Move all core files in //components/sessions into core/ subdir

components/sessions/core/serialized_navigation_entry_unittest.cc

 // Copyright (c) 2013 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 "components/sessions/serialized_navigation_entry.h"
+#include "components/sessions/core/serialized_navigation_entry.h"
 
 #include <cstddef>
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/pickle.h"
 #include "base/strings/string16.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/time/time.h"
 #include "components/sessions/core/serialized_navigation_driver.h"
-#include "components/sessions/serialized_navigation_entry_test_helper.h"
+#include "components/sessions/core/serialized_navigation_entry_test_helper.h"
 #include "sync/protocol/session_specifics.pb.h"
 #include "sync/util/time.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "ui/base/page_transition_types.h"
 #include "url/gurl.h"
 
 namespace sessions {
 namespace {
 
 // Create a sync_pb::TabNavigation from the constants above.
@@ skipping 189 matching lines @@
       const ui::PageTransition constructed_transition =
           constructed_nav.transition_type();
 
       EXPECT_EQ(transition, constructed_transition);
     }
   }
 }
 
 }  // namespace
 }  // namespace sessions