Use Chrome compatible naming for compiler specifics.

src/hydrogen-gvn.cc

Index: src/hydrogen-gvn.cc
diff --git a/src/hydrogen-gvn.cc b/src/hydrogen-gvn.cc
index 794f51855e8122137eed6cc0f27318880e37683a..be1e17bb41c60da9c8cebd033ab879120abf3d7c 100644
--- a/src/hydrogen-gvn.cc
+++ b/src/hydrogen-gvn.cc
@@ -9,7 +9,7 @@
 namespace v8 {
 namespace internal {
 
-class HInstructionMap V8_FINAL : public ZoneObject {
+class HInstructionMap FINAL : public ZoneObject {
  public:
   HInstructionMap(Zone* zone, SideEffectsTracker* side_effects_tracker)
       : array_size_(0),
@@ -70,7 +70,7 @@ class HInstructionMap V8_FINAL : public ZoneObject {
 };
 
 
-class HSideEffectMap V8_FINAL BASE_EMBEDDED {
+class HSideEffectMap FINAL BASE_EMBEDDED {
  public:
   HSideEffectMap();
   explicit HSideEffectMap(HSideEffectMap* other);