diff --git a/core/fxcrt/cfx_datetime.cpp b/core/fxcrt/cfx_datetime.cpp
index a6d4636..c623397 100644
--- a/core/fxcrt/cfx_datetime.cpp
+++ b/core/fxcrt/cfx_datetime.cpp
@@ -92,9 +92,9 @@
 
 void CFX_DateTime::Now() {
   FXUT_SYSTEMTIME utLocal;
-#if _FX_OS_ == _FX_WIN32_DESKTOP_ || _FX_OS_ == _FX_WIN64_
+#if _FX_OS_ == _FX_WIN32_DESKTOP_ || _FX_OS_ == _FX_WIN64_DESKTOP_
   ::GetLocalTime((LPSYSTEMTIME)&utLocal);
-#elif _FX_OS_ != _FX_EMBEDDED_
+#else   // _FX_OS_ == _FX_WIN32_DESKTOP_ || _FX_OS_ == _FX_WIN64_DESKTOP_
   timeval curTime;
   gettimeofday(&curTime, nullptr);
 
@@ -108,7 +108,7 @@
   utLocal.wMinute = st.tm_min;
   utLocal.wSecond = st.tm_sec;
   utLocal.wMillisecond = curTime.tv_usec / 1000;
-#endif  // _FX_OS_ == _FX_WIN32_DESKTOP_ || _FX_OS_ == _FX_WIN64_
+#endif  // _FX_OS_ == _FX_WIN32_DESKTOP_ || _FX_OS_ == _FX_WIN64_DESKTOP_
 
   year_ = utLocal.wYear;
   month_ = static_cast<uint8_t>(utLocal.wMonth);
diff --git a/core/fxcrt/cfx_seekablestreamproxy.cpp b/core/fxcrt/cfx_seekablestreamproxy.cpp
index 611c3eb..24f7869 100644
--- a/core/fxcrt/cfx_seekablestreamproxy.cpp
+++ b/core/fxcrt/cfx_seekablestreamproxy.cpp
@@ -6,7 +6,7 @@
 
 #include "core/fxcrt/cfx_seekablestreamproxy.h"
 
-#if _FX_OS_ == _FX_WIN32_DESKTOP_ || _FX_OS_ == _FX_WIN64_
+#if _FX_OS_ == _FX_WIN32_DESKTOP_ || _FX_OS_ == _FX_WIN64_DESKTOP_
 #include <io.h>
 #endif
 
diff --git a/fxbarcode/utils.h b/fxbarcode/utils.h
index 7d5bc0a..6140dd0 100644
--- a/fxbarcode/utils.h
+++ b/fxbarcode/utils.h
@@ -19,25 +19,28 @@
 void BC_FX_ByteString_Append(ByteString& dst, int32_t count, char c);
 void BC_FX_ByteString_Append(ByteString& dst, const std::vector<uint8_t>& ba);
 
-#if (_FX_OS_ == _FX_WIN32_DESKTOP_ || _FX_OS_ == _FX_WIN64_)
+#if _FX_OS_ == _FX_WIN32_DESKTOP_ || _FX_OS_ == _FX_WIN64_DESKTOP_
 #include <limits>
-#elif(_FX_OS_ == _FX_MACOSX_ || _FX_OS_ == _FX_LINUX_DESKTOP_ || \
-      _FX_OS_ == _FX_IOS_)
+#elif _FX_OS_ == _FX_MACOSX_ || _FX_OS_ == _FX_LINUX_DESKTOP_ || \
+    _FX_OS_ == _FX_IOS_
 #include <limits.h>
 #endif
-#if (_FX_OS_ == _FX_WIN32_DESKTOP_ || _FX_OS_ == _FX_WIN64_)
+
+#if _FX_OS_ == _FX_WIN32_DESKTOP_ || _FX_OS_ == _FX_WIN64_DESKTOP_
 #define FXSYS_isnan(x) _isnan(x)
-#elif(_FX_OS_ == _FX_MACOSX_ || _FX_OS_ == _FX_IOS_ || \
-      _FX_OS_ == _FX_LINUX_DESKTOP_ || _FX_OS_ == _FX_ANDROID_)
+#elif _FX_OS_ == _FX_MACOSX_ || _FX_OS_ == _FX_IOS_ || \
+    _FX_OS_ == _FX_LINUX_DESKTOP_ || _FX_OS_ == _FX_ANDROID_
 #include <cmath>
 #define FXSYS_isnan(x) std::isnan(x)
 #endif
-#if (_FX_OS_ == _FX_WIN32_DESKTOP_ || _FX_OS_ == _FX_WIN64_)
+
+#if _FX_OS_ == _FX_WIN32_DESKTOP_ || _FX_OS_ == _FX_WIN64_DESKTOP_
 #define FXSYS_nan() (std::numeric_limits<float>::quiet_NaN())
-#elif(_FX_OS_ == _FX_MACOSX_ || _FX_OS_ == _FX_LINUX_DESKTOP_ || \
-      _FX_OS_ == _FX_IOS_ || _FX_OS_ == _FX_ANDROID_)
+#elif _FX_OS_ == _FX_MACOSX_ || _FX_OS_ == _FX_LINUX_DESKTOP_ || \
+    _FX_OS_ == _FX_IOS_ || _FX_OS_ == _FX_ANDROID_
 #define FXSYS_nan() NAN
 #endif
+
 enum BCFORMAT {
   BCFORMAT_UNSPECIFY = -1,
   BCFORMAT_CODABAR,
diff --git a/xfa/fwl/cfwl_notedriver.cpp b/xfa/fwl/cfwl_notedriver.cpp
index 364ef19..c0dba02 100644
--- a/xfa/fwl/cfwl_notedriver.cpp
+++ b/xfa/fwl/cfwl_notedriver.cpp
@@ -106,8 +106,8 @@
 }
 
 void CFWL_NoteDriver::Run() {
-#if (_FX_OS_ == _FX_LINUX_DESKTOP_ || _FX_OS_ == _FX_WIN32_DESKTOP_ || \
-     _FX_OS_ == _FX_WIN64_)
+#if _FX_OS_ == _FX_LINUX_DESKTOP_ || _FX_OS_ == _FX_WIN32_DESKTOP_ || \
+    _FX_OS_ == _FX_WIN64_DESKTOP_
   for (;;) {
     CFWL_NoteLoop* pTopLoop = GetTopLoop();
     if (!pTopLoop || !pTopLoop->ContinueModal())
diff --git a/xfa/fwl/cfwl_widgetmgr.cpp b/xfa/fwl/cfwl_widgetmgr.cpp
index a0f6e3a..1432c10 100644
--- a/xfa/fwl/cfwl_widgetmgr.cpp
+++ b/xfa/fwl/cfwl_widgetmgr.cpp
@@ -33,7 +33,7 @@
       m_pAdapter(pAdapterNative->GetFWLAdapterWidgetMgr()) {
   ASSERT(m_pAdapter);
   m_mapWidgetItem[nullptr] = pdfium::MakeUnique<Item>();
-#if (_FX_OS_ == _FX_WIN32_DESKTOP_) || (_FX_OS_ == _FX_WIN64_)
+#if _FX_OS_ == _FX_WIN32_DESKTOP_ || _FX_OS_ == _FX_WIN64_DESKTOP_
   m_rtScreen.Reset();
 #endif
 }
@@ -606,7 +606,7 @@
       pNext(nullptr),
       pWidget(widget),
       iRedrawCounter(0)
-#if (_FX_OS_ == _FX_WIN32_DESKTOP_) || (_FX_OS_ == _FX_WIN64_)
+#if _FX_OS_ == _FX_WIN32_DESKTOP_ || _FX_OS_ == _FX_WIN64_DESKTOP_
       ,
       bOutsideChanged(false)
 #endif
diff --git a/xfa/fwl/cfwl_widgetmgr.h b/xfa/fwl/cfwl_widgetmgr.h
index 6f6c39a..8707d3d 100644
--- a/xfa/fwl/cfwl_widgetmgr.h
+++ b/xfa/fwl/cfwl_widgetmgr.h
@@ -81,7 +81,7 @@
     CFWL_Widget* const pWidget;
     std::unique_ptr<CXFA_Graphics> pOffscreen;
     int32_t iRedrawCounter;
-#if (_FX_OS_ == _FX_WIN32_DESKTOP_) || (_FX_OS_ == _FX_WIN64_)
+#if _FX_OS_ == _FX_WIN32_DESKTOP_ || _FX_OS_ == _FX_WIN64_DESKTOP_
     bool bOutsideChanged;
 #endif
   };
@@ -114,7 +114,7 @@
   uint32_t m_dwCapability;
   std::map<CFWL_Widget*, std::unique_ptr<Item>> m_mapWidgetItem;
   UnownedPtr<CXFA_FWLAdapterWidgetMgr> const m_pAdapter;
-#if (_FX_OS_ == _FX_WIN32_DESKTOP_) || (_FX_OS_ == _FX_WIN64_)
+#if _FX_OS_ == _FX_WIN32_DESKTOP_ || _FX_OS_ == _FX_WIN64_DESKTOP_
   CFX_RectF m_rtScreen;
 #endif
 };