Fix scoped_cftyperef<>::reset() to adopt the incoming CFTypeRef when the

existing stored pointer is NULL.
Review URL: http://codereview.chromium.org/9130

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@4646 0039d316-1c4b-4281-b951-d872f2087c98

base/scoped_cftyperef.h

@@ -27,8 +27,9 @@ class scoped_cftyperef {
   }
 
   void reset(CFT object = NULL) {
-    if (object_ && object_ != object) {
-      CFRelease(object_);
+    if (object_ != object) {
+      if (object_)
+        CFRelease(object_);
       object_ = object;
     }
   }
@@ -71,4 +72,3 @@ class scoped_cftyperef {
 };
 
 #endif  // BASE_SCOPED_CFTYPEREF_H_
-