shadow-reprojection-expected.txt
diff --git a/third_party/WebKit/LayoutTests/fast/dom/shadow/composed-shadow-tree-walker-shadow-reprojection-expected.txt b/third_party/WebKit/LayoutTests/fast/dom/shadow/composed-shadow-tree-walker-shadow-reprojection-expected.txt
deleted file mode 100644
index 3786af66fbbe0b153a97b8037ac2488d8b3a446d..0000000000000000000000000000000000000000
--- a/third_party/WebKit/LayoutTests/fast/dom/shadow/composed-shadow-tree-walker-shadow-reprojection-expected.txt
+++ /dev/null
@@ -1,181 +0,0 @@
-CONSOLE WARNING: Calling Element.createShadowRoot() for an element which already hosts a shadow root is deprecated. See https://www.chromestatus.com/features/4668884095336448 for more details.
-Tests for Composed Shadow DOM Tree Traversal APIs. Can only run within DRT
-
-On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
-
-
-Multiple shadow root without shadow element
-Composed Shadow Tree:
-#a
-	#c
-
-Traverse in forward.
-#a
-#c
-Traverse in backward.
-#c
-#a
-
-Multiple shadow root with shadow element
-Composed Shadow Tree:
-#a
-	#c
-	#b
-	#e
-
-Traverse in forward.
-#a
-#c
-#b
-#e
-Traverse in backward.
-#e
-#b
-#c
-#a
-
-Multiple shadow root with shadow element, case 2
-Composed Shadow Tree:
-#a
-	#f
-	#c
-	#b
-	#e
-	#h
-
-Traverse in forward.
-#a
-#f
-#c
-#b
-#e
-#h
-Traverse in backward.
-#h
-#e
-#b
-#c
-#f
-#a
-
-shadow reprojection
-Composed Shadow Tree:
-#a
-	#b
-		#d
-		#a-child
-		#f
-
-Traverse in forward.
-#a
-#b
-#d
-#a-child
-#f
-Traverse in backward.
-#f
-#a-child
-#d
-#b
-#a
-
-shadow reprojection, take 2
-Composed Shadow Tree:
-#a
-	#d
-		#f
-		#b
-		#h
-
-Traverse in forward.
-#a
-#d
-#f
-#b
-#h
-Traverse in backward.
-#h
-#b
-#f
-#d
-#a
-
-Ignore shadow fallback elements
-Composed Shadow Tree:
-#a
-	#i
-		#k
-		#c
-		#b
-		#f
-			#g
-		#h
-		#m
-
-Traverse in forward.
-#a
-#i
-#k
-#c
-#b
-#f
-#g
-#h
-#m
-Traverse in backward.
-#m
-#h
-#g
-#f
-#b
-#c
-#k
-#i
-#a
-
-with inactive insertion points
-Composed Shadow Tree:
-#a
-	#s
-		#u
-		#f
-		#b
-			#c
-		#d
-			#e
-		#l
-		#m
-		#n
-		#w
-
-Traverse in forward.
-#a
-#s
-#u
-#f
-#b
-#c
-#d
-#e
-#l
-#m
-#n
-#w
-Traverse in backward.
-#w
-#n
-#m
-#l
-#e
-#d
-#c
-#b
-#f
-#u
-#s
-#a
-
-PASS successfullyParsed is true
-
-TEST COMPLETE
-