4 files changed, 16 insertions, 16 deletions

diff --git a/core/fpdfapi/page/cpdf_colorspace.cpp b/core/fpdfapi/page/cpdf_colorspace.cpp
index 3244319cc2..913c9c728d 100644
--- a/core/fpdfapi/page/cpdf_colorspace.cpp
+++ b/core/fpdfapi/page/cpdf_colorspace.cpp
@@ -265,7 +265,7 @@ class Matrix_3by3 {
 
   Matrix_3by3 Inverse() {
     float det = a * (e * i - f * h) - b * (i * d - f * g) + c * (d * h - e * g);
-    if (FXSYS_fabs(det) < std::numeric_limits<float>::epsilon())
+    if (fabs(det) < std::numeric_limits<float>::epsilon())
       return Matrix_3by3();
 
     return Matrix_3by3(
diff --git a/core/fpdfapi/page/cpdf_textstate.cpp b/core/fpdfapi/page/cpdf_textstate.cpp
index 520cb7365b..ed90bd310d 100644
--- a/core/fpdfapi/page/cpdf_textstate.cpp
+++ b/core/fpdfapi/page/cpdf_textstate.cpp
@@ -139,19 +139,19 @@ void CPDF_TextState::TextData::SetFont(CPDF_Font* pFont) {
 }
 
 float CPDF_TextState::TextData::GetFontSizeV() const {
-  return FXSYS_fabs(FXSYS_sqrt2(m_Matrix[1], m_Matrix[3]) * m_FontSize);
+  return fabs(FXSYS_sqrt2(m_Matrix[1], m_Matrix[3]) * m_FontSize);
 }
 
 float CPDF_TextState::TextData::GetFontSizeH() const {
-  return FXSYS_fabs(FXSYS_sqrt2(m_Matrix[0], m_Matrix[2]) * m_FontSize);
+  return fabs(FXSYS_sqrt2(m_Matrix[0], m_Matrix[2]) * m_FontSize);
 }
 
 float CPDF_TextState::TextData::GetBaselineAngle() const {
-  return FXSYS_atan2(m_Matrix[2], m_Matrix[0]);
+  return atan2(m_Matrix[2], m_Matrix[0]);
 }
 
 float CPDF_TextState::TextData::GetShearAngle() const {
-  return GetBaselineAngle() + FXSYS_atan2(m_Matrix[1], m_Matrix[3]);
+  return GetBaselineAngle() + atan2(m_Matrix[1], m_Matrix[3]);
 }
 
 bool SetTextRenderingModeFromInt(int iMode, TextRenderingMode* mode) {
diff --git a/core/fpdfapi/page/cpdf_tilingpattern.cpp b/core/fpdfapi/page/cpdf_tilingpattern.cpp
index fb46dd2b3e..a68b4423e5 100644
--- a/core/fpdfapi/page/cpdf_tilingpattern.cpp
+++ b/core/fpdfapi/page/cpdf_tilingpattern.cpp
@@ -41,8 +41,8 @@ bool CPDF_TilingPattern::Load() {
     return false;
 
   m_bColored = pDict->GetIntegerFor("PaintType") == 1;
-  m_XStep = (float)FXSYS_fabs(pDict->GetNumberFor("XStep"));
-  m_YStep = (float)FXSYS_fabs(pDict->GetNumberFor("YStep"));
+  m_XStep = (float)fabs(pDict->GetNumberFor("XStep"));
+  m_YStep = (float)fabs(pDict->GetNumberFor("YStep"));
 
   CPDF_Stream* pStream = m_pPatternObj->AsStream();
   if (!pStream)
diff --git a/core/fpdfapi/page/fpdf_page_func.cpp b/core/fpdfapi/page/fpdf_page_func.cpp
index 30f3b895d4..8ea4194eaa 100644
--- a/core/fpdfapi/page/fpdf_page_func.cpp
+++ b/core/fpdfapi/page/fpdf_page_func.cpp
@@ -289,15 +289,15 @@ bool CPDF_PSEngine::DoOperator(PDF_PSOP op) {
       break;
     case PSOP_ABS:
       d1 = Pop();
-      Push((float)FXSYS_fabs(d1));
+      Push((float)fabs(d1));
       break;
     case PSOP_CEILING:
       d1 = Pop();
-      Push((float)FXSYS_ceil(d1));
+      Push((float)ceil(d1));
       break;
     case PSOP_FLOOR:
       d1 = Pop();
-      Push((float)FXSYS_floor(d1));
+      Push((float)floor(d1));
       break;
     case PSOP_ROUND:
       d1 = Pop();
@@ -309,20 +309,20 @@ bool CPDF_PSEngine::DoOperator(PDF_PSOP op) {
       break;
     case PSOP_SQRT:
       d1 = Pop();
-      Push((float)FXSYS_sqrt(d1));
+      Push((float)sqrt(d1));
       break;
     case PSOP_SIN:
       d1 = Pop();
-      Push((float)FXSYS_sin(d1 * FX_PI / 180.0f));
+      Push((float)sin(d1 * FX_PI / 180.0f));
       break;
     case PSOP_COS:
       d1 = Pop();
-      Push((float)FXSYS_cos(d1 * FX_PI / 180.0f));
+      Push((float)cos(d1 * FX_PI / 180.0f));
       break;
     case PSOP_ATAN:
       d2 = Pop();
       d1 = Pop();
-      d1 = (float)(FXSYS_atan2(d1, d2) * 180.0 / FX_PI);
+      d1 = (float)(atan2(d1, d2) * 180.0 / FX_PI);
       if (d1 < 0) {
         d1 += 360;
       }
@@ -335,11 +335,11 @@ bool CPDF_PSEngine::DoOperator(PDF_PSOP op) {
       break;
     case PSOP_LN:
       d1 = Pop();
-      Push((float)FXSYS_log(d1));
+      Push((float)log(d1));
       break;
     case PSOP_LOG:
       d1 = Pop();
-      Push((float)FXSYS_log10(d1));
+      Push((float)log10(d1));
       break;
     case PSOP_CVI:
       i1 = (int)Pop();