[turbofan] Cleanup use of virtual, OVERRIDE, FINAL.

src/compiler/graph-builder.h

 // Copyright 2013 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_COMPILER_GRAPH_BUILDER_H_
 #define V8_COMPILER_GRAPH_BUILDER_H_
 
 #include "src/v8.h"
 
 #include "src/allocation.h"
@@ skipping 68 matching lines @@
 };
 
 
 // The StructuredGraphBuilder produces a high-level IR graph. It is used as the
 // base class for concrete implementations (e.g the AstGraphBuilder or the
 // StubGraphBuilder).
 class StructuredGraphBuilder : public GraphBuilder {
  public:
   StructuredGraphBuilder(Zone* zone, Graph* graph,
                          CommonOperatorBuilder* common);
-  virtual ~StructuredGraphBuilder() {}
+  ~StructuredGraphBuilder() OVERRIDE {}
 
   // Creates a new Phi node having {count} input values.
   Node* NewPhi(int count, Node* input, Node* control);
   Node* NewEffectPhi(int count, Node* input, Node* control);
 
   // Helpers for merging control, effect or value dependencies.
   Node* MergeControl(Node* control, Node* other);
   Node* MergeEffect(Node* value, Node* other, Node* control);
   Node* MergeValue(Node* value, Node* other, Node* control);
 
   // Helpers to create new control nodes.
   Node* NewIfTrue() { return NewNode(common()->IfTrue()); }
   Node* NewIfFalse() { return NewNode(common()->IfFalse()); }
   Node* NewMerge() { return NewNode(common()->Merge(1), true); }
   Node* NewLoop() { return NewNode(common()->Loop(1), true); }
   Node* NewBranch(Node* condition, BranchHint hint = BranchHint::kNone) {
     return NewNode(common()->Branch(hint), condition);
   }
 
  protected:
   class Environment;
   friend class Environment;
   friend class ControlBuilder;
 
   // The following method creates a new node having the specified operator and
   // ensures effect and control dependencies are wired up. The dependencies
   // tracked by the environment might be mutated.
-  virtual Node* MakeNode(const Operator* op, int value_input_count,
-                         Node** value_inputs, bool incomplete) FINAL;
+  Node* MakeNode(const Operator* op, int value_input_count, Node** value_inputs,
+                 bool incomplete) FINAL;
 
   Environment* environment() const { return environment_; }
   void set_environment(Environment* env) { environment_ = env; }
 
   Node* current_context() const { return current_context_; }
   void set_current_context(Node* context) { current_context_ = context; }
 
   Node* exit_control() const { return exit_control_; }
   void set_exit_control(Node* node) { exit_control_ = node; }
 
@@ skipping 110 matching lines @@
   StructuredGraphBuilder* builder_;
   Node* control_dependency_;
   Node* effect_dependency_;
   NodeVector values_;
 };
 }
 }
 }  // namespace v8::internal::compiler
 
 #endif  // V8_COMPILER_GRAPH_BUILDER_H__