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

LayoutTests/editing/deleting/smart-delete-003-expected.txt

-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 768x36
-          text run at (0,0) width 392: "This tests deleting a selection created with a word granularity. "
-          text run at (392,0) width 348: "To run it manually, double click on 'bar' and hit delete. "
-          text run at (740,0) width 28: "You"
-          text run at (0,18) width 127: "should see 'foo baz'."
-      RenderBlock {DIV} at (0,52) size 784x18
-        RenderText {#text} at (0,0) size 21x18
-          text run at (0,0) width 21: "foo"
-        RenderText {#text} at (21,0) size 26x18
-          text run at (21,0) width 26: " baz"
-caret: position 3 of child 0 {#text} of child 2 {DIV} of body
+This tests deleting a selection created with a word granularity.
+
+On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
+
+
+PASS sample.innerText is "foo baz"
+PASS getSelection().rangeCount is 1
+PASS getSelection().focusNode is sample.firstChild
+PASS getSelection().focusOffset is 4
+PASS successfullyParsed is true
+
+TEST COMPLETE
+