[css-ui] Add support for caret-color property

third_party/WebKit/LayoutTests/platform/mac/editing/caret/caret-color-004-expected.txt

Index: third_party/WebKit/LayoutTests/platform/mac/editing/caret/caret-color-004-expected.txt
diff --git a/third_party/WebKit/LayoutTests/platform/mac/editing/caret/caret-color-004-expected.txt b/third_party/WebKit/LayoutTests/platform/mac/editing/caret/caret-color-004-expected.txt
new file mode 100644
index 0000000000000000000000000000000000000000..e044a5060ab15a9df8e68dbc551e2742802701d9
--- /dev/null
+++ b/third_party/WebKit/LayoutTests/platform/mac/editing/caret/caret-color-004-expected.txt
@@ -0,0 +1,19 @@
+layer at (0,0) size 800x600
+  LayoutView at (0,0) size 800x600
+layer at (0,0) size 800x248
+  LayoutBlockFlow {HTML} at (0,0) size 800x248
+    LayoutBlockFlow {BODY} at (8,16) size 784x224
+      LayoutBlockFlow {P} at (0,0) size 784x36
+        LayoutText {#text} at (0,0) size 766x36
+          text run at (0,0) width 641: "Test passes if, when the text area below is focused for editing, the text insertion caret is either black "
+          text run at (640,0) width 126: "or some other color"
+          text run at (0,18) width 256: "that contrasts well with the background."
+      LayoutBlockFlow {P} at (0,52) size 784x18
+        LayoutText {#text} at (0,0) size 441x18
+          text run at (0,0) width 441: "The shape of the caret, and whether it flashes, are not part of the test."
+      LayoutBlockFlow (anonymous) at (0,86) size 784x138
+        LayoutText {#text} at (0,0) size 0x0
+layer at (8,102) size 502x134 clip at (9,103) size 500x132
+  LayoutTextControl {TEXTAREA} at (0,0) size 502x134 [bgcolor=#FFFFFF] [border: (1px solid #000000)]
+    LayoutBlockFlow {DIV} at (11,11) size 480x56
+caret: position 0 of child 0 {DIV} of {#document-fragment} of child 5 {TEXTAREA} of body