Simplify ColoredPrintf to rely on ShouldUseColor

Use ShouldUseColor to set use_color instead of having a separate check for the windows mobile cases; these cases are now moved directly to `DoIsATTY`

googletest/include/gtest/internal/gtest-port.h

@@ -1965,7 +1965,8 @@ inline int StrCaseCmp(const char* s1, const char* s2) {
 }
 inline char* StrDup(const char* src) { return strdup(src); }
 #else  // !__BORLANDC__
-#if GTEST_OS_WINDOWS_MOBILE
+#if GTEST_OS_WINDOWS_MOBILE || GTEST_OS_ZOS || GTEST_OS_IOS || \
+    GTEST_OS_WINDOWS_PHONE || GTEST_OS_WINDOWS_RT || defined(ESP_PLATFORM)
 inline int DoIsATTY(int /* fd */) { return 0; }
 #else
 inline int DoIsATTY(int fd) { return _isatty(fd); }

googletest/src/gtest.cc

@@ -3278,14 +3278,8 @@ static void ColoredPrintf(GTestColor color, const char* fmt, ...) {
   va_list args;
   va_start(args, fmt);
 
-#if GTEST_OS_WINDOWS_MOBILE || GTEST_OS_ZOS || GTEST_OS_IOS || \
-    GTEST_OS_WINDOWS_PHONE || GTEST_OS_WINDOWS_RT || defined(ESP_PLATFORM)
-  const bool use_color = AlwaysFalse();
-#else
-  static const bool in_color_mode =
-      ShouldUseColor(posix::IsATTY(posix::FileNo(stdout)) != 0);
+  static const bool in_color_mode = ShouldUseColor(posix::IsATTY(posix::FileNo(stdout)) != 0);
   const bool use_color = in_color_mode && (color != GTestColor::kDefault);
-#endif  // GTEST_OS_WINDOWS_MOBILE || GTEST_OS_ZOS
 
   if (!use_color) {
     vprintf(fmt, args);