Revert "[Arguments] Merge (7442,7496] from bleeding_edge."

src/arm/cpu-arm.cc

Index: src/arm/cpu-arm.cc
diff --git a/src/arm/cpu-arm.cc b/src/arm/cpu-arm.cc
index 5bd20291c8a30c3708de3e2fd483f42d93363efd..0f5bf56b54dd3b05b0338d2f31ddbfd7c40a1c3c 100644
--- a/src/arm/cpu-arm.cc
+++ b/src/arm/cpu-arm.cc
@@ -42,12 +42,11 @@ namespace v8 {
 namespace internal {
 
 void CPU::Setup() {
-  CpuFeatures::Probe();
-}
-
-
-bool CPU::SupportsCrankshaft() {
-  return CpuFeatures::IsSupported(VFP3);
+  CpuFeatures* cpu_features = Isolate::Current()->cpu_features();
+  cpu_features->Probe(true);
+  if (!cpu_features->IsSupported(VFP3) || Serializer::enabled()) {
+    V8::DisableCrankshaft();
+  }
 }