Use the new ScopedMachVM class and the MACH_LOG family of logging macros

base/mac/mach_logging.h

Index: base/mac/mach_logging.h
diff --git a/base/mac/mach_logging.h b/base/mac/mach_logging.h
index 589dde20173de9f99591a13aaf8088a40b7c0364..dcbaa7cf8f7ed5fa1f8eef4a21c0fcaae04cf14d 100644
--- a/base/mac/mach_logging.h
+++ b/base/mac/mach_logging.h
@@ -61,6 +61,12 @@ class BootstrapLogMessage : public logging::LogMessage {
 
 }  // namespace logging
 
+#if defined(NDEBUG)
+#define MACH_DVLOG_IS_ON(verbose_level) 0
+#else
+#define MACH_DVLOG_IS_ON(verbose_level) VLOG_IS_ON(verbose_level)
+#endif
+
 #define MACH_LOG_STREAM(severity, mach_err) \
     COMPACT_GOOGLE_LOG_EX_ ## severity(MachLogMessage, mach_err).stream()
 #define MACH_VLOG_STREAM(verbose_level, mach_err) \
@@ -92,16 +98,18 @@ class BootstrapLogMessage : public logging::LogMessage {
 
 #define MACH_DVLOG(verbose_level, mach_err) \
     LAZY_STREAM(MACH_VLOG_STREAM(verbose_level, mach_err), \
-                DVLOG_IS_ON(verbose_level))
+                MACH_DVLOG_IS_ON(verbose_level))
 #define MACH_DVLOG_IF(verbose_level, condition, mach_err) \
-    LAZY_STREAM(MACH_VLOG_STREAM(verbose_level, mach_err) \
-                DVLOG_IS_ON(verbose_level) && (condition))
+    LAZY_STREAM(MACH_VLOG_STREAM(verbose_level, mach_err), \
+                MACH_DVLOG_IS_ON(verbose_level) && (condition))
 
 #define MACH_DCHECK(condition, mach_err) \
     LAZY_STREAM(MACH_LOG_STREAM(FATAL, mach_err), \
                 DCHECK_IS_ON && !(condition)) \
     << "Check failed: " # condition << ". "
 
+#define BOOTSTRAP_DVLOG_IS_ON MACH_DVLOG_IS_ON
+
 #define BOOTSTRAP_LOG_STREAM(severity, bootstrap_err) \
     COMPACT_GOOGLE_LOG_EX_ ## severity(BootstrapLogMessage, \
                                        bootstrap_err).stream()
@@ -136,10 +144,10 @@ class BootstrapLogMessage : public logging::LogMessage {
 
 #define BOOTSTRAP_DVLOG(verbose_level, bootstrap_err) \
     LAZY_STREAM(BOOTSTRAP_VLOG_STREAM(verbose_level, bootstrap_err), \
-                DVLOG_IS_ON(verbose_level))
+                BOOTSTRAP_DVLOG_IS_ON(verbose_level))
 #define BOOTSTRAP_DVLOG_IF(verbose_level, condition, bootstrap_err) \
-    LAZY_STREAM(BOOTSTRAP_VLOG_STREAM(verbose_level, bootstrap_err) \
-                DVLOG_IS_ON(verbose_level) && (condition))
+    LAZY_STREAM(BOOTSTRAP_VLOG_STREAM(verbose_level, bootstrap_err), \
+                BOOTSTRAP_DVLOG_IS_ON(verbose_level) && (condition))
 
 #define BOOTSTRAP_DCHECK(condition, bootstrap_err) \
     LAZY_STREAM(BOOTSTRAP_LOG_STREAM(FATAL, bootstrap_err), \