CodeCleanup: eliminate unnecessary base class and make the children unvirtual.

src/deoptimizer.h

Index: src/deoptimizer.h
diff --git a/src/deoptimizer.h b/src/deoptimizer.h
index b177873a7c22c7988010ab25d23c155ff608204f..fd65e83dd2683acfb4c2a6f325364189f5fff863 100644
--- a/src/deoptimizer.h
+++ b/src/deoptimizer.h
@@ -322,11 +322,10 @@ class Deoptimizer : public Malloced {
   static const int kNotDeoptimizationEntry = -1;
 
   // Generators for the deoptimization entry code.
-  class EntryGenerator BASE_EMBEDDED {
+  class TableEntryGenerator BASE_EMBEDDED {
    public:
-    EntryGenerator(MacroAssembler* masm, BailoutType type)
-        : masm_(masm), type_(type) { }
-    virtual ~EntryGenerator() { }
+    TableEntryGenerator(MacroAssembler* masm, BailoutType type, int count)
+        : masm_(masm), type_(type), count_(count) {}
 
     void Generate();
 
@@ -335,24 +334,13 @@ class Deoptimizer : public Malloced {
     BailoutType type() const { return type_; }
     Isolate* isolate() const { return masm_->isolate(); }
 
-    virtual void GeneratePrologue() { }
-
-   private:
-    MacroAssembler* masm_;
-    Deoptimizer::BailoutType type_;
-  };
-
-  class TableEntryGenerator : public EntryGenerator {
-   public:
-    TableEntryGenerator(MacroAssembler* masm, BailoutType type,  int count)
-        : EntryGenerator(masm, type), count_(count) { }
-
-   protected:
-    virtual void GeneratePrologue();
+    void GeneratePrologue();
 
    private:
     int count() const { return count_; }
 
+    MacroAssembler* masm_;
+    Deoptimizer::BailoutType type_;
     int count_;
   };