Fixing whitespace lint errors.

core/src/fxcodec/lbmp/fx_bmp.cpp

 // Copyright 2014 PDFium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
 #include "core/src/fxcodec/lbmp/fx_bmp.h"
 
 #include <algorithm>
 
@@ skipping 937 matching lines @@
 #ifdef BMP_SUPPORT_BITFIELD
       _bmp_encode_bitfields(bmp_ptr, dst_buf, dst_size);
 #endif
       break;
     case BMP_RLE8:
       _bmp_encode_rle8(bmp_ptr, dst_buf, dst_size);
       break;
     case BMP_RLE4:
       _bmp_encode_rle4(bmp_ptr, dst_buf, dst_size);
       break;
-    default:;
+    default:
+      break;
   }
   bmp_ptr->file_header.bfSize = dst_size;
   WriteFileHeader(&bmp_ptr->file_header, dst_buf);
   return TRUE;
 }