Replace OVERRIDE->override and FINAL->final since we now require C++11.

src/ppc/lithium-codegen-ppc.h

Index: src/ppc/lithium-codegen-ppc.h
diff --git a/src/ppc/lithium-codegen-ppc.h b/src/ppc/lithium-codegen-ppc.h
index 7da125396e0f76a9072817c88f51c38b5f77bc0c..248792f06031adfafde7332b84148d07a4056b8c 100644
--- a/src/ppc/lithium-codegen-ppc.h
+++ b/src/ppc/lithium-codegen-ppc.h
@@ -157,7 +157,7 @@ class LCodeGen : public LCodeGenBase {
 
   // Code generation passes.  Returns true if code generation should
   // continue.
-  void GenerateBodyInstructionPre(LInstruction* instr) OVERRIDE;
+  void GenerateBodyInstructionPre(LInstruction* instr) override;
   bool GeneratePrologue();
   bool GenerateDeferredCode();
   bool GenerateJumpTable();
@@ -235,7 +235,7 @@ class LCodeGen : public LCodeGenBase {
   void RecordSafepointWithRegisters(LPointerMap* pointers, int arguments,
                                     Safepoint::DeoptMode mode);
 
-  void RecordAndWritePosition(int position) OVERRIDE;
+  void RecordAndWritePosition(int position) override;
 
   static Condition TokenToCondition(Token::Value op);
   void EmitGoto(int block);
@@ -276,7 +276,7 @@ class LCodeGen : public LCodeGenBase {
   void EmitDeepCopy(Handle<JSObject> object, Register result, Register source,
                     int* offset, AllocationSiteMode mode);
 
-  void EnsureSpaceForLazyDeopt(int space_needed) OVERRIDE;
+  void EnsureSpaceForLazyDeopt(int space_needed) override;
   void DoLoadKeyedExternalArray(LLoadKeyed* instr);
   void DoLoadKeyedFixedDoubleArray(LLoadKeyed* instr);
   void DoLoadKeyedFixedArray(LLoadKeyed* instr);
@@ -306,7 +306,7 @@ class LCodeGen : public LCodeGenBase {
 
   Safepoint::Kind expected_safepoint_kind_;
 
-  class PushSafepointRegistersScope FINAL BASE_EMBEDDED {
+  class PushSafepointRegistersScope final BASE_EMBEDDED {
    public:
     explicit PushSafepointRegistersScope(LCodeGen* codegen)
         : codegen_(codegen) {