fix link context menus

    http://b/issue?id=3351385
    http://b/issue?id=3352255

    remove bookmark/share link option
    change open in new tab text based on open in background setting

Change-Id: I3930d085339a7f829d8ef4f1afc879b4df743f24
diff --git a/res/values/strings.xml b/res/values/strings.xml
index 09bd56d..5452b63 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -248,15 +248,12 @@
     <!-- Context Menu item to open the currently selected link in a new
             window. -->
     <string name="contextmenu_openlink_newwindow">Open in new window</string>
-    <!-- Context Menu item to create a bookmark for the url of the currently
-            selected link. -->
-    <string name="contextmenu_bookmark_thislink">Bookmark link</string>
+    <!-- Context Menu item to open the currently selected link in a new
+         background window. [CHAR LIMIT=50] -->
+    <string name="contextmenu_openlink_newwindow_background">Open in new background window</string>
     <!-- Context Menu item to save the webpage referred to by this link to the
             SD card (external storage) -->
     <string name="contextmenu_savelink">Save link</string>
-    <!-- Context Menu item to send the url of the selected link to someone else,
-            via Gmail or another app -->
-    <string name="contextmenu_sharelink">Share link</string>
     <!-- Context Menu item -->
     <string name="contextmenu_copy">Copy</string>
     <!-- Context Menu item to copy the url of the selected link to the