Move platform abstraction to base library

src/v8.cc

 // Copyright 2012 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.
 
 #include "src/v8.h"
 
 #include "src/assembler.h"
 #include "src/base/once.h"
+#include "src/base/platform/platform.h"
 #include "src/bootstrapper.h"
 #include "src/debug.h"
 #include "src/deoptimizer.h"
 #include "src/elements.h"
 #include "src/frames.h"
 #include "src/heap-profiler.h"
 #include "src/hydrogen.h"
 #include "src/isolate.h"
 #ifdef V8_USE_DEFAULT_PLATFORM
 #include "src/libplatform/default-platform.h"
 #endif
 #include "src/lithium-allocator.h"
 #include "src/objects.h"
-#include "src/platform.h"
 #include "src/runtime-profiler.h"
 #include "src/sampler.h"
 #include "src/serialize.h"
 #include "src/store-buffer.h"
 
 namespace v8 {
 namespace internal {
 
 V8_DECLARE_ONCE(init_once);
 
@@ skipping 50 matching lines @@
     // Avoid random seeds in predictable mode.
     FLAG_random_seed = 12347;
   }
 
   if (FLAG_stress_compaction) {
     FLAG_force_marking_deque_overflows = true;
     FLAG_gc_global = true;
     FLAG_max_semi_space_size = 1;
   }
 
-  OS::Initialize(FLAG_random_seed, FLAG_hard_abort, FLAG_gc_fake_mmap);
+  base::OS::Initialize(FLAG_random_seed, FLAG_hard_abort, FLAG_gc_fake_mmap);
 
 #ifdef V8_USE_DEFAULT_PLATFORM
   platform_ = new DefaultPlatform;
 #endif
   Sampler::SetUp();
   CpuFeatures::Probe(false);
   init_memcopy_functions();
   // The custom exp implementation needs 16KB of lookup data; initialize it
   // on demand.
   init_fast_sqrt_function();
@@ skipping 25 matching lines @@
   platform_ = NULL;
 }
 
 
 v8::Platform* V8::GetCurrentPlatform() {
   ASSERT(platform_);
   return platform_;
 }
 
 } }  // namespace v8::internal