Fix some bool/int mismatches.

Found by winxfa bot when fx_bool defined to bool.

Review-Url: https://codereview.chromium.org/2449293002
diff --git a/core/fpdfapi/page/fpdf_page_parser_old.cpp b/core/fpdfapi/page/fpdf_page_parser_old.cpp
index 8c69903..ccee12d 100644
--- a/core/fpdfapi/page/fpdf_page_parser_old.cpp
+++ b/core/fpdfapi/page/fpdf_page_parser_old.cpp
@@ -107,7 +107,7 @@
     CCodec_ScanlineDecoder* pDecoder =
         CPDF_ModuleMgr::Get()->GetJpegModule()->CreateDecoder(
             src_buf, limit, width, height, 0,
-            pParam ? pParam->GetIntegerFor("ColorTransform", 1) : 1);
+            !pParam || pParam->GetIntegerFor("ColorTransform", 1));
     return DecodeAllScanlines(pDecoder, dest_buf, dest_size);
   }
   if (decoder == "RunLengthDecode" || decoder == "RL") {
diff --git a/core/fpdfapi/parser/cpdf_security_handler.cpp b/core/fpdfapi/parser/cpdf_security_handler.cpp
index 039ba4e..83fb625 100644
--- a/core/fpdfapi/parser/cpdf_security_handler.cpp
+++ b/core/fpdfapi/parser/cpdf_security_handler.cpp
@@ -387,21 +387,21 @@
   return TRUE;
 }
 
-int CPDF_SecurityHandler::CheckPassword(const uint8_t* password,
-                                        uint32_t size,
-                                        FX_BOOL bOwner,
-                                        uint8_t* key,
-                                        int32_t key_len) {
-  if (m_Revision >= 5) {
+FX_BOOL CPDF_SecurityHandler::CheckPassword(const uint8_t* password,
+                                            uint32_t size,
+                                            FX_BOOL bOwner,
+                                            uint8_t* key,
+                                            int32_t key_len) {
+  if (m_Revision >= 5)
     return AES256_CheckPassword(password, size, bOwner, key);
-  }
+
   uint8_t keybuf[32];
-  if (!key) {
+  if (!key)
     key = keybuf;
-  }
-  if (bOwner) {
+
+  if (bOwner)
     return CheckOwnerPassword(password, size, key, key_len);
-  }
+
   return CheckUserPassword(password, size, FALSE, key, key_len) ||
          CheckUserPassword(password, size, TRUE, key, key_len);
 }
diff --git a/core/fpdfapi/parser/cpdf_security_handler.h b/core/fpdfapi/parser/cpdf_security_handler.h
index 686a25c..9132fd9 100644
--- a/core/fpdfapi/parser/cpdf_security_handler.h
+++ b/core/fpdfapi/parser/cpdf_security_handler.h
@@ -50,11 +50,11 @@
   CFX_ByteString GetUserPassword(const uint8_t* owner_pass,
                                  uint32_t pass_size,
                                  int32_t key_len);
-  int CheckPassword(const uint8_t* password,
-                    uint32_t pass_size,
-                    FX_BOOL bOwner,
-                    uint8_t* key,
-                    int key_len);
+  FX_BOOL CheckPassword(const uint8_t* password,
+                        uint32_t pass_size,
+                        FX_BOOL bOwner,
+                        uint8_t* key,
+                        int key_len);
 
  private:
   FX_BOOL LoadDict(CPDF_Dictionary* pEncryptDict);
diff --git a/core/fpdfapi/parser/fpdf_parser_decode.cpp b/core/fpdfapi/parser/fpdf_parser_decode.cpp
index 88712c9..ed379c7 100644
--- a/core/fpdfapi/parser/fpdf_parser_decode.cpp
+++ b/core/fpdfapi/parser/fpdf_parser_decode.cpp
@@ -305,17 +305,18 @@
                                   uint8_t*& dest_buf,
                                   uint32_t& dest_size) {
   int predictor = 0;
+  int Colors = 0;
+  int BitsPerComponent = 0;
+  int Columns = 0;
   FX_BOOL bEarlyChange = TRUE;
-  int Colors = 0, BitsPerComponent = 0, Columns = 0;
   if (pParams) {
     predictor = pParams->GetIntegerFor("Predictor");
-    bEarlyChange = pParams->GetIntegerFor("EarlyChange", 1);
+    bEarlyChange = !!pParams->GetIntegerFor("EarlyChange", 1);
     Colors = pParams->GetIntegerFor("Colors", 1);
     BitsPerComponent = pParams->GetIntegerFor("BitsPerComponent", 8);
     Columns = pParams->GetIntegerFor("Columns", 1);
-    if (!CheckFlateDecodeParams(Colors, BitsPerComponent, Columns)) {
+    if (!CheckFlateDecodeParams(Colors, BitsPerComponent, Columns))
       return (uint32_t)-1;
-    }
   }
   return CPDF_ModuleMgr::Get()->GetFlateModule()->FlateOrLZWDecode(
       bLZW, src_buf, src_size, bEarlyChange, predictor, Colors,
diff --git a/core/fpdfapi/render/fpdf_render_loadimage.cpp b/core/fpdfapi/render/fpdf_render_loadimage.cpp
index a4f0e7b..553481d 100644
--- a/core/fpdfapi/render/fpdf_render_loadimage.cpp
+++ b/core/fpdfapi/render/fpdf_render_loadimage.cpp
@@ -551,7 +551,7 @@
   } else if (decoder == "DCTDecode") {
     m_pDecoder.reset(CPDF_ModuleMgr::Get()->GetJpegModule()->CreateDecoder(
         src_data, src_size, m_Width, m_Height, m_nComponents,
-        pParams ? pParams->GetIntegerFor("ColorTransform", 1) : 1));
+        !pParams || pParams->GetIntegerFor("ColorTransform", 1)));
     if (!m_pDecoder) {
       bool bTransform = false;
       int comps;
diff --git a/core/fpdfapi/render/fpdf_render_pattern.cpp b/core/fpdfapi/render/fpdf_render_pattern.cpp
index dfb5669..f55a0e8 100644
--- a/core/fpdfapi/render/fpdf_render_pattern.cpp
+++ b/core/fpdfapi/render/fpdf_render_pattern.cpp
@@ -54,17 +54,19 @@
   FX_FLOAT start_y = pCoords->GetNumberAt(1);
   FX_FLOAT end_x = pCoords->GetNumberAt(2);
   FX_FLOAT end_y = pCoords->GetNumberAt(3);
-  FX_FLOAT t_min = 0, t_max = 1.0f;
+  FX_FLOAT t_min = 0;
+  FX_FLOAT t_max = 1.0f;
   CPDF_Array* pArray = pDict->GetArrayFor("Domain");
   if (pArray) {
     t_min = pArray->GetNumberAt(0);
     t_max = pArray->GetNumberAt(1);
   }
-  FX_BOOL bStartExtend = FALSE, bEndExtend = FALSE;
+  FX_BOOL bStartExtend = FALSE;
+  FX_BOOL bEndExtend = FALSE;
   pArray = pDict->GetArrayFor("Extend");
   if (pArray) {
-    bStartExtend = pArray->GetIntegerAt(0);
-    bEndExtend = pArray->GetIntegerAt(1);
+    bStartExtend = !!pArray->GetIntegerAt(0);
+    bEndExtend = !!pArray->GetIntegerAt(1);
   }
   int width = pBitmap->GetWidth();
   int height = pBitmap->GetHeight();
@@ -139,17 +141,19 @@
   FX_FLOAT end_r = pCoords->GetNumberAt(5);
   CFX_Matrix matrix;
   matrix.SetReverse(*pObject2Bitmap);
-  FX_FLOAT t_min = 0, t_max = 1.0f;
+  FX_FLOAT t_min = 0;
+  FX_FLOAT t_max = 1.0f;
   CPDF_Array* pArray = pDict->GetArrayFor("Domain");
   if (pArray) {
     t_min = pArray->GetNumberAt(0);
     t_max = pArray->GetNumberAt(1);
   }
-  FX_BOOL bStartExtend = FALSE, bEndExtend = FALSE;
+  FX_BOOL bStartExtend = FALSE;
+  FX_BOOL bEndExtend = FALSE;
   pArray = pDict->GetArrayFor("Extend");
   if (pArray) {
-    bStartExtend = pArray->GetIntegerAt(0);
-    bEndExtend = pArray->GetIntegerAt(1);
+    bStartExtend = !!pArray->GetIntegerAt(0);
+    bEndExtend = !!pArray->GetIntegerAt(1);
   }
   uint32_t total_results =
       std::max(CountOutputs(funcs), pCS->CountComponents());
diff --git a/core/fpdftext/cpdf_textpagefind.cpp b/core/fpdftext/cpdf_textpagefind.cpp
index 9ccfcea..1eb5c4e 100644
--- a/core/fpdftext/cpdf_textpagefind.cpp
+++ b/core/fpdftext/cpdf_textpagefind.cpp
@@ -101,7 +101,7 @@
     findwhatStr.MakeLower();
     m_strText.MakeLower();
   }
-  m_bMatchWholeWord = flags & FPDFTEXT_MATCHWHOLEWORD;
+  m_bMatchWholeWord = !!(flags & FPDFTEXT_MATCHWHOLEWORD);
   m_findNextStart = startPos;
   if (startPos == -1)
     m_findPreStart = m_strText.GetLength() - 1;
diff --git a/fpdfsdk/fpdfxfa/cpdfxfa_docenvironment.cpp b/fpdfsdk/fpdfxfa/cpdfxfa_docenvironment.cpp
index 2a2bb3c..a5efd50 100644
--- a/fpdfsdk/fpdfxfa/cpdfxfa_docenvironment.cpp
+++ b/fpdfsdk/fpdfxfa/cpdfxfa_docenvironment.cpp
@@ -919,7 +919,6 @@
     return FALSE;
   }
 
-  FPDF_BOOL bRet = TRUE;
   FPDF_FILEHANDLER* pFileHandler = nullptr;
   int fileFlag = -1;
   switch (submit.GetSubmitFormat()) {
@@ -966,11 +965,10 @@
     CFX_WideString csBCCAddress;
     CFX_WideString csSubject;
     CFX_WideString csMsg;
-    bRet = MailToInfo(csURL, csToAddress, csCCAddress, csBCCAddress, csSubject,
-                      csMsg);
-    if (!bRet)
+    if (!MailToInfo(csURL, csToAddress, csCCAddress, csBCCAddress, csSubject,
+                    csMsg)) {
       return FALSE;
-
+    }
     CFX_ByteString bsTo = CFX_WideString(csToAddress).UTF16LE_Encode();
     CFX_ByteString bsCC = CFX_WideString(csCCAddress).UTF16LE_Encode();
     CFX_ByteString bsBcc = CFX_WideString(csBCCAddress).UTF16LE_Encode();
@@ -997,7 +995,7 @@
                            (FPDF_WIDESTRING)bs.GetBuffer(len));
     bs.ReleaseBuffer(len);
   }
-  return bRet;
+  return TRUE;
 }
 
 FX_BOOL CPDFXFA_DocEnvironment::SetGlobalProperty(