[Sync] Creating sync_sessions component, moving revisit logic.

components/sync_sessions/revisit/sessions_page_revisit_observer_unittest.cc

 // 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.
 
-#include "components/sync_driver/revisit/sessions_page_revisit_observer.h"
+#include "components/sync_sessions/revisit/sessions_page_revisit_observer.h"
 
 #include "base/memory/scoped_ptr.h"
 #include "base/test/histogram_tester.h"
 #include "components/sessions/core/serialized_navigation_entry.h"
 #include "components/sessions/core/serialized_navigation_entry_test_helper.h"
 #include "components/sessions/core/session_types.h"
 #include "components/sync_driver/glue/synced_session.h"
-#include "components/sync_driver/revisit/page_visit_observer.h"
+#include "components/sync_sessions/revisit/page_visit_observer.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "url/gurl.h"
 
 using sessions::SessionTab;
 using sessions::SessionWindow;
+using sync_driver::SyncedSession;
 
-namespace sync_driver {
+namespace sync_sessions {
 
 namespace {
 
 static const std::string kExampleUrl = "http://www.example.com";
 static const std::string kDifferentUrl = "http://www.different.com";
 
 class TestForeignSessionsProvider : public ForeignSessionsProvider {
  public:
   TestForeignSessionsProvider(const std::vector<const SyncedSession*>& sessions,
                               bool return_value)
@@ skipping 153 matching lines @@
   std::vector<const SyncedSession*> sessions;
   sessions.push_back(session1.get());
   sessions.push_back(session2.get());
   SessionsPageRevisitObserver observer(
       make_scoped_ptr(new TestForeignSessionsProvider(sessions, true)));
 
   base::HistogramTester histogram_tester;
   CheckAndExpect(observer, GURL(kExampleUrl), true, true);
 }
 
-}  // namespace sync_driver
+}  // namespace sync_sessions