Use Chrome compatible naming for compiler specifics.

src/compiler/phi-reducer.h

Index: src/compiler/phi-reducer.h
diff --git a/src/compiler/phi-reducer.h b/src/compiler/phi-reducer.h
index a9b1450431151b94aaf4cb2cfc7c570c49890e43..5870d0433f815fed265a8fd60ae56cf916824c41 100644
--- a/src/compiler/phi-reducer.h
+++ b/src/compiler/phi-reducer.h
@@ -12,9 +12,9 @@ namespace internal {
 namespace compiler {
 
 // Replaces redundant phis if all the inputs are the same or the phi itself.
-class PhiReducer V8_FINAL : public Reducer {
+class PhiReducer FINAL : public Reducer {
  public:
-  virtual Reduction Reduce(Node* node) V8_OVERRIDE {
+  virtual Reduction Reduce(Node* node) OVERRIDE {
     if (node->opcode() != IrOpcode::kPhi &&
         node->opcode() != IrOpcode::kEffectPhi)
       return NoChange();