fxcrt::{Byte,Wide}String missing move-assign operator

This hasn't been a big deal, since no data is copied, but avoids
some ref-count churn in the process.

Change-Id: I53c059284aa6806793c59a0c19b3e0d7fe4191d6
Reviewed-on: https://pdfium-review.googlesource.com/35350
Commit-Queue: dsinclair <dsinclair@chromium.org>
Reviewed-by: dsinclair <dsinclair@chromium.org>

1 files changed, 5 insertions, 1 deletions

diff --git a/core/fxcrt/bytestring.h b/core/fxcrt/bytestring.h
index 99b87b1d4c..5722c4925d 100644
--- a/core/fxcrt/bytestring.h
+++ b/core/fxcrt/bytestring.h
@@ -21,6 +21,7 @@
 
 namespace fxcrt {
 
+class ByteString_Assign_Test;
 class ByteString_Concat_Test;
 class StringPool_ByteString_Test;
 class WideString;
@@ -133,7 +134,8 @@ class ByteString {
 
   const ByteString& operator=(const char* str);
   const ByteString& operator=(const ByteStringView& bstrc);
-  const ByteString& operator=(const ByteString& stringSrc);
+  const ByteString& operator=(const ByteString& that);
+  const ByteString& operator=(ByteString&& that);
 
   const ByteString& operator+=(char ch);
   const ByteString& operator+=(const char* str);
@@ -209,9 +211,11 @@ class ByteString {
   void AllocCopy(ByteString& dest, size_t nCopyLen, size_t nCopyIndex) const;
   void AssignCopy(const char* pSrcData, size_t nSrcLen);
   void Concat(const char* lpszSrcData, size_t nSrcLen);
+  intptr_t ReferenceCountForTesting() const;
 
   RetainPtr<StringData> m_pData;
 
+  friend ByteString_Assign_Test;
   friend ByteString_Concat_Test;
   friend class StringPool_ByteString_Test;
 };