Add FPDF_RenderPageBitmapWithMatrix.

core/fpdfdoc/cpdf_annotlist.cpp

Index: core/fpdfdoc/cpdf_annotlist.cpp
diff --git a/core/fpdfdoc/cpdf_annotlist.cpp b/core/fpdfdoc/cpdf_annotlist.cpp
index e68e08a1f6c10f03a30dbbcc1d0c7477916fc4f2..1ad6ab23a61e2b7ba903c067b54229f0113d6da9 100644
--- a/core/fpdfdoc/cpdf_annotlist.cpp
+++ b/core/fpdfdoc/cpdf_annotlist.cpp
@@ -106,7 +106,7 @@ void CPDF_AnnotList::DisplayPass(CPDF_Page* pPage,
                                  CFX_RenderDevice* pDevice,
                                  CPDF_RenderContext* pContext,
                                  bool bPrinting,
-                                 CFX_Matrix* pMatrix,
+                                 const CFX_Matrix* pMatrix,
                                  bool bWidgetPass,
                                  CPDF_RenderOptions* pOptions,
                                  FX_RECT* clip_rect) {
@@ -156,7 +156,7 @@ void CPDF_AnnotList::DisplayAnnots(CPDF_Page* pPage,
                                    CFX_RenderDevice* pDevice,
                                    CPDF_RenderContext* pContext,
                                    bool bPrinting,
-                                   CFX_Matrix* pUser2Device,
+                                   const CFX_Matrix* pUser2Device,
                                    uint32_t dwAnnotFlags,
                                    CPDF_RenderOptions* pOptions,
                                    FX_RECT* pClipRect) {
@@ -173,7 +173,7 @@ void CPDF_AnnotList::DisplayAnnots(CPDF_Page* pPage,
 void CPDF_AnnotList::DisplayAnnots(CPDF_Page* pPage,
                                    CPDF_RenderContext* pContext,
                                    bool bPrinting,
-                                   CFX_Matrix* pMatrix,
+                                   const CFX_Matrix* pMatrix,
                                    bool bShowWidget,
                                    CPDF_RenderOptions* pOptions) {
   uint32_t dwAnnotFlags = bShowWidget ? ANNOTFLAG_INVISIBLE | ANNOTFLAG_HIDDEN