Remove FX_DWORD from core/ and delete definition

core/fpdfdoc/doc_formcontrol.cpp

Index: core/fpdfdoc/doc_formcontrol.cpp
diff --git a/core/fpdfdoc/doc_formcontrol.cpp b/core/fpdfdoc/doc_formcontrol.cpp
index 425c3a1ac3a9b748981cbefc59b2e5adb551e6ed..255b5e9a703fbad5b59b608c4fd2b1c5f9ead6f9 100644
--- a/core/fpdfdoc/doc_formcontrol.cpp
+++ b/core/fpdfdoc/doc_formcontrol.cpp
@@ -349,7 +349,7 @@ FX_ARGB CPDF_ApSettings::GetColor(int& iColorType,
     return 0;
 
   FX_ARGB color = 0;
-  FX_DWORD dwCount = pEntry->GetCount();
+  uint32_t dwCount = pEntry->GetCount();
   if (dwCount == 1) {
     iColorType = COLORTYPE_GRAY;
     FX_FLOAT g = pEntry->GetNumberAt(0) * 255;
@@ -398,7 +398,7 @@ void CPDF_ApSettings::GetOriginalColor(int& iColorType,
   if (!pEntry) {
     return;
   }
-  FX_DWORD dwCount = pEntry->GetCount();
+  uint32_t dwCount = pEntry->GetCount();
   if (dwCount == 1) {
     iColorType = COLORTYPE_GRAY;
     fc[0] = pEntry->GetNumberAt(0);