Simplified CPU/CpuFeatures a bit.

src/mips/assembler-mips.h

Index: src/mips/assembler-mips.h
diff --git a/src/mips/assembler-mips.h b/src/mips/assembler-mips.h
index e4729b2dd428a239670aaa317d7ccc2f37e8239a..8c186c14b0d7258175c35ff611b476d19f121925 100644
--- a/src/mips/assembler-mips.h
+++ b/src/mips/assembler-mips.h
@@ -425,12 +425,10 @@ class CpuFeatures : public AllStatic {
  public:
   // Detect features of the target CPU. Set safe defaults if the serializer
   // is enabled (snapshots must be portable).
-  static void Probe();
+  static void Probe(bool serializer_enabled);
 
   // A special case for printing target and features, which we want to do
   // before initializing the isolate
-  static void SetHintCreatingSnapshot();
-  static void ProbeWithoutIsolate();
 
   // Check whether a feature is supported by the target CPU.
   static bool IsSupported(CpuFeature f) {
@@ -459,10 +457,9 @@ class CpuFeatures : public AllStatic {
            (cross_compile_ & mask) == mask;
   }
 
- private:
-  static void Probe(bool serializer_enabled);
-  static bool hint_creating_snapshot_;
+  static bool SupportsCrankshaft() { return CpuFeatures::IsSupported(FPU); }
 
+ private:
   static bool Check(CpuFeature f, unsigned set) {
     return (set & flag2set(f)) != 0;
   }