Unify some PlatformCodeStubs.

src/ia32/code-stubs-ia32.h

Index: src/ia32/code-stubs-ia32.h
diff --git a/src/ia32/code-stubs-ia32.h b/src/ia32/code-stubs-ia32.h
index 77be469d975cc6123022aea0dcbe141060051b2d..bc08cb0f6d7ed4346db163ad157cb6811a6c5df4 100644
--- a/src/ia32/code-stubs-ia32.h
+++ b/src/ia32/code-stubs-ia32.h
@@ -16,24 +16,6 @@ void ArrayNativeCode(MacroAssembler* masm,
                      Label* call_generic_code);
 
 
-class StoreBufferOverflowStub : public PlatformCodeStub {
- public:
-  StoreBufferOverflowStub(Isolate* isolate, SaveFPRegsMode save_fp)
-      : PlatformCodeStub(isolate), save_doubles_(save_fp) { }
-
-  void Generate(MacroAssembler* masm);
-
-  static void GenerateFixedRegStubsAheadOfTime(Isolate* isolate);
-  virtual bool SometimesSetsUpAFrame() { return false; }
-
- private:
-  SaveFPRegsMode save_doubles_;
-
-  Major MajorKey() const { return StoreBufferOverflow; }
-  uint32_t MinorKey() const { return (save_doubles_ == kSaveFPRegs) ? 1 : 0; }
-};
-
-
 class StringHelper : public AllStatic {
  public:
   // Generate code for copying characters using the rep movs instruction.
@@ -51,45 +33,24 @@ class StringHelper : public AllStatic {
                                Register hash,
                                Register character,
                                Register scratch);
+
   static void GenerateHashAddCharacter(MacroAssembler* masm,
                                        Register hash,
                                        Register character,
                                        Register scratch);
+
   static void GenerateHashGetHash(MacroAssembler* masm,
                                   Register hash,
                                   Register scratch);
 
- private:
-  DISALLOW_IMPLICIT_CONSTRUCTORS(StringHelper);
-};
-
-
-class SubStringStub: public PlatformCodeStub {
- public:
-  explicit SubStringStub(Isolate* isolate) : PlatformCodeStub(isolate) {}
-
- private:
-  Major MajorKey() const { return SubString; }
-  uint32_t MinorKey() const { return 0; }
-
-  void Generate(MacroAssembler* masm);
-};
-
-
-class StringCompareStub: public PlatformCodeStub {
- public:
-  explicit StringCompareStub(Isolate* isolate) : PlatformCodeStub(isolate) { }
-
   // Compares two flat ASCII strings and returns result in eax.
   static void GenerateCompareFlatAsciiStrings(MacroAssembler* masm,
-                                              Register left,
-                                              Register right,
+                                              Register left, Register right,
                                               Register scratch1,
                                               Register scratch2,
                                               Register scratch3);
 
-  // Compares two flat ASCII strings for equality and returns result
-  // in eax.
+  // Compares two flat ASCII strings for equality and returns result in eax.
   static void GenerateFlatAsciiStringEquals(MacroAssembler* masm,
                                             Register left,
                                             Register right,
@@ -97,10 +58,6 @@ class StringCompareStub: public PlatformCodeStub {
                                             Register scratch2);
 
  private:
-  virtual Major MajorKey() const { return StringCompare; }
-  virtual uint32_t MinorKey() const { return 0; }
-  virtual void Generate(MacroAssembler* masm);
-
   static void GenerateAsciiCharsCompareLoop(
       MacroAssembler* masm,
       Register left,
@@ -109,6 +66,8 @@ class StringCompareStub: public PlatformCodeStub {
       Register scratch,
       Label* chars_not_equal,
       Label::Distance chars_not_equal_near = Label::kFar);
+
+  DISALLOW_IMPLICIT_CONSTRUCTORS(StringHelper);
 };