Fix typo in printing.gyp

printing/printing.gyp

Index: printing/printing.gyp
diff --git a/printing/printing.gyp b/printing/printing.gyp
index 8fc63dc35f4ac61659922df201ae5443712d5f74..3c43ce9837612fb5c7f104257391a36a19ac3b25 100644
--- a/printing/printing.gyp
+++ b/printing/printing.gyp
@@ -167,12 +167,19 @@
                 ],
               },
             }],
+          ],
+          'defines': [
+            # PRINT_BACKEND_AVAILABLE disables the default dummy implementation
+            # of the print backend and enables a custom implementation instead.
+            'PRINT_BACKEND_AVAILABLE',
+          ],
+          'conditions': [
             ['chromeos==1', {
               'sources': [
                 'backend/cups_connection.cc',
                 'backend/cups_connection.h',
-                'backend/cups_deleter.cc',
-                'backend/cups_deleter.h',
+                'backend/cups_deleters.cc',
+                'backend/cups_deleters.h',
                 'backend/cups_ipp_util.cc',
                 'backend/cups_ipp_util.h',
                 'backend/cups_printer.cc',
@@ -188,11 +195,6 @@
               ],
             }],
           ],
-          'defines': [
-            # PRINT_BACKEND_AVAILABLE disables the default dummy implementation
-            # of the print backend and enables a custom implementation instead.
-            'PRINT_BACKEND_AVAILABLE',
-          ],
         }],
         ['OS=="linux" and chromeos==1', {
           'defines': [