Make code compile with clang_use_chrome_plugin (part III)

This change contains files in xfa/fxbarcode directory.
This is part of the efforts to make PDFium code compilable
by Clang chromium style plugins.

The changes are mainly the following:
-- move inline constructor/destructor of complex class/struct out-of-line;
-- add constructor/destructor of complex class/struct if not
 explicitly defined;
-- add explicit out-of-line copy constructor when needed;
-- move inline virtual functions out-of-line;
-- Properly mark virtual functions with 'override';
-- some minor cleanups;

BUG=pdfium:469

Review-Url: https://codereview.chromium.org/2067903002

1 files changed, 1 insertions, 0 deletions

diff --git a/xfa/fxbarcode/pdf417/BC_PDF417Detector.h b/xfa/fxbarcode/pdf417/BC_PDF417Detector.h
index c6fa6f6e7e..c7c21b2a22 100644
--- a/xfa/fxbarcode/pdf417/BC_PDF417Detector.h
+++ b/xfa/fxbarcode/pdf417/BC_PDF417Detector.h
@@ -17,6 +17,7 @@ class CBC_Detector {
  public:
   CBC_Detector();
   virtual ~CBC_Detector();
+
   static CBC_PDF417DetectorResult* detect(CBC_BinaryBitmap* image,
                                           int32_t hints,
                                           FX_BOOL multiple,