Rename FX_SAFE_DWORD to FX_SAFE_UINT32

We removed the FX_DWORD typedef in favour of uint32_t. This CL cleans up the
FX_SAFE_DWORD naming to match.

BUG=pdfium:81, pdfium:470

Review URL: https://codereview.chromium.org/1861403002

14 files changed, 108 insertions, 107 deletions

diff --git a/core/fdrm/crypto/fx_crypt.cpp b/core/fdrm/crypto/fx_crypt.cpp
index f3665060f8..9e10f369ca 100644
--- a/core/fdrm/crypto/fx_crypt.cpp
+++ b/core/fdrm/crypto/fx_crypt.cpp
@@ -62,14 +62,14 @@ struct md5_context {
   uint32_t state[4];
   uint8_t buffer[64];
 };
-#define GET_FX_DWORD(n, b, i)                          \
+#define GET_UINT32(n, b, i)                            \
   {                                                    \
     (n) = (uint32_t)((uint8_t*)b)[(i)] |               \
           (((uint32_t)((uint8_t*)b)[(i) + 1]) << 8) |  \
           (((uint32_t)((uint8_t*)b)[(i) + 2]) << 16) | \
           (((uint32_t)((uint8_t*)b)[(i) + 3]) << 24);  \
   }
-#define PUT_FX_DWORD(n, b, i)                                 \
+#define PUT_UINT32(n, b, i)                                   \
   {                                                           \
     (((uint8_t*)b)[(i)]) = (uint8_t)(((n)) & 0xFF);           \
     (((uint8_t*)b)[(i) + 1]) = (uint8_t)(((n) >> 8) & 0xFF);  \
@@ -78,22 +78,22 @@ struct md5_context {
   }
 void md5_process(struct md5_context* ctx, const uint8_t data[64]) {
   uint32_t A, B, C, D, X[16];
-  GET_FX_DWORD(X[0], data, 0);
-  GET_FX_DWORD(X[1], data, 4);
-  GET_FX_DWORD(X[2], data, 8);
-  GET_FX_DWORD(X[3], data, 12);
-  GET_FX_DWORD(X[4], data, 16);
-  GET_FX_DWORD(X[5], data, 20);
-  GET_FX_DWORD(X[6], data, 24);
-  GET_FX_DWORD(X[7], data, 28);
-  GET_FX_DWORD(X[8], data, 32);
-  GET_FX_DWORD(X[9], data, 36);
-  GET_FX_DWORD(X[10], data, 40);
-  GET_FX_DWORD(X[11], data, 44);
-  GET_FX_DWORD(X[12], data, 48);
-  GET_FX_DWORD(X[13], data, 52);
-  GET_FX_DWORD(X[14], data, 56);
-  GET_FX_DWORD(X[15], data, 60);
+  GET_UINT32(X[0], data, 0);
+  GET_UINT32(X[1], data, 4);
+  GET_UINT32(X[2], data, 8);
+  GET_UINT32(X[3], data, 12);
+  GET_UINT32(X[4], data, 16);
+  GET_UINT32(X[5], data, 20);
+  GET_UINT32(X[6], data, 24);
+  GET_UINT32(X[7], data, 28);
+  GET_UINT32(X[8], data, 32);
+  GET_UINT32(X[9], data, 36);
+  GET_UINT32(X[10], data, 40);
+  GET_UINT32(X[11], data, 44);
+  GET_UINT32(X[12], data, 48);
+  GET_UINT32(X[13], data, 52);
+  GET_UINT32(X[14], data, 56);
+  GET_UINT32(X[15], data, 60);
 #define S(x, n) ((x << n) | ((x & 0xFFFFFFFF) >> (32 - n)))
 #define P(a, b, c, d, k, s, t)  \
   {                             \
@@ -226,16 +226,16 @@ void CRYPT_MD5Finish(void* pctx, uint8_t digest[16]) {
   struct md5_context* ctx = (struct md5_context*)pctx;
   uint32_t last, padn;
   uint8_t msglen[8];
-  PUT_FX_DWORD(ctx->total[0], msglen, 0);
-  PUT_FX_DWORD(ctx->total[1], msglen, 4);
+  PUT_UINT32(ctx->total[0], msglen, 0);
+  PUT_UINT32(ctx->total[1], msglen, 4);
   last = (ctx->total[0] >> 3) & 0x3F;
   padn = (last < 56) ? (56 - last) : (120 - last);
   CRYPT_MD5Update(ctx, md5_padding, padn);
   CRYPT_MD5Update(ctx, msglen, 8);
-  PUT_FX_DWORD(ctx->state[0], digest, 0);
-  PUT_FX_DWORD(ctx->state[1], digest, 4);
-  PUT_FX_DWORD(ctx->state[2], digest, 8);
-  PUT_FX_DWORD(ctx->state[3], digest, 12);
+  PUT_UINT32(ctx->state[0], digest, 0);
+  PUT_UINT32(ctx->state[1], digest, 4);
+  PUT_UINT32(ctx->state[2], digest, 8);
+  PUT_UINT32(ctx->state[3], digest, 12);
 }
 void CRYPT_MD5Generate(const uint8_t* input,
                        uint32_t length,
diff --git a/core/fdrm/crypto/fx_crypt_sha.cpp b/core/fdrm/crypto/fx_crypt_sha.cpp
index 28b3ce3739..ed5da2f504 100644
--- a/core/fdrm/crypto/fx_crypt_sha.cpp
+++ b/core/fdrm/crypto/fx_crypt_sha.cpp
@@ -159,12 +159,12 @@ typedef struct {
   uint32_t state[8];
   uint8_t buffer[64];
 } sha256_context;
-#define GET_FX_DWORD(n, b, i)                                           \
+#define GET_UINT32(n, b, i)                                             \
   {                                                                     \
     (n) = ((uint32_t)(b)[(i)] << 24) | ((uint32_t)(b)[(i) + 1] << 16) | \
           ((uint32_t)(b)[(i) + 2] << 8) | ((uint32_t)(b)[(i) + 3]);     \
   }
-#define PUT_FX_DWORD(n, b, i)            \
+#define PUT_UINT32(n, b, i)              \
   {                                      \
     (b)[(i)] = (uint8_t)((n) >> 24);     \
     (b)[(i) + 1] = (uint8_t)((n) >> 16); \
@@ -187,22 +187,22 @@ void CRYPT_SHA256Start(void* context) {
 static void sha256_process(sha256_context* ctx, const uint8_t data[64]) {
   uint32_t temp1, temp2, W[64];
   uint32_t A, B, C, D, E, F, G, H;
-  GET_FX_DWORD(W[0], data, 0);
-  GET_FX_DWORD(W[1], data, 4);
-  GET_FX_DWORD(W[2], data, 8);
-  GET_FX_DWORD(W[3], data, 12);
-  GET_FX_DWORD(W[4], data, 16);
-  GET_FX_DWORD(W[5], data, 20);
-  GET_FX_DWORD(W[6], data, 24);
-  GET_FX_DWORD(W[7], data, 28);
-  GET_FX_DWORD(W[8], data, 32);
-  GET_FX_DWORD(W[9], data, 36);
-  GET_FX_DWORD(W[10], data, 40);
-  GET_FX_DWORD(W[11], data, 44);
-  GET_FX_DWORD(W[12], data, 48);
-  GET_FX_DWORD(W[13], data, 52);
-  GET_FX_DWORD(W[14], data, 56);
-  GET_FX_DWORD(W[15], data, 60);
+  GET_UINT32(W[0], data, 0);
+  GET_UINT32(W[1], data, 4);
+  GET_UINT32(W[2], data, 8);
+  GET_UINT32(W[3], data, 12);
+  GET_UINT32(W[4], data, 16);
+  GET_UINT32(W[5], data, 20);
+  GET_UINT32(W[6], data, 24);
+  GET_UINT32(W[7], data, 28);
+  GET_UINT32(W[8], data, 32);
+  GET_UINT32(W[9], data, 36);
+  GET_UINT32(W[10], data, 40);
+  GET_UINT32(W[11], data, 44);
+  GET_UINT32(W[12], data, 48);
+  GET_UINT32(W[13], data, 52);
+  GET_UINT32(W[14], data, 56);
+  GET_UINT32(W[15], data, 60);
 #define SHR(x, n) ((x & 0xFFFFFFFF) >> n)
 #define ROTR(x, n) (SHR(x, n) | (x << (32 - n)))
 #define S0(x) (ROTR(x, 7) ^ ROTR(x, 18) ^ SHR(x, 3))
@@ -340,20 +340,20 @@ void CRYPT_SHA256Finish(void* context, uint8_t digest[32]) {
   uint8_t msglen[8];
   high = (ctx->total[0] >> 29) | (ctx->total[1] << 3);
   low = (ctx->total[0] << 3);
-  PUT_FX_DWORD(high, msglen, 0);
-  PUT_FX_DWORD(low, msglen, 4);
+  PUT_UINT32(high, msglen, 0);
+  PUT_UINT32(low, msglen, 4);
   last = ctx->total[0] & 0x3F;
   padn = (last < 56) ? (56 - last) : (120 - last);
   CRYPT_SHA256Update(ctx, sha256_padding, padn);
   CRYPT_SHA256Update(ctx, msglen, 8);
-  PUT_FX_DWORD(ctx->state[0], digest, 0);
-  PUT_FX_DWORD(ctx->state[1], digest, 4);
-  PUT_FX_DWORD(ctx->state[2], digest, 8);
-  PUT_FX_DWORD(ctx->state[3], digest, 12);
-  PUT_FX_DWORD(ctx->state[4], digest, 16);
-  PUT_FX_DWORD(ctx->state[5], digest, 20);
-  PUT_FX_DWORD(ctx->state[6], digest, 24);
-  PUT_FX_DWORD(ctx->state[7], digest, 28);
+  PUT_UINT32(ctx->state[0], digest, 0);
+  PUT_UINT32(ctx->state[1], digest, 4);
+  PUT_UINT32(ctx->state[2], digest, 8);
+  PUT_UINT32(ctx->state[3], digest, 12);
+  PUT_UINT32(ctx->state[4], digest, 16);
+  PUT_UINT32(ctx->state[5], digest, 20);
+  PUT_UINT32(ctx->state[6], digest, 24);
+  PUT_UINT32(ctx->state[7], digest, 28);
 }
 void CRYPT_SHA256Generate(const uint8_t* data,
                           uint32_t size,
@@ -468,7 +468,7 @@ static const FX_CHAR* constants[] = {
           ((uint64_t)(b)[(i) + 4] << 24) | ((uint64_t)(b)[(i) + 5] << 16) | \
           ((uint64_t)(b)[(i) + 6] << 8) | ((uint64_t)(b)[(i) + 7]);         \
   }
-#define PUT_FX_64DWORD(n, b, i)          \
+#define PUT_UINT64(n, b, i)              \
   {                                      \
     (b)[(i)] = (uint8_t)((n) >> 56);     \
     (b)[(i) + 1] = (uint8_t)((n) >> 48); \
@@ -582,18 +582,18 @@ void CRYPT_SHA384Finish(void* context, uint8_t digest[48]) {
   uint64_t high, low;
   high = (ctx->total[0] >> 29) | (ctx->total[1] << 3);
   low = (ctx->total[0] << 3);
-  PUT_FX_64DWORD(high, msglen, 0);
-  PUT_FX_64DWORD(low, msglen, 8);
+  PUT_UINT64(high, msglen, 0);
+  PUT_UINT64(low, msglen, 8);
   last = (uint32_t)ctx->total[0] & 0x7F;
   padn = (last < 112) ? (112 - last) : (240 - last);
   CRYPT_SHA384Update(ctx, sha384_padding, padn);
   CRYPT_SHA384Update(ctx, msglen, 16);
-  PUT_FX_64DWORD(ctx->state[0], digest, 0);
-  PUT_FX_64DWORD(ctx->state[1], digest, 8);
-  PUT_FX_64DWORD(ctx->state[2], digest, 16);
-  PUT_FX_64DWORD(ctx->state[3], digest, 24);
-  PUT_FX_64DWORD(ctx->state[4], digest, 32);
-  PUT_FX_64DWORD(ctx->state[5], digest, 40);
+  PUT_UINT64(ctx->state[0], digest, 0);
+  PUT_UINT64(ctx->state[1], digest, 8);
+  PUT_UINT64(ctx->state[2], digest, 16);
+  PUT_UINT64(ctx->state[3], digest, 24);
+  PUT_UINT64(ctx->state[4], digest, 32);
+  PUT_UINT64(ctx->state[5], digest, 40);
 }
 void CRYPT_SHA384Generate(const uint8_t* data,
                           uint32_t size,
@@ -629,20 +629,20 @@ void CRYPT_SHA512Finish(void* context, uint8_t digest[64]) {
   uint64_t high, low;
   high = (ctx->total[0] >> 29) | (ctx->total[1] << 3);
   low = (ctx->total[0] << 3);
-  PUT_FX_64DWORD(high, msglen, 0);
-  PUT_FX_64DWORD(low, msglen, 8);
+  PUT_UINT64(high, msglen, 0);
+  PUT_UINT64(low, msglen, 8);
   last = (uint32_t)ctx->total[0] & 0x7F;
   padn = (last < 112) ? (112 - last) : (240 - last);
   CRYPT_SHA512Update(ctx, sha384_padding, padn);
   CRYPT_SHA512Update(ctx, msglen, 16);
-  PUT_FX_64DWORD(ctx->state[0], digest, 0);
-  PUT_FX_64DWORD(ctx->state[1], digest, 8);
-  PUT_FX_64DWORD(ctx->state[2], digest, 16);
-  PUT_FX_64DWORD(ctx->state[3], digest, 24);
-  PUT_FX_64DWORD(ctx->state[4], digest, 32);
-  PUT_FX_64DWORD(ctx->state[5], digest, 40);
-  PUT_FX_64DWORD(ctx->state[6], digest, 48);
-  PUT_FX_64DWORD(ctx->state[7], digest, 56);
+  PUT_UINT64(ctx->state[0], digest, 0);
+  PUT_UINT64(ctx->state[1], digest, 8);
+  PUT_UINT64(ctx->state[2], digest, 16);
+  PUT_UINT64(ctx->state[3], digest, 24);
+  PUT_UINT64(ctx->state[4], digest, 32);
+  PUT_UINT64(ctx->state[5], digest, 40);
+  PUT_UINT64(ctx->state[6], digest, 48);
+  PUT_UINT64(ctx->state[7], digest, 56);
 }
 void CRYPT_SHA512Generate(const uint8_t* data,
                           uint32_t size,
diff --git a/core/fpdfapi/fpdf_page/fpdf_page_func.cpp b/core/fpdfapi/fpdf_page/fpdf_page_func.cpp
index ebd6811da8..b00ab73af1 100644
--- a/core/fpdfapi/fpdf_page/fpdf_page_func.cpp
+++ b/core/fpdfapi/fpdf_page/fpdf_page_func.cpp
@@ -541,7 +541,7 @@ FX_BOOL CPDF_SampledFunc::v_Init(CPDF_Object* pObj) {
   m_pSampleStream = new CPDF_StreamAcc;
   m_pSampleStream->LoadAllData(pStream, FALSE);
   m_pEncodeInfo = FX_Alloc(SampleEncodeInfo, m_nInputs);
-  FX_SAFE_DWORD nTotalSampleBits = 1;
+  FX_SAFE_UINT32 nTotalSampleBits = 1;
   for (uint32_t i = 0; i < m_nInputs; i++) {
     m_pEncodeInfo[i].sizes = pSize ? pSize->GetIntegerAt(i) : 0;
     if (!pSize && i == 0)
@@ -560,7 +560,7 @@ FX_BOOL CPDF_SampledFunc::v_Init(CPDF_Object* pObj) {
   }
   nTotalSampleBits *= m_nBitsPerSample;
   nTotalSampleBits *= m_nOutputs;
-  FX_SAFE_DWORD nTotalSampleBytes = nTotalSampleBits;
+  FX_SAFE_UINT32 nTotalSampleBytes = nTotalSampleBits;
   nTotalSampleBytes += 7;
   nTotalSampleBytes /= 8;
   if (!nTotalSampleBytes.IsValid() || nTotalSampleBytes.ValueOrDie() == 0 ||
diff --git a/core/fpdfapi/fpdf_page/fpdf_page_parser_old.cpp b/core/fpdfapi/fpdf_page/fpdf_page_parser_old.cpp
index a3c88c00df..183573aaa3 100644
--- a/core/fpdfapi/fpdf_page/fpdf_page_parser_old.cpp
+++ b/core/fpdfapi/fpdf_page/fpdf_page_parser_old.cpp
@@ -797,7 +797,7 @@ void CPDF_ContentParser::Continue(IFX_Pause* pPause) {
     if (m_InternalStage == STAGE_GETCONTENT) {
       if (m_CurrentOffset == m_nStreams) {
         if (!m_StreamArray.empty()) {
-          FX_SAFE_DWORD safeSize = 0;
+          FX_SAFE_UINT32 safeSize = 0;
           for (const auto& stream : m_StreamArray) {
             safeSize += stream->GetSize();
             safeSize += 1;
diff --git a/core/fpdfapi/fpdf_parser/cpdf_data_avail.cpp b/core/fpdfapi/fpdf_parser/cpdf_data_avail.cpp
index 15f98b26b9..68f8b88557 100644
--- a/core/fpdfapi/fpdf_parser/cpdf_data_avail.cpp
+++ b/core/fpdfapi/fpdf_parser/cpdf_data_avail.cpp
@@ -1507,7 +1507,7 @@ IPDF_DataAvail::DocAvailStatus CPDF_DataAvail::CheckLinearizedData(
     return DataAvailable;
 
   if (!m_bMainXRefLoadTried) {
-    FX_SAFE_DWORD data_size = m_dwFileLen;
+    FX_SAFE_UINT32 data_size = m_dwFileLen;
     data_size -= m_dwLastXRefOffset;
     if (!data_size.IsValid())
       return DataError;
diff --git a/core/fpdfapi/fpdf_parser/cpdf_hint_tables.cpp b/core/fpdfapi/fpdf_parser/cpdf_hint_tables.cpp
index 18687e5fb7..3e08ead9ff 100644
--- a/core/fpdfapi/fpdf_parser/cpdf_hint_tables.cpp
+++ b/core/fpdfapi/fpdf_parser/cpdf_hint_tables.cpp
@@ -16,7 +16,7 @@
 namespace {
 
 bool CanReadFromBitStream(const CFX_BitStream* hStream,
-                          const FX_SAFE_DWORD& num_bits) {
+                          const FX_SAFE_UINT32& num_bits) {
   return num_bits.IsValid() &&
          hStream->BitsRemaining() >= num_bits.ValueOrDie();
 }
@@ -60,7 +60,7 @@ FX_BOOL CPDF_HintTables::ReadPageHintTable(CFX_BitStream* hStream) {
   // Item 2: The location of the first page's page object.
   uint32_t dwFirstObjLoc = hStream->GetBits(32);
   if (dwFirstObjLoc > static_cast<uint32_t>(nStreamOffset)) {
-    FX_SAFE_DWORD safeLoc = pdfium::base::checked_cast<uint32_t>(nStreamLen);
+    FX_SAFE_UINT32 safeLoc = pdfium::base::checked_cast<uint32_t>(nStreamLen);
     safeLoc += dwFirstObjLoc;
     if (!safeLoc.IsValid())
       return FALSE;
@@ -107,13 +107,13 @@ FX_BOOL CPDF_HintTables::ReadPageHintTable(CFX_BitStream* hStream) {
   if (nPages < 1)
     return FALSE;
 
-  FX_SAFE_DWORD required_bits = dwDeltaObjectsBits;
+  FX_SAFE_UINT32 required_bits = dwDeltaObjectsBits;
   required_bits *= pdfium::base::checked_cast<uint32_t>(nPages);
   if (!CanReadFromBitStream(hStream, required_bits))
     return FALSE;
 
   for (int i = 0; i < nPages; ++i) {
-    FX_SAFE_DWORD safeDeltaObj = hStream->GetBits(dwDeltaObjectsBits);
+    FX_SAFE_UINT32 safeDeltaObj = hStream->GetBits(dwDeltaObjectsBits);
     safeDeltaObj += dwObjLeastNum;
     if (!safeDeltaObj.IsValid())
       return FALSE;
@@ -128,7 +128,7 @@ FX_BOOL CPDF_HintTables::ReadPageHintTable(CFX_BitStream* hStream) {
 
   CFX_ArrayTemplate<uint32_t> dwPageLenArray;
   for (int i = 0; i < nPages; ++i) {
-    FX_SAFE_DWORD safePageLen = hStream->GetBits(dwDeltaPageLenBits);
+    FX_SAFE_UINT32 safePageLen = hStream->GetBits(dwDeltaPageLenBits);
     safePageLen += dwPageLeastLen;
     if (!safePageLen.IsValid())
       return FALSE;
@@ -191,7 +191,7 @@ FX_BOOL CPDF_HintTables::ReadPageHintTable(CFX_BitStream* hStream) {
   hStream->ByteAlign();
 
   for (int i = 0; i < nPages; i++) {
-    FX_SAFE_DWORD safeSize = m_dwNSharedObjsArray[i];
+    FX_SAFE_UINT32 safeSize = m_dwNSharedObjsArray[i];
     safeSize *= dwSharedNumeratorBits;
     if (!CanReadFromBitStream(hStream, safeSize))
       return FALSE;
@@ -200,7 +200,8 @@ FX_BOOL CPDF_HintTables::ReadPageHintTable(CFX_BitStream* hStream) {
   }
   hStream->ByteAlign();
 
-  FX_SAFE_DWORD safeTotalPageLen = pdfium::base::checked_cast<uint32_t>(nPages);
+  FX_SAFE_UINT32 safeTotalPageLen =
+      pdfium::base::checked_cast<uint32_t>(nPages);
   safeTotalPageLen *= dwDeltaPageLenBits;
   if (!CanReadFromBitStream(hStream, safeTotalPageLen))
     return FALSE;
@@ -220,7 +221,7 @@ FX_BOOL CPDF_HintTables::ReadSharedObjHintTable(CFX_BitStream* hStream,
   if (nStreamOffset < 0 || nStreamLen < 1)
     return FALSE;
 
-  FX_SAFE_DWORD bit_offset = offset;
+  FX_SAFE_UINT32 bit_offset = offset;
   bit_offset *= 8;
   if (!bit_offset.IsValid() || hStream->GetPos() > bit_offset.ValueOrDie())
     return FALSE;
@@ -263,14 +264,14 @@ FX_BOOL CPDF_HintTables::ReadSharedObjHintTable(CFX_BitStream* hStream,
 
   uint32_t dwPrevObjLen = 0;
   uint32_t dwCurObjLen = 0;
-  FX_SAFE_DWORD required_bits = dwSharedObjTotal;
+  FX_SAFE_UINT32 required_bits = dwSharedObjTotal;
   required_bits *= dwDeltaGroupLen;
   if (!CanReadFromBitStream(hStream, required_bits))
     return FALSE;
 
   for (uint32_t i = 0; i < dwSharedObjTotal; ++i) {
     dwPrevObjLen = dwCurObjLen;
-    FX_SAFE_DWORD safeObjLen = hStream->GetBits(dwDeltaGroupLen);
+    FX_SAFE_UINT32 safeObjLen = hStream->GetBits(dwDeltaGroupLen);
     safeObjLen += dwGroupLeastLen;
     if (!safeObjLen.IsValid())
       return FALSE;
@@ -281,7 +282,7 @@ FX_BOOL CPDF_HintTables::ReadSharedObjHintTable(CFX_BitStream* hStream,
       if (i == 0)
         m_szSharedObjOffsetArray.push_back(m_szFirstPageObjOffset);
     } else {
-      FX_SAFE_DWORD safeObjNum = dwFirstSharedObjNum;
+      FX_SAFE_UINT32 safeObjNum = dwFirstSharedObjNum;
       safeObjNum += i - m_nFirstPageSharedObjs;
       if (!safeObjNum.IsValid())
         return FALSE;
diff --git a/core/fpdfapi/fpdf_parser/cpdf_parser.cpp b/core/fpdfapi/fpdf_parser/cpdf_parser.cpp
index 73ca71ef1a..15af1ca5c7 100644
--- a/core/fpdfapi/fpdf_parser/cpdf_parser.cpp
+++ b/core/fpdfapi/fpdf_parser/cpdf_parser.cpp
@@ -1012,7 +1012,7 @@ FX_BOOL CPDF_Parser::LoadCrossRefV5(FX_FILESIZE* pos, FX_BOOL bMainXRef) {
   }
 
   CFX_ArrayTemplate<uint32_t> WidthArray;
-  FX_SAFE_DWORD dwAccWidth = 0;
+  FX_SAFE_UINT32 dwAccWidth = 0;
   for (uint32_t i = 0; i < pArray->GetCount(); i++) {
     WidthArray.Add(pArray->GetIntegerAt(i));
     dwAccWidth += WidthArray[i];
@@ -1039,7 +1039,7 @@ FX_BOOL CPDF_Parser::LoadCrossRefV5(FX_FILESIZE* pos, FX_BOOL bMainXRef) {
         pdfium::base::checked_cast<uint32_t, int32_t>(startnum);
     uint32_t count =
         pdfium::base::checked_cast<uint32_t, int32_t>(arrIndex[i].second);
-    FX_SAFE_DWORD dwCaculatedSize = segindex;
+    FX_SAFE_UINT32 dwCaculatedSize = segindex;
     dwCaculatedSize += count;
     dwCaculatedSize *= totalWidth;
     if (!dwCaculatedSize.IsValid() ||
@@ -1048,7 +1048,7 @@ FX_BOOL CPDF_Parser::LoadCrossRefV5(FX_FILESIZE* pos, FX_BOOL bMainXRef) {
     }
 
     const uint8_t* segstart = pData + segindex * totalWidth;
-    FX_SAFE_DWORD dwMaxObjNum = startnum;
+    FX_SAFE_UINT32 dwMaxObjNum = startnum;
     dwMaxObjNum += count;
     uint32_t dwV5Size = m_ObjectInfo.empty() ? 0 : GetLastObjNum() + 1;
     if (!dwMaxObjNum.IsValid() || dwMaxObjNum.ValueOrDie() > dwV5Size)
diff --git a/core/fpdfapi/fpdf_render/fpdf_render_image.cpp b/core/fpdfapi/fpdf_render/fpdf_render_image.cpp
index 167570ba92..16c55c57af 100644
--- a/core/fpdfapi/fpdf_render/fpdf_render_image.cpp
+++ b/core/fpdfapi/fpdf_render/fpdf_render_image.cpp
@@ -931,7 +931,7 @@ CFX_DIBitmap* CPDF_RenderStatus::LoadSMask(CPDF_Dictionary* pSMaskDict,
         }
         CFX_FixedBufGrow<FX_FLOAT, 8> float_array(comps);
         FX_FLOAT* pFloats = float_array;
-        FX_SAFE_DWORD num_floats = comps;
+        FX_SAFE_UINT32 num_floats = comps;
         num_floats *= sizeof(FX_FLOAT);
         if (!num_floats.IsValid()) {
           return NULL;
diff --git a/core/fpdfapi/fpdf_render/fpdf_render_loadimage.cpp b/core/fpdfapi/fpdf_render/fpdf_render_loadimage.cpp
index 61e47036fa..db1b8ccd71 100644
--- a/core/fpdfapi/fpdf_render/fpdf_render_loadimage.cpp
+++ b/core/fpdfapi/fpdf_render/fpdf_render_loadimage.cpp
@@ -38,8 +38,8 @@ unsigned int GetBits8(const uint8_t* pData, uint64_t bitpos, size_t nbits) {
   return (byte >> (8 - nbits - (bitpos % 8))) & ((1 << nbits) - 1);
 }
 
-FX_SAFE_DWORD CalculatePitch8(uint32_t bpc, uint32_t components, int width) {
-  FX_SAFE_DWORD pitch = bpc;
+FX_SAFE_UINT32 CalculatePitch8(uint32_t bpc, uint32_t components, int width) {
+  FX_SAFE_UINT32 pitch = bpc;
   pitch *= components;
   pitch *= width;
   pitch += 7;
@@ -47,8 +47,8 @@ FX_SAFE_DWORD CalculatePitch8(uint32_t bpc, uint32_t components, int width) {
   return pitch;
 }
 
-FX_SAFE_DWORD CalculatePitch32(int bpp, int width) {
-  FX_SAFE_DWORD pitch = bpp;
+FX_SAFE_UINT32 CalculatePitch32(int bpp, int width) {
+  FX_SAFE_UINT32 pitch = bpp;
   pitch *= width;
   pitch += 31;
   pitch /= 32;  // quantized to number of 32-bit words.
@@ -177,7 +177,7 @@ FX_BOOL CPDF_DIBSource::Load(CPDF_Document* pDoc,
   if (m_bDoBpcCheck && (m_bpc == 0 || m_nComponents == 0)) {
     return FALSE;
   }
-  FX_SAFE_DWORD src_size =
+  FX_SAFE_UINT32 src_size =
       CalculatePitch8(m_bpc, m_nComponents, m_Width) * m_Height;
   if (!src_size.IsValid()) {
     return FALSE;
@@ -202,7 +202,7 @@ FX_BOOL CPDF_DIBSource::Load(CPDF_Document* pDoc,
   } else {
     m_bpp = 24;
   }
-  FX_SAFE_DWORD pitch = CalculatePitch32(m_bpp, m_Width);
+  FX_SAFE_UINT32 pitch = CalculatePitch32(m_bpp, m_Width);
   if (!pitch.IsValid()) {
     return FALSE;
   }
@@ -246,7 +246,7 @@ int CPDF_DIBSource::ContinueToLoadMask() {
   if (!m_bpc || !m_nComponents) {
     return 0;
   }
-  FX_SAFE_DWORD pitch = CalculatePitch32(m_bpp, m_Width);
+  FX_SAFE_UINT32 pitch = CalculatePitch32(m_bpp, m_Width);
   if (!pitch.IsValid()) {
     return 0;
   }
@@ -299,7 +299,7 @@ int CPDF_DIBSource::StartLoadDIBSource(CPDF_Document* pDoc,
   if (m_bDoBpcCheck && (m_bpc == 0 || m_nComponents == 0)) {
     return 0;
   }
-  FX_SAFE_DWORD src_size =
+  FX_SAFE_UINT32 src_size =
       CalculatePitch8(m_bpc, m_nComponents, m_Width) * m_Height;
   if (!src_size.IsValid()) {
     return 0;
@@ -611,12 +611,12 @@ int CPDF_DIBSource::CreateDecoder() {
   if (!m_pDecoder)
     return 0;
 
-  FX_SAFE_DWORD requested_pitch =
+  FX_SAFE_UINT32 requested_pitch =
       CalculatePitch8(m_bpc, m_nComponents, m_Width);
   if (!requested_pitch.IsValid()) {
     return 0;
   }
-  FX_SAFE_DWORD provided_pitch = CalculatePitch8(
+  FX_SAFE_UINT32 provided_pitch = CalculatePitch8(
       m_pDecoder->GetBPC(), m_pDecoder->CountComps(), m_pDecoder->GetWidth());
   if (!provided_pitch.IsValid()) {
     return 0;
@@ -1030,7 +1030,7 @@ const uint8_t* CPDF_DIBSource::GetScanline(int line) const {
   if (m_bpc == 0) {
     return nullptr;
   }
-  FX_SAFE_DWORD src_pitch = CalculatePitch8(m_bpc, m_nComponents, m_Width);
+  FX_SAFE_UINT32 src_pitch = CalculatePitch8(m_bpc, m_nComponents, m_Width);
   if (!src_pitch.IsValid())
     return nullptr;
   uint32_t src_pitch_value = src_pitch.ValueOrDie();
@@ -1176,7 +1176,7 @@ void CPDF_DIBSource::DownSampleScanline(int line,
   }
 
   uint32_t src_width = m_Width;
-  FX_SAFE_DWORD pitch = CalculatePitch8(m_bpc, m_nComponents, m_Width);
+  FX_SAFE_UINT32 pitch = CalculatePitch8(m_bpc, m_nComponents, m_Width);
   if (!pitch.IsValid())
     return;
 
diff --git a/core/fxcodec/codec/fx_codec.cpp b/core/fxcodec/codec/fx_codec.cpp
index 79e5da27c8..ef9414dbe5 100644
--- a/core/fxcodec/codec/fx_codec.cpp
+++ b/core/fxcodec/codec/fx_codec.cpp
@@ -294,7 +294,7 @@ FX_BOOL CCodec_RLScanlineDecoder::Create(const uint8_t* src_buf,
   m_nComps = nComps;
   m_bpc = bpc;
   // Aligning the pitch to 4 bytes requires an integer overflow check.
-  FX_SAFE_DWORD pitch = width;
+  FX_SAFE_UINT32 pitch = width;
   pitch *= nComps;
   pitch *= bpc;
   pitch += 31;
diff --git a/core/fxcodec/codec/fx_codec_jpeg.cpp b/core/fxcodec/codec/fx_codec_jpeg.cpp
index ce39038438..33ebf1ba20 100644
--- a/core/fxcodec/codec/fx_codec_jpeg.cpp
+++ b/core/fxcodec/codec/fx_codec_jpeg.cpp
@@ -142,7 +142,7 @@ static void _JpegEncode(const CFX_DIBSource* pSource,
   uint32_t pitch = pSource->GetPitch();
   uint32_t width = pdfium::base::checked_cast<uint32_t>(pSource->GetWidth());
   uint32_t height = pdfium::base::checked_cast<uint32_t>(pSource->GetHeight());
-  FX_SAFE_DWORD safe_buf_len = width;
+  FX_SAFE_UINT32 safe_buf_len = width;
   safe_buf_len *= height;
   safe_buf_len *= nComponents;
   safe_buf_len += 1024;
diff --git a/core/fxcodec/codec/fx_codec_jpx_opj.cpp b/core/fxcodec/codec/fx_codec_jpx_opj.cpp
index 27b645c137..18d2c8d827 100644
--- a/core/fxcodec/codec/fx_codec_jpx_opj.cpp
+++ b/core/fxcodec/codec/fx_codec_jpx_opj.cpp
@@ -301,7 +301,7 @@ void sycc420_to_rgb(opj_image_t* img) {
   OPJ_UINT32 crw = img->comps[2].w;
   bool extw = sycc420_must_extend_cbcr(yw, cbw);
   bool exth = sycc420_must_extend_cbcr(yh, cbh);
-  FX_SAFE_DWORD safeSize = yw;
+  FX_SAFE_UINT32 safeSize = yw;
   safeSize *= yh;
   if (!safeSize.IsValid())
     return;
diff --git a/core/fxcodec/jbig2/JBig2_Image.cpp b/core/fxcodec/jbig2/JBig2_Image.cpp
index 7297199112..6a1c060b75 100644
--- a/core/fxcodec/jbig2/JBig2_Image.cpp
+++ b/core/fxcodec/jbig2/JBig2_Image.cpp
@@ -216,7 +216,7 @@ void CJBig2_Image::expand(int32_t h, FX_BOOL v) {
   uint32_t dwH = pdfium::base::checked_cast<uint32_t>(h);
   uint32_t dwStride = pdfium::base::checked_cast<uint32_t>(m_nStride);
   uint32_t dwHeight = pdfium::base::checked_cast<uint32_t>(m_nHeight);
-  FX_SAFE_DWORD safeMemSize = dwH;
+  FX_SAFE_UINT32 safeMemSize = dwH;
   safeMemSize *= dwStride;
   if (!safeMemSize.IsValid()) {
     return;
diff --git a/core/fxcrt/include/fx_safe_types.h b/core/fxcrt/include/fx_safe_types.h
index 84ea55a685..f12e74906b 100644
--- a/core/fxcrt/include/fx_safe_types.h
+++ b/core/fxcrt/include/fx_safe_types.h
@@ -11,7 +11,7 @@
 #include "core/fxcrt/include/fx_system.h"
 #include "third_party/base/numerics/safe_math.h"
 
-typedef pdfium::base::CheckedNumeric<uint32_t> FX_SAFE_DWORD;
+typedef pdfium::base::CheckedNumeric<uint32_t> FX_SAFE_UINT32;
 typedef pdfium::base::CheckedNumeric<int32_t> FX_SAFE_INT32;
 typedef pdfium::base::CheckedNumeric<size_t> FX_SAFE_SIZE_T;
 typedef pdfium::base::CheckedNumeric<FX_FILESIZE> FX_SAFE_FILESIZE;