Move PropertyBag to base. Originally this was in chrome\common because only chrome used it. Now t...

base/property_bag.h

 // Copyright (c) 2011 The Chromium 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 CONTENT_COMMON_PROPERTY_BAG_H_
-#define CONTENT_COMMON_PROPERTY_BAG_H_
+#ifndef BASE_PROPERTY_BAG_H_
+#define BASE_PROPERTY_BAG_H_
 #pragma once
 
 #include <map>
 
 #include "base/basictypes.h"
-#include "content/common/content_export.h"
+#include "base/base_export.h"
 
-template <typename T>
-class linked_ptr;
+template <typename T> class linked_ptr;
+
+namespace base {
+
 class PropertyAccessorBase;
 
 // A property bag holds a generalized list of arbitrary metadata called
 // properties. Each property is a class type derived from PropertyBag::Prop
 // that can be set and retrieved.
 //
 // The property bag is not read or written directly. Instead, callers go
 // through a PropertyAccessor. The Accessor generates the unique IDs that
 // identify different properties. The Accessor is templatized to also provide
 // typesafety to the callers.
@@ skipping 10 matching lines @@
 //   }
 //
 //   void doit(SomeObjectThatImplementsPropertyBag* object) {
 //     PropertyAccessor<int>* accessor = my_accessor();
 //     int* property = accessor->GetProperty(object);
 //     if (property)
 //       ... use property ...
 //
 //     accessor->SetProperty(object, 22);
 //   }
-class CONTENT_EXPORT PropertyBag {
+class BASE_EXPORT PropertyBag {
  public:
   // The type that uniquely identifies a property type.
   typedef int PropID;
   enum { NULL_PROP_ID = -1 };  // Invalid property ID.
 
   // Properties are all derived from this class. They must be deletable and
   // copyable
   class Prop {
    public:
     virtual ~Prop() {}
@@ skipping 30 matching lines @@
 
   PropertyMap props_;
 
   // Copy and assign is explicitly allowed for this class.
 };
 
 // PropertyAccessorBase -------------------------------------------------------
 
 // Manages getting the unique IDs to identify a property. Callers should use
 // PropertyAccessor below instead.
-class CONTENT_EXPORT PropertyAccessorBase {
+class BASE_EXPORT PropertyAccessorBase {
  public:
   PropertyAccessorBase();
   virtual ~PropertyAccessorBase() {}
 
   // Removes our property, if any, from the given property bag.
   void DeleteProperty(PropertyBag* bag) {
     bag->DeleteProperty(prop_id_);
   }
 
  protected:
@@ skipping 58 matching lines @@
     virtual Prop* copy() {
       return new Container(data_);
     }
 
     T data_;
   };
 
   DISALLOW_COPY_AND_ASSIGN(PropertyAccessor);
 };
 
-#endif  // CONTENT_COMMON_PROPERTY_BAG_H_
+}  // namespace base
+
+#endif  // BASE_PROPERTY_BAG_H_