sync: Add DeviceInfo protobuf and supporting code

chrome/browser/sync/glue/session_model_associator_unittest.cc

 // Copyright (c) 2012 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.
 
 #include <string>
 #include <vector>
 
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop.h"
 #include "chrome/browser/sessions/session_types.h"
@@ skipping 111 matching lines @@
   tab.navigations.push_back(nav);
   // NewTab does not count as valid if it's the only navigation.
   ASSERT_FALSE(ShouldSyncSessionTab(tab));
 }
 
 }  // namespace
 
 TEST_F(SyncSessionModelAssociatorTest, PopulateSessionHeader) {
   sync_pb::SessionHeader header_s;
   header_s.set_client_name("Client 1");
-  header_s.set_device_type(sync_pb::SessionHeader_DeviceType_TYPE_WIN);
+  header_s.set_device_type(sync_pb::SyncEnums_DeviceType_TYPE_WIN);
 
   SyncedSession session;
   base::Time time = base::Time::Now();
   SessionModelAssociator::PopulateSessionHeaderFromSpecifics(
       header_s, time, &session);
   ASSERT_EQ("Client 1", session.session_name);
   ASSERT_EQ(SyncedSession::TYPE_WIN, session.device_type);
   ASSERT_EQ(time, session.modified_time);
 }
 
@@ skipping 467 matching lines @@
             session_tab.navigations[2].virtual_url());
   EXPECT_EQ(kTime1, session_tab.navigations[0].timestamp());
   EXPECT_EQ(kTime2, session_tab.navigations[1].timestamp());
   EXPECT_EQ(kTime3, session_tab.navigations[2].timestamp());
   EXPECT_TRUE(session_tab.session_storage_persistent_id.empty());
 }
 
 }  // namespace
 
 }  // namespace browser_sync