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

src/compiler/instruction-selector-impl.h

Index: src/compiler/instruction-selector-impl.h
diff --git a/src/compiler/instruction-selector-impl.h b/src/compiler/instruction-selector-impl.h
index 79d3c5783858e65121f239bb69aa2c546ed264be..f4acfa0ba972393aa20a8b46a5ebd02fe23bdbca 100644
--- a/src/compiler/instruction-selector-impl.h
+++ b/src/compiler/instruction-selector-impl.h
@@ -243,7 +243,7 @@ class OperandGenerator {
 // The whole instruction is treated as a unit by the register allocator, and
 // thus no spills or moves can be introduced between the flags-setting
 // instruction and the branch or set it should be combined with.
-class FlagsContinuation FINAL {
+class FlagsContinuation final {
  public:
   FlagsContinuation() : mode_(kFlags_none) {}