mac: Allow WebContents key handling to supplant extension overrides of the bookmark shortcut.

chrome/test/data/extensions/test_file_with_ctrl-d_keybinding.html

Index: chrome/test/data/extensions/test_file_with_ctrl-d_keybinding.html
diff --git a/chrome/test/data/extensions/test_file_with_ctrl-d_keybinding.html b/chrome/test/data/extensions/test_file_with_ctrl-d_keybinding.html
index f946bf0e27b62c0a2f62c523062b65c6f474850a..5fb1e1e67720f46aa03f2b2d43e59764955bf88b 100644
--- a/chrome/test/data/extensions/test_file_with_ctrl-d_keybinding.html
+++ b/chrome/test/data/extensions/test_file_with_ctrl-d_keybinding.html
@@ -2,13 +2,13 @@
   <script type="text/javascript">
 var ctrlDown = false;
 document.onkeyup = function(e) {
-  if (e.keyCode == 17)
+  if (e.keyCode == 17 || e.keyCode == 91 || e.keyCode == 93)

[Yoyo Zhou, 2014/07/15 19:46:37]

It would be nice to comment on what these values mean.

[erikchen, 2014/07/15 20:48:40]

Done.

     ctrlDown = false;
 }
 document.onkeydown = function(e) {
-  if (e.keyCode == 17)
+  if (e.keyCode == 17 || e.keyCode == 91 || e.keyCode == 93) {
     ctrlDown = true;
-  else if (String.fromCharCode(e.keyCode) == 'D' && ctrlDown) {
+  } else if (String.fromCharCode(e.keyCode) == 'D' && ctrlDown) {
     document.body.bgColor = "magenta";
     return false;
   }