Change CXFA_FFWidget::RenderWidget() to take a const CFX_Matrix&.

Change some related code to take a const CFX_Matrix* since it is not
immediately obvious if the matrix can be made into a const-ref.

Change-Id: I15c840222b575cc479b1f6f0b6d3b3c0e50d5515
Reviewed-on: https://pdfium-review.googlesource.com/11113
Commit-Queue: Lei Zhang <thestig@chromium.org>
Reviewed-by: dsinclair <dsinclair@chromium.org>

1 files changed, 3 insertions, 4 deletions

diff --git a/xfa/fxfa/cxfa_ffsignature.cpp b/xfa/fxfa/cxfa_ffsignature.cpp
index 96de0a69b0..f527cd9cf8 100644
--- a/xfa/fxfa/cxfa_ffsignature.cpp
+++ b/xfa/fxfa/cxfa_ffsignature.cpp
@@ -21,16 +21,15 @@ bool CXFA_FFSignature::LoadWidget() {
 }
 
 void CXFA_FFSignature::RenderWidget(CXFA_Graphics* pGS,
-                                    CFX_Matrix* pMatrix,
+                                    const CFX_Matrix& matrix,
                                     uint32_t dwStatus) {
   if (!IsMatchVisibleStatus(dwStatus))
     return;
 
   CFX_Matrix mtRotate = GetRotateMatrix();
-  if (pMatrix)
-    mtRotate.Concat(*pMatrix);
+  mtRotate.Concat(matrix);
 
-  CXFA_FFWidget::RenderWidget(pGS, &mtRotate, dwStatus);
+  CXFA_FFWidget::RenderWidget(pGS, mtRotate, dwStatus);
 
   CXFA_Border borderUI = m_pDataAcc->GetUIBorder();
   DrawBorder(pGS, borderUI, m_rtUI, &mtRotate);