Remove WTF_ATTRIBUTE_PRINTF.

third_party/WebKit/Source/wtf/Assertions.h

Index: third_party/WebKit/Source/wtf/Assertions.h
diff --git a/third_party/WebKit/Source/wtf/Assertions.h b/third_party/WebKit/Source/wtf/Assertions.h
index 6305cf8203b7b667badde3015e647eaceda4b986..28af93a08d25f87328a1a5c4eaa00b164651dfd6 100644
--- a/third_party/WebKit/Source/wtf/Assertions.h
+++ b/third_party/WebKit/Source/wtf/Assertions.h
@@ -60,13 +60,6 @@
 #define LOG_DISABLED !ENABLE(ASSERT)
 #endif
 
-#if COMPILER(GCC)
-#define WTF_ATTRIBUTE_PRINTF(formatStringArgument, extraArguments) \
-  __attribute__((__format__(printf, formatStringArgument, extraArguments)))
-#else
-#define WTF_ATTRIBUTE_PRINTF(formatStringArgument, extraArguments)
-#endif
-
 // These helper functions are always declared, but not necessarily always
 // defined if the corresponding function is disabled.
 
@@ -75,8 +68,7 @@ WTF_EXPORT void WTFReportAssertionFailure(const char* file,
                                           const char* function,
                                           const char* assertion);
 // WTFLogAlways() is deprecated. crbug.com/638849
-WTF_EXPORT void WTFLogAlways(const char* format, ...)
-    WTF_ATTRIBUTE_PRINTF(1, 2);
+WTF_EXPORT PRINTF_FORMAT(1, 2) void WTFLogAlways(const char* format, ...);
 WTF_EXPORT void WTFReportBacktrace(int framesToShow = 31);
 
 namespace WTF {
@@ -103,10 +95,9 @@ class WTF_EXPORT ScopedLogger {
   // The first message is passed to the constructor.  Additional messages for
   // the same scope can be added with log(). If condition is false, produce no
   // output and do not create a scope.
-  ScopedLogger(bool condition, const char* format, ...)
-      WTF_ATTRIBUTE_PRINTF(3, 4);
+  PRINTF_FORMAT(3, 4) ScopedLogger(bool condition, const char* format, ...);
   ~ScopedLogger();
-  void log(const char* format, ...) WTF_ATTRIBUTE_PRINTF(2, 3);
+  PRINTF_FORMAT(2, 3) void log(const char* format, ...);
 
  private:
   FRIEND_TEST_ALL_PREFIXES(AssertionsTest, ScopedLogger);