Move atomic-utils.h into base/

src/profiler/cpu-profiler.h

Index: src/profiler/cpu-profiler.h
diff --git a/src/profiler/cpu-profiler.h b/src/profiler/cpu-profiler.h
index fb80c268b55a935ac531c86ec851aeb8b40784b0..959c52a6519a10e955a0f81102a64f744587be61 100644
--- a/src/profiler/cpu-profiler.h
+++ b/src/profiler/cpu-profiler.h
@@ -6,7 +6,7 @@
 #define V8_PROFILER_CPU_PROFILER_H_
 
 #include "src/allocation.h"
-#include "src/atomic-utils.h"
+#include "src/base/atomic-utils.h"
 #include "src/base/atomicops.h"
 #include "src/base/platform/time.h"
 #include "src/compiler.h"
@@ -176,7 +176,7 @@ class ProfilerEventsProcessor : public base::Thread {
   SamplingCircularQueue<TickSampleEventRecord,
                         kTickSampleQueueLength> ticks_buffer_;
   LockedQueue<TickSampleEventRecord> ticks_from_vm_buffer_;
-  AtomicNumber<unsigned> last_code_event_id_;
+  base::AtomicNumber<unsigned> last_code_event_id_;
   unsigned last_processed_code_event_id_;
 };