Switch to standard integer types in base/process/.

base/process/process_metrics_mac.cc

Index: base/process/process_metrics_mac.cc
diff --git a/base/process/process_metrics_mac.cc b/base/process/process_metrics_mac.cc
index 82acb0636b94bd941fd3861a05c0c4856a7f18c3..a8957e288dff29ebd6d9ac4ec3dc78d9b6c0198e 100644
--- a/base/process/process_metrics_mac.cc
+++ b/base/process/process_metrics_mac.cc
@@ -7,6 +7,8 @@
 #include <mach/mach.h>
 #include <mach/mach_vm.h>
 #include <mach/shared_region.h>
+#include <stddef.h>
+#include <stdint.h>
 #include <sys/sysctl.h>
 
 #include "base/containers/hash_tables.h"
@@ -284,7 +286,7 @@ double ProcessMetrics::GetCPUUsage() {
   timeradd(&system_timeval, &task_timeval, &task_timeval);
 
   TimeTicks time = TimeTicks::Now();
-  int64 task_time = TimeValToMicroseconds(task_timeval);
+  int64_t task_time = TimeValToMicroseconds(task_timeval);
 
   if (last_system_time_ == 0) {
     // First call, just set the last values.
@@ -293,8 +295,8 @@ double ProcessMetrics::GetCPUUsage() {
     return 0;
   }
 
-  int64 system_time_delta = task_time - last_system_time_;
-  int64 time_delta = (time - last_cpu_time_).InMicroseconds();
+  int64_t system_time_delta = task_time - last_system_time_;
+  int64_t time_delta = (time - last_cpu_time_).InMicroseconds();
   DCHECK_NE(0U, time_delta);
   if (time_delta == 0)
     return 0;