Consistently use only one of virtual/OVERRIDE/FINAL.

src/mips64/code-stubs-mips64.h

Index: src/mips64/code-stubs-mips64.h
diff --git a/src/mips64/code-stubs-mips64.h b/src/mips64/code-stubs-mips64.h
index 3cd6ed6a2d8278f582b1f1abf8c34bae0fcc50ea..edc1bd2c16310aa9955b6de0e4f2e8f98a41a8d2 100644
--- a/src/mips64/code-stubs-mips64.h
+++ b/src/mips64/code-stubs-mips64.h
@@ -102,7 +102,7 @@ class RecordWriteStub: public PlatformCodeStub {
     INCREMENTAL_COMPACTION
   };
 
-  virtual bool SometimesSetsUpAFrame() { return false; }
+  bool SometimesSetsUpAFrame() OVERRIDE { return false; }
 
   static void PatchBranchIntoNop(MacroAssembler* masm, int pos) {
     const unsigned offset = masm->instr_at(pos) & kImm16Mask;
@@ -229,9 +229,9 @@ class RecordWriteStub: public PlatformCodeStub {
     kUpdateRememberedSetOnNoNeedToInformIncrementalMarker
   };
 
-  virtual inline Major MajorKey() const FINAL OVERRIDE { return RecordWrite; }
+  inline Major MajorKey() const FINAL { return RecordWrite; }
 
-  virtual void Generate(MacroAssembler* masm) OVERRIDE;
+  void Generate(MacroAssembler* masm) OVERRIDE;
   void GenerateIncremental(MacroAssembler* masm, Mode mode);
   void CheckNeedsToInformIncrementalMarker(
       MacroAssembler* masm,
@@ -239,7 +239,7 @@ class RecordWriteStub: public PlatformCodeStub {
       Mode mode);
   void InformIncrementalMarker(MacroAssembler* masm);
 
-  void Activate(Code* code) {
+  void Activate(Code* code) OVERRIDE {
     code->GetHeap()->incremental_marking()->ActivateGeneratedStub(code);
   }
 
@@ -287,7 +287,7 @@ class DirectCEntryStub: public PlatformCodeStub {
   void GenerateCall(MacroAssembler* masm, Register target);
 
  private:
-  bool NeedsImmovableCode() { return true; }
+  bool NeedsImmovableCode() OVERRIDE { return true; }
 
   DEFINE_NULL_CALL_INTERFACE_DESCRIPTOR();
   DEFINE_PLATFORM_CODE_STUB(DirectCEntry, PlatformCodeStub);
@@ -319,7 +319,7 @@ class NameDictionaryLookupStub: public PlatformCodeStub {
                                      Register r0,
                                      Register r1);
 
-  virtual bool SometimesSetsUpAFrame() { return false; }
+  bool SometimesSetsUpAFrame() OVERRIDE { return false; }
 
  private:
   static const int kInlinedProbes = 4;