Delete Tracked, and move Location to its own file.

chrome/browser/sync/util/weak_handle_unittest.cc

 // 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.
 
 #include "chrome/browser/sync/util/weak_handle.h"
 
 #include "base/bind.h"
 #include "base/compiler_specific.h"
+#include "base/location.h"
 #include "base/memory/weak_ptr.h"
 #include "base/message_loop.h"
 #include "base/threading/thread.h"
-#include "base/tracked.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace browser_sync {
 namespace {
 
 using ::testing::_;
 using ::testing::SaveArg;
 using ::testing::StrictMock;
 
@@ skipping 232 matching lines @@
     h.Call(FROM_HERE, &Base::Test);
     h.Reset();
     EXPECT_FALSE(h.IsInitialized());
   }
 
   PumpLoop();
 }
 
 }  // namespace
 }  // namespace browser_sync