[Sync] Fix namespaces for the browser_sync component.

chrome/browser/sync/test/integration/sync_exponential_backoff_test.cc

 // Copyright 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 "base/bind.h"
 #include "base/macros.h"
 #include "base/strings/stringprintf.h"
 #include "chrome/browser/sync/test/integration/bookmarks_helper.h"
 #include "chrome/browser/sync/test/integration/retry_verifier.h"
 #include "chrome/browser/sync/test/integration/single_client_status_change_checker.h"
@@ skipping 15 matching lines @@
   ~SyncExponentialBackoffTest() override {}
 
  private:
   DISALLOW_COPY_AND_ASSIGN(SyncExponentialBackoffTest);
 };
 
 // Helper class that checks if a sync client has successfully gone through
 // exponential backoff after it encounters an error.
 class ExponentialBackoffChecker : public SingleClientStatusChangeChecker {
  public:
-  explicit ExponentialBackoffChecker(ProfileSyncService* pss)
-        : SingleClientStatusChangeChecker(pss) {
+  explicit ExponentialBackoffChecker(browser_sync::ProfileSyncService* pss)
+      : SingleClientStatusChangeChecker(pss) {
     const SyncCycleSnapshot& snap = service()->GetLastCycleSnapshot();
     retry_verifier_.Initialize(snap);
   }
 
   ~ExponentialBackoffChecker() override {}
 
   // Checks if backoff is complete. Called repeatedly each time PSS notifies
   // observers of a state change.
   bool IsExitConditionSatisfied() override {
     const SyncCycleSnapshot& snap = service()->GetLastCycleSnapshot();
@@ skipping 68 matching lines @@
 
   // Verify that the client goes into exponential backoff while it is unable to
   // reach the sync server.
   ExponentialBackoffChecker exponential_backoff_checker(
       GetSyncService((0)));
   exponential_backoff_checker.Wait();
   ASSERT_FALSE(exponential_backoff_checker.TimedOut());
 }
 
 }  // namespace