Convert two pixel tests, editing/deleting/smart-delete-00{3,4}.html to JS test.

LayoutTests/platform/win/editing/deleting/smart-delete-004-expected.txt

Index: LayoutTests/platform/win/editing/deleting/smart-delete-004-expected.txt
diff --git a/LayoutTests/platform/win/editing/deleting/smart-delete-004-expected.txt b/LayoutTests/platform/win/editing/deleting/smart-delete-004-expected.txt
deleted file mode 100644
index f55962dfcdfc5bb44eb5d57c3feed0e2890c4af1..0000000000000000000000000000000000000000
--- a/LayoutTests/platform/win/editing/deleting/smart-delete-004-expected.txt
+++ /dev/null
@@ -1,22 +0,0 @@
-EDITING DELEGATE: webViewDidChangeSelection:WebViewDidChangeSelectionNotification
-EDITING DELEGATE: webViewDidChangeSelection:WebViewDidChangeSelectionNotification
-EDITING DELEGATE: webViewDidChangeSelection:WebViewDidChangeSelectionNotification
-EDITING DELEGATE: webViewDidChangeSelection:WebViewDidChangeSelectionNotification
-EDITING DELEGATE: webViewDidChange:WebViewDidChangeNotification
-layer at (0,0) size 800x600
-  RenderView at (0,0) size 800x600
-layer at (0,0) size 800x600
-  RenderBlock {HTML} at (0,0) size 800x600
-    RenderBody {BODY} at (8,8) size 784x584
-      RenderBlock {P} at (0,0) size 784x36
-        RenderText {#text} at (0,0) size 761x35
-          text run at (0,0) width 402: "This tests deleting a selection created with a word granularity. "
-          text run at (401,0) width 360: "To run it manually, double click on 'bar' and hit forward"
-          text run at (0,18) width 47: "delete. "
-          text run at (46,18) width 161: "You should see 'foo baz'."
-      RenderBlock {DIV} at (0,52) size 784x18
-        RenderText {#text} at (0,0) size 26x17
-          text run at (0,0) width 26: "foo "
-        RenderText {#text} at (25,0) size 23x17
-          text run at (25,0) width 23: "baz"
-caret: position 4 of child 0 {#text} of child 2 {DIV} of body