Revert of [Sync] Move //components/sync to the syncer namespace. (patchset #5 id:40001 of https://co

components/sync/base/proto_value_ptr.h

 // Copyright 2015 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 COMPONENTS_SYNC_BASE_PROTO_VALUE_PTR_H_
 #define COMPONENTS_SYNC_BASE_PROTO_VALUE_PTR_H_
 
 #include "base/gtest_prod_util.h"
 #include "base/memory/ref_counted.h"
 
-namespace syncer {
+namespace syncer_v2 {
 struct EntityData;
 class ProcessorEntityTracker;
-}  // namespace syncer
+}  // namespace syncer_v2
 
 namespace syncer {
 
 namespace syncable {
 struct EntryKernel;
 }  // namespace syncable
 
 // Default traits struct for ProtoValuePtr - adapts a
 // ::google::protobuf::MessageLite derived type to be used with ProtoValuePtr.
 template <typename T>
@@ skipping 59 matching lines @@
     return wrapper_ ? wrapper_->value() : Traits::DefaultValue();
   }
 
   const T* operator->() const {
     const T& wrapped_instance = value();
     return &wrapped_instance;
   }
 
  private:
   friend struct syncable::EntryKernel;
-  friend struct EntityData;
-  friend class ProcessorEntityTracker;
+  friend struct syncer_v2::EntityData;
+  friend class syncer_v2::ProcessorEntityTracker;
   FRIEND_TEST_ALL_PREFIXES(ProtoValuePtrTest, ValueAssignment);
   FRIEND_TEST_ALL_PREFIXES(ProtoValuePtrTest, ValueSwap);
   FRIEND_TEST_ALL_PREFIXES(ProtoValuePtrTest, SharingTest);
   FRIEND_TEST_ALL_PREFIXES(ProtoValuePtrTest, ParsingTest);
 
   // set the value to copy of |new_value|.
   void set_value(const T& new_value) {
     if (Traits::HasValue(new_value)) {
       wrapper_ = new Wrapper(new_value);
     } else {
@@ skipping 17 matching lines @@
   void load(const void* blob, int length) {
     wrapper_ = Wrapper::ParseFromBlob(blob, length);
   }
 
   scoped_refptr<Wrapper> wrapper_;
 };
 
 }  // namespace syncer
 
 #endif  // COMPONENTS_SYNC_BASE_PROTO_VALUE_PTR_H_