mac: Update clients of scoped_nsobject.h.

chrome/browser/ui/cocoa/location_bar/autocomplete_text_field.mm

Index: chrome/browser/ui/cocoa/location_bar/autocomplete_text_field.mm
diff --git a/chrome/browser/ui/cocoa/location_bar/autocomplete_text_field.mm b/chrome/browser/ui/cocoa/location_bar/autocomplete_text_field.mm
index fcdd14915f3f377b7c995035a27dd0a078ac6368..addda9c979e5d8ed6a322b6d8e75b7da48330304 100644
--- a/chrome/browser/ui/cocoa/location_bar/autocomplete_text_field.mm
+++ b/chrome/browser/ui/cocoa/location_bar/autocomplete_text_field.mm
@@ -449,13 +449,13 @@ void DrawInstantSuggestion(NSAttributedString* mainText,
   if (![suggestText length])
     return;
 
-  scoped_nsobject<NSTextFieldCell> cell(
+  base::scoped_nsobject<NSTextFieldCell> cell(
       [[NSTextFieldCell alloc] initTextCell:@""]);
   [cell setBordered:NO];
   [cell setDrawsBackground:NO];
   [cell setEditable:NO];
 
-  scoped_nsobject<NSMutableAttributedString> combinedText(
+  base::scoped_nsobject<NSMutableAttributedString> combinedText(
       [[NSMutableAttributedString alloc] initWithAttributedString:mainText]);
   NSRange range = NSMakeRange([combinedText length], 0);
   [combinedText replaceCharactersInRange:range withString:suggestText];