Create API for adding content marks and setting their params.chromium/3488

This CL creates the following new functions in the public API:
- FPDFPageObj_AddMark
- FPDFPageObjMark_SetIntParam
- FPDFPageObjMark_SetStringParam

Bug: pdfium:1037
Change-Id: Icabf3fdd8e8153b9156bab807a3708d38a9365d8
Reviewed-on: https://pdfium-review.googlesource.com/37330
Commit-Queue: Henrique Nakashima <hnakashima@chromium.org>
Reviewed-by: Lei Zhang <thestig@chromium.org>

1 files changed, 2 insertions, 2 deletions

diff --git a/core/fpdfapi/page/cpdf_streamcontentparser.cpp b/core/fpdfapi/page/cpdf_streamcontentparser.cpp
index ba7388cf15..01fb347a9a 100644
--- a/core/fpdfapi/page/cpdf_streamcontentparser.cpp
+++ b/core/fpdfapi/page/cpdf_streamcontentparser.cpp
@@ -603,7 +603,7 @@ void CPDF_StreamContentParser::Handle_EOFillStrokePath() {
 
 void CPDF_StreamContentParser::Handle_BeginMarkedContent_Dictionary() {
   ByteString tag = GetString(1);
-  const CPDF_Object* pProperty = GetObject(0);
+  CPDF_Object* pProperty = GetObject(0);
   if (!pProperty)
     return;
 
@@ -614,7 +614,7 @@ void CPDF_StreamContentParser::Handle_BeginMarkedContent_Dictionary() {
       return;
     bDirect = false;
   }
-  if (const CPDF_Dictionary* pDict = pProperty->AsDictionary()) {
+  if (CPDF_Dictionary* pDict = pProperty->AsDictionary()) {
     std::unique_ptr<CPDF_ContentMark> new_marks =
         m_ContentMarksStack.top()->Clone();
     new_marks->AddMark(std::move(tag), pDict, bDirect);