Update behavior of one-click infobar to remove modal dialog, add "undo".

chrome/app/generated_resources.grd

Index: chrome/app/generated_resources.grd
diff --git a/chrome/app/generated_resources.grd b/chrome/app/generated_resources.grd
index 215534de1d8d323c38cad613976d9b0b3dc878be..839264942dc2a05e7e396c33a55180568117bda3 100644
--- a/chrome/app/generated_resources.grd
+++ b/chrome/app/generated_resources.grd
@@ -9372,6 +9372,9 @@ experiment id: "<ph name="EXPERIMENT_ID">$5<ex>ar1</ex></ph>"
       <message name="IDS_ONE_CLICK_SIGNIN_DIALOG_TITLE" desc="The title of the modal dialog window that opens when the user chooses to use one click sign in.">
         Sign in
       </message>
+      <message name="IDS_ONE_CLICK_BUBBLE_UNDO" desc="The text for the undo button in the one click signin bubble.">
+        Undo
+      </message>
       <message name="IDS_ONE_CLICK_SIGNIN_DIALOG_MESSAGE" desc="The message of the one click sign in dialog.">
         Signing in will sync your data with your Google Account so you can access your bookmarks, history, and other settings on any device.
       </message>