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, 24 insertions, 0 deletions

diff --git a/xfa/fxbarcode/oned/BC_OneDimWriter.cpp b/xfa/fxbarcode/oned/BC_OneDimWriter.cpp
index eee2893dde..109fb8f992 100644
--- a/xfa/fxbarcode/oned/BC_OneDimWriter.cpp
+++ b/xfa/fxbarcode/oned/BC_OneDimWriter.cpp
@@ -101,6 +101,13 @@ uint8_t* CBC_OneDimWriter::Encode(const CFX_ByteString& contents,
   BC_EXCEPTION_CHECK_ReturnValue(e, nullptr);
   return ret;
 }
+
+uint8_t* CBC_OneDimWriter::Encode(const CFX_ByteString& contents,
+                                  int32_t& outLength,
+                                  int32_t& e) {
+  return nullptr;
+}
+
 int32_t CBC_OneDimWriter::AppendPattern(uint8_t* target,
                                         int32_t pos,
                                         const int32_t* pattern,
@@ -123,6 +130,7 @@ int32_t CBC_OneDimWriter::AppendPattern(uint8_t* target,
   }
   return numAdded;
 }
+
 void CBC_OneDimWriter::CalcTextInfo(const CFX_ByteString& text,
                                     FXTEXT_CHARPOS* charPos,
                                     CFX_Font* cFont,
@@ -361,6 +369,7 @@ void CBC_OneDimWriter::RenderDeviceResult(CFX_RenderDevice* device,
     BC_EXCEPTION_CHECK_ReturnVoid(e);
   }
 }
+
 void CBC_OneDimWriter::RenderResult(const CFX_WideStringC& contents,
                                     uint8_t* code,
                                     int32_t codeLength,
@@ -436,3 +445,18 @@ void CBC_OneDimWriter::RenderResult(const CFX_WideStringC& contents,
     outputX += m_multiple;
   }
 }
+
+FX_BOOL CBC_OneDimWriter::CheckContentValidity(
+    const CFX_WideStringC& contents) {
+  return TRUE;
+}
+
+CFX_WideString CBC_OneDimWriter::FilterContents(
+    const CFX_WideStringC& contents) {
+  return CFX_WideString();
+}
+
+CFX_WideString CBC_OneDimWriter::RenderTextContents(
+    const CFX_WideStringC& contents) {
+  return CFX_WideString();
+}