Change keys and update wording for find wrapped strings.

l10n/en-US/viewer.properties

@@ -78,8 +78,8 @@ find_next.title=Find the next occurrence of the phrase
 find_next_label=Next
 find_highlight=Highlight all
 find_match_case_label=Match case
-find_wrapped_to_bottom=Reached top of page, continued from bottom
-find_wrapped_to_top=Reached end of page, continued from top
+find_reached_top=Reached top of document, continued from bottom
+find_reached_bottom=Reached end of document, continued from top
 find_not_found=Phrase not found
 
 # Error panel labels

web/viewer.js

@@ -624,11 +624,11 @@ var PDFFindBar = {
 
       case FindStates.FIND_WRAPPED:
         if (previous) {
-          findMsg = mozL10n.get('find_wrapped_to_bottom', null,
-                                'Reached top of page, continued from bottom');
+          findMsg = mozL10n.get('find_reached_top', null,
+                      'Reached top of document, continued from bottom');
         } else {
-          findMsg = mozL10n.get('find_wrapped_to_top', null,
-                                'Reached end of page, continued from top');
+          findMsg = mozL10n.get('find_reached_bottom', null,
+                                'Reached end of document, continued from top');
         }
         break;
     }