Remove -webkit-line-box-contain implementation.

LayoutTests/platform/mac/fast/block/lineboxcontain/glyphs-expected.txt

Index: LayoutTests/platform/mac/fast/block/lineboxcontain/glyphs-expected.txt
diff --git a/LayoutTests/platform/mac/fast/block/lineboxcontain/glyphs-expected.txt b/LayoutTests/platform/mac/fast/block/lineboxcontain/glyphs-expected.txt
deleted file mode 100644
index f370c71131f8dcca1db8c3404ea25a877d662a62..0000000000000000000000000000000000000000
--- a/LayoutTests/platform/mac/fast/block/lineboxcontain/glyphs-expected.txt
+++ /dev/null
@@ -1,37 +0,0 @@
-layer at (0,0) size 800x600
-  LayoutView at (0,0) size 800x600
-layer at (0,0) size 800x275
-  LayoutBlockFlow {HTML} at (0,0) size 800x275
-    LayoutBlockFlow {BODY} at (8,8) size 784x251
-      LayoutBlockFlow (anonymous) at (0,0) size 784x18
-        LayoutText {#text} at (0,0) size 502x18
-          text run at (0,0) width 264: "You should see a green rectangle below. "
-          text run at (263,0) width 239: "If you see any red, the test has failed."
-        LayoutText {#text} at (0,0) size 0x0
-      LayoutBlockFlow {P} at (0,164) size 784x17 [border: (1px solid #000000)]
-        LayoutText {#text} at (1,-2) size 280x18
-          text run at (1,-2) width 280: "this block should hug the lowercase glyphs."
-      LayoutBlockFlow {P} at (0,197) size 784x54
-        LayoutBlockFlow (floating) {<pseudo:first-letter>} at (0,0) size 22x24
-          LayoutTextFragment (anonymous) at (0,-8) size 22x41
-            text run at (0,-8) width 22: "T"
-        LayoutTextFragment {#text} at (24,0) size 419x18
-          text run at (24,0) width 419: "he first letter here should look nicer because it uses glyph bounds"
-        LayoutBR {BR} at (442,0) size 1x18
-        LayoutText {#text} at (24,18) size 524x18
-          text run at (24,18) width 524: "This should make the top of the T line up with the line and not look shifted down."
-        LayoutBR {BR} at (547,18) size 1x18
-        LayoutText {#text} at (0,36) size 462x18
-          text run at (0,36) width 462: "Maybe we should do this by default for all first letters like Firefox does."
-layer at (8,26) size 384x130
-  LayoutBlockFlow {DIV} at (0,18) size 384x130 [bgcolor=#FF0000]
-    LayoutInline {SPAN} at (0,0) size 320x65 [color=#008000] [border: (1px solid #008000) none]
-      LayoutText {#text} at (0,1) size 320x64
-        text run at (0,1) width 320: "xxxxx"
-    LayoutInline {SPAN} at (0,0) size 64x128 [bgcolor=#008000]
-    LayoutBR {BR} at (384,1) size 0x64
-    LayoutBlockFlow {DIV} at (0,2) size 64x128 [bgcolor=#008000]
-    LayoutInline {SPAN} at (0,0) size 320x65 [color=#008000] [border: (1px solid #008000) none]
-      LayoutText {#text} at (64,66) size 320x64
-        text run at (64,66) width 320: "xxxxx"
-    LayoutText {#text} at (0,0) size 0x0