Remove unsafe registry APIs from base::win::RegKey

base/win/registry.h

Index: base/win/registry.h
diff --git a/base/win/registry.h b/base/win/registry.h
index 9acbea2995eaf42d91cda0602095196937ffbf3e..f7da63175e8371cc91ce98e1c1c2c809ba77b9b2 100644
--- a/base/win/registry.h
+++ b/base/win/registry.h
@@ -33,10 +33,13 @@ class BASE_EXPORT RegKey {
   typedef base::Callback<void()> ChangeCallback;
 
   RegKey();
-  explicit RegKey(HKEY key);
+  explicit RegKey(HKEY rootkey);
   RegKey(HKEY rootkey, const wchar_t* subkey, REGSAM access);
   ~RegKey();
 
+  RegKey(RegKey&&);
+  RegKey& operator=(RegKey&&);
+
   LONG Create(HKEY rootkey, const wchar_t* subkey, REGSAM access);
 
   LONG CreateWithDisposition(HKEY rootkey, const wchar_t* subkey,
@@ -54,12 +57,6 @@ class BASE_EXPORT RegKey {
   // Closes this reg key.
   void Close();
 
-  // Replaces the handle of the registry key and takes ownership of the handle.
-  void Set(HKEY key);
-
-  // Transfers ownership away from this object.
-  HKEY Take();
-
   // Returns false if this key does not have the specified value, or if an error
   // occurrs while attempting to access it.
   bool HasValue(const wchar_t* value_name) const;