Attempt at enabling profiler

runtime/platform/thread_macos.cc

Index: runtime/platform/thread_macos.cc
diff --git a/runtime/platform/thread_macos.cc b/runtime/platform/thread_macos.cc
index 8d4445d15c5e4baee3347e7d1a33fa60b6b1f3df..c4167d43c4cacb843ef653195cb4e4fe25db18e5 100644
--- a/runtime/platform/thread_macos.cc
+++ b/runtime/platform/thread_macos.cc
@@ -145,17 +145,22 @@ ThreadId Thread::GetCurrentThreadId() {
 void Thread::GetThreadCpuUsage(ThreadId thread_id, int64_t* cpu_usage) {
   ASSERT(thread_id == GetCurrentThreadId());
   ASSERT(cpu_usage != NULL);
-  mach_msg_type_number_t count = THREAD_BASIC_INFO_COUNT;
-  thread_basic_info_data_t info_data;
-  thread_basic_info_t info = &info_data;
-  mach_port_t thread_port = mach_thread_self();
-  kern_return_t r = thread_info(thread_port, THREAD_BASIC_INFO,
-                                (thread_info_t)info, &count);
-  mach_port_deallocate(mach_task_self(), thread_port);
-  if (r == KERN_SUCCESS) {
-    *cpu_usage = (info->user_time.seconds * kMicrosecondsPerSecond) +
-                 info->user_time.microseconds;
-    return;
+  // TODO(johnmccutchan): Enable this after fixing issue with macos directory
+  // watcher.
+  const bool get_cpu_usage = false;
+  if (get_cpu_usage) {
+    mach_msg_type_number_t count = THREAD_BASIC_INFO_COUNT;
+    thread_basic_info_data_t info_data;
+    thread_basic_info_t info = &info_data;
+    mach_port_t thread_port = mach_thread_self();
+    kern_return_t r = thread_info(thread_port, THREAD_BASIC_INFO,
+                                  (thread_info_t)info, &count);
+    mach_port_deallocate(mach_task_self(), thread_port);
+    if (r == KERN_SUCCESS) {
+      *cpu_usage = (info->user_time.seconds * kMicrosecondsPerSecond) +
+                   info->user_time.microseconds;
+      return;
+    }
   }
   *cpu_usage = 0;
 }