Change DCHECK_IS_ON() to DCHECK_IS_ON

base/logging.h

Index: base/logging.h
diff --git a/base/logging.h b/base/logging.h
index b1f1ebd1d282db06fd5587eaf581005a386c0226..8a268faec5fb4c7f19a92a6bc71ac3dcbeb06880 100644
--- a/base/logging.h
+++ b/base/logging.h
@@ -575,9 +575,9 @@ DEFINE_CHECK_OP_IMPL(GT, > )
 #endif
 
 #if defined(NDEBUG) && !defined(DCHECK_ALWAYS_ON)
-#define ENABLE_DCHECK 0
+#define DCHECK_IS_ON 0
 #else
-#define ENABLE_DCHECK 1
+#define DCHECK_IS_ON 1
 #endif
 
 // Definitions for DLOG et al.
@@ -642,44 +642,40 @@ enum { DEBUG_MODE = ENABLE_DLOG };
 
 // Definitions for DCHECK et al.
 
-#if ENABLE_DCHECK
+#if DCHECK_IS_ON
 
 #define COMPACT_GOOGLE_LOG_EX_DCHECK(ClassName, ...) \
   COMPACT_GOOGLE_LOG_EX_FATAL(ClassName , ##__VA_ARGS__)
 #define COMPACT_GOOGLE_LOG_DCHECK COMPACT_GOOGLE_LOG_FATAL
 const LogSeverity LOG_DCHECK = LOG_FATAL;
-#define DCHECK_IS_ON() true
 
-#else  // ENABLE_DCHECK
+#else  // DCHECK_IS_ON
 
-// These are just dummy values since DCHECK_IS_ON() is always false in
-// this case.
+// These are just dummy values.
 #define COMPACT_GOOGLE_LOG_EX_DCHECK(ClassName, ...) \
   COMPACT_GOOGLE_LOG_EX_INFO(ClassName , ##__VA_ARGS__)
 #define COMPACT_GOOGLE_LOG_DCHECK COMPACT_GOOGLE_LOG_INFO
 const LogSeverity LOG_DCHECK = LOG_INFO;
-#define DCHECK_IS_ON() false
 
-#endif  // ENABLE_DCHECK
-#undef ENABLE_DCHECK
+#endif  // DCHECK_IS_ON
 
 // DCHECK et al. make sure to reference |condition| regardless of
 // whether DCHECKs are enabled; this is so that we don't get unused
 // variable warnings if the only use of a variable is in a DCHECK.
 // This behavior is different from DLOG_IF et al.
 
-#define DCHECK(condition)                                           \
-  LAZY_STREAM(LOG_STREAM(DCHECK), DCHECK_IS_ON() && !(condition))   \
+#define DCHECK(condition)                                         \
+  LAZY_STREAM(LOG_STREAM(DCHECK), DCHECK_IS_ON && !(condition))   \
   << "Check failed: " #condition ". "
 
-#define DPCHECK(condition)                                          \
-  LAZY_STREAM(PLOG_STREAM(DCHECK), DCHECK_IS_ON() && !(condition))  \
+#define DPCHECK(condition)                                        \
+  LAZY_STREAM(PLOG_STREAM(DCHECK), DCHECK_IS_ON && !(condition))  \
   << "Check failed: " #condition ". "
 
 // Helper macro for binary operators.
 // Don't use this macro directly in your code, use DCHECK_EQ et al below.
 #define DCHECK_OP(name, op, val1, val2)                         \
-  if (DCHECK_IS_ON())                                           \
+  if (DCHECK_IS_ON)                                             \
     if (std::string* _result =                                  \
         logging::Check##name##Impl((val1), (val2),              \
                                    #val1 " " #op " " #val2))    \