Move platform abstraction to base library

src/base/platform/platform-qnx.cc

 // Copyright 2013 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // Platform-specific code for QNX goes here. For the POSIX-compatible
 // parts the implementation is in platform-posix.cc.
 
 #include <backtrace.h>
 #include <pthread.h>
 #include <semaphore.h>
@@ skipping 13 matching lines @@
 #include <sys/mman.h>   // mmap & munmap
 #include <sys/procfs.h>
 #include <sys/stat.h>   // open
 #include <sys/types.h>  // mmap & munmap
 #include <unistd.h>     // sysconf
 
 #include <cmath>
 
 #undef MAP_TYPE
 
-#include "src/platform.h"
-#include "src/utils.h"
+#include "src/base/macros.h"
+#include "src/base/platform/platform.h"
 
 
 namespace v8 {
-namespace internal {
+namespace base {
 
 // 0 is never a valid thread id on Qnx since tids and pids share a
 // name space and pid 0 is reserved (see man 2 kill).
 static const pthread_t kNoThread = (pthread_t) 0;
 
 
 #ifdef __arm__
 
 bool OS::ArmUsingHardFloat() {
   // GCC versions 4.6 and above define __ARM_PCS or __ARM_PCS_VFP to specify
@@ skipping 314 matching lines @@
 
 bool VirtualMemory::ReleaseRegion(void* base, size_t size) {
   return munmap(base, size) == 0;
 }
 
 
 bool VirtualMemory::HasLazyCommits() {
   return false;
 }
 
-} }  // namespace v8::internal
+} }  // namespace v8::base