Move atomic ops and related files to base library

src/mark-compact.cc

Index: src/mark-compact.cc
diff --git a/src/mark-compact.cc b/src/mark-compact.cc
index acbf90423c912320edadab3ae8834b99b836ac8a..61b1b54c7bd13c95acfe0b71f262e9dd6860c15f 100644
--- a/src/mark-compact.cc
+++ b/src/mark-compact.cc
@@ -4,6 +4,7 @@
 
 #include "src/v8.h"
 
+#include "src/base/atomicops.h"
 #include "src/code-stubs.h"
 #include "src/compilation-cache.h"
 #include "src/cpu-profiler.h"
@@ -2972,20 +2973,20 @@ static void UpdatePointer(HeapObject** address, HeapObject* object) {
   // compare and swap may fail in the case where the pointer update tries to
   // update garbage memory which was concurrently accessed by the sweeper.
   if (new_addr != NULL) {
-    NoBarrier_CompareAndSwap(
-        reinterpret_cast<AtomicWord*>(address),
-        reinterpret_cast<AtomicWord>(object),
-        reinterpret_cast<AtomicWord>(HeapObject::FromAddress(new_addr)));
+    base::NoBarrier_CompareAndSwap(
+        reinterpret_cast<base::AtomicWord*>(address),
+        reinterpret_cast<base::AtomicWord>(object),
+        reinterpret_cast<base::AtomicWord>(HeapObject::FromAddress(new_addr)));
   } else {
     // We have to zap this pointer, because the store buffer may overflow later,
     // and then we have to scan the entire heap and we don't want to find
     // spurious newspace pointers in the old space.
     // TODO(mstarzinger): This was changed to a sentinel value to track down
     // rare crashes, change it back to Smi::FromInt(0) later.
-    NoBarrier_CompareAndSwap(
-        reinterpret_cast<AtomicWord*>(address),
-        reinterpret_cast<AtomicWord>(object),
-        reinterpret_cast<AtomicWord>(Smi::FromInt(0x0f100d00 >> 1)));
+    base::NoBarrier_CompareAndSwap(
+        reinterpret_cast<base::AtomicWord*>(address),
+        reinterpret_cast<base::AtomicWord>(object),
+        reinterpret_cast<base::AtomicWord>(Smi::FromInt(0x0f100d00 >> 1)));
   }
 }