Add copy and assignment to FundamentalValue and StringValue.

base/values.h

Index: base/values.h
diff --git a/base/values.h b/base/values.h
index 6b650052accf75d2e777e60e988526fbb609e078..e620483cb275757cf86259d43708b8da404a42b8 100644
--- a/base/values.h
+++ b/base/values.h
@@ -114,16 +114,13 @@ class BASE_EXPORT Value {
   static bool Equals(const Value* a, const Value* b);
 
  protected:
-  // This isn't safe for end-users (they should use the Create*Value()
-  // static methods above), but it's useful for subclasses.
+  // These aren't safe for end-users, but they are useful for subclasses.
   explicit Value(Type type);
+  Value(const Value& value);
+  void operator=(const Value& value);

[brettw, 2012/11/17 20:57:01]

This should return Value&

 
  private:
-  Value();
-
   Type type_;
-
-  DISALLOW_COPY_AND_ASSIGN(Value);
 };
 
 // FundamentalValue represents the simple fundamental types of values.
@@ -147,8 +144,6 @@ class BASE_EXPORT FundamentalValue : public Value {
     int integer_value_;
     double double_value_;
   };
-
-  DISALLOW_COPY_AND_ASSIGN(FundamentalValue);
 };
 
 class BASE_EXPORT StringValue : public Value {
@@ -169,8 +164,6 @@ class BASE_EXPORT StringValue : public Value {
 
  private:
   std::string value_;
-
-  DISALLOW_COPY_AND_ASSIGN(StringValue);
 };
 
 class BASE_EXPORT BinaryValue: public Value {