Make CBC_CodeBase::SetTextLocation() virtual.

Do the same for a few other CBC_CodeBase methods, instead of trying to
implement virtual methods manually using memory pointers.

Change-Id: Iec0e3a4f8eabc54962c7ac0a00a1b80b192ff474
Reviewed-on: https://pdfium-review.googlesource.com/42600
Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>

1 files changed, 20 insertions, 0 deletions

diff --git a/fxbarcode/cbc_codebase.cpp b/fxbarcode/cbc_codebase.cpp
index 2278f931e8..b723f551d5 100644
--- a/fxbarcode/cbc_codebase.cpp
+++ b/fxbarcode/cbc_codebase.cpp
@@ -30,6 +30,26 @@ CBC_CodeBase::CBC_CodeBase(std::unique_ptr<CBC_Writer> pWriter)
 
 CBC_CodeBase::~CBC_CodeBase() {}
 
+bool CBC_CodeBase::SetTextLocation(BC_TEXT_LOC location) {
+  return false;
+}
+
+bool CBC_CodeBase::SetWideNarrowRatio(int8_t ratio) {
+  return false;
+}
+
+bool CBC_CodeBase::SetStartChar(char start) {
+  return false;
+}
+
+bool CBC_CodeBase::SetEndChar(char end) {
+  return false;
+}
+
+bool CBC_CodeBase::SetErrorCorrectionLevel(int32_t level) {
+  return false;
+}
+
 bool CBC_CodeBase::SetCharEncoding(int32_t encoding) {
   return m_pBCWriter->SetCharEncoding(encoding);
 }