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, 2 insertions, 2 deletions

diff --git a/xfa/fxbarcode/common/BC_CommonCharacterSetECI.h b/xfa/fxbarcode/common/BC_CommonCharacterSetECI.h
index 5bd77e4fd1..a2fe0ed2fe 100644
--- a/xfa/fxbarcode/common/BC_CommonCharacterSetECI.h
+++ b/xfa/fxbarcode/common/BC_CommonCharacterSetECI.h
@@ -13,10 +13,10 @@
 class CBC_CommonCharacterSetECI : public CBC_CommonECI {
  public:
   CBC_CommonCharacterSetECI(int32_t value, CFX_ByteString encodingName);
-  virtual ~CBC_CommonCharacterSetECI();
+  ~CBC_CommonCharacterSetECI() override;
+
   CFX_ByteString GetEncodingName();
   static void AddCharacterSet(int32_t value, CFX_ByteString encodingName);
-  int32_t GetValue();
   static CBC_CommonCharacterSetECI* GetCharacterSetECIByValue(int32_t value);
   static CBC_CommonCharacterSetECI* GetCharacterSetECIByName(
       const CFX_ByteString& name);