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_PDF417BoundingBox.h b/xfa/fxbarcode/pdf417/BC_PDF417BoundingBox.h
index 3ae0e107ab..69a43e0700 100644
--- a/xfa/fxbarcode/pdf417/BC_PDF417BoundingBox.h
+++ b/xfa/fxbarcode/pdf417/BC_PDF417BoundingBox.h
@@ -22,6 +22,7 @@ class CBC_BoundingBox {
                   int32_t& e);
   CBC_BoundingBox(CBC_BoundingBox* boundingBox);
   virtual ~CBC_BoundingBox();
+
   static CBC_BoundingBox* merge(CBC_BoundingBox* leftBox,
                                 CBC_BoundingBox* rightBox,
                                 int32_t& e);