VM initialization refactoring.

src/ia32/cpu-ia32.cc

Index: src/ia32/cpu-ia32.cc
diff --git a/src/ia32/cpu-ia32.cc b/src/ia32/cpu-ia32.cc
index 286ed7b80137255cab9c495614733bcc42413fba..2928045770dc416ff9ac7fa6683b22e428cc3602 100644
--- a/src/ia32/cpu-ia32.cc
+++ b/src/ia32/cpu-ia32.cc
@@ -42,12 +42,12 @@ namespace v8 {
 namespace internal {
 
 void CPU::Setup() {
-  CpuFeatures* cpu_features = Isolate::Current()->cpu_features();
-  cpu_features->Clear();
-  cpu_features->Probe(true);
-  if (!cpu_features->IsSupported(SSE2) || Serializer::enabled()) {
-    V8::DisableCrankshaft();
-  }
+  CpuFeatures::Probe(true);
+}
+
+
+bool CPU::SupportsCrankshaft() {
+  return CpuFeatures::IsSupported(SSE2);
 }