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, 4 insertions, 0 deletions

diff --git a/xfa/fxbarcode/BC_TwoDimWriter.cpp b/xfa/fxbarcode/BC_TwoDimWriter.cpp
index fdad7e2a81..40b5519750 100644
--- a/xfa/fxbarcode/BC_TwoDimWriter.cpp
+++ b/xfa/fxbarcode/BC_TwoDimWriter.cpp
@@ -54,6 +54,10 @@ void CBC_TwoDimWriter::RenderDeviceResult(CFX_RenderDevice* device,
   }
 }
 
+int32_t CBC_TwoDimWriter::GetErrorCorrectionLevel() {
+  return m_iCorrectLevel;
+}
+
 void CBC_TwoDimWriter::RenderBitmapResult(CFX_DIBitmap*& pOutBitmap,
                                           int32_t& e) {
   if (m_bFixedSize) {