Convert //sync from scoped_ptr to std::unique_ptr

sync/engine/backoff_delay_provider_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 "sync/engine/backoff_delay_provider.h"
 
-#include "base/memory/scoped_ptr.h"
+#include <memory>
+
 #include "base/time/time.h"
 #include "sync/internal_api/public/engine/polling_constants.h"
 #include "sync/internal_api/public/sessions/model_neutral_state.h"
 #include "sync/internal_api/public/util/syncer_error.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 using base::TimeDelta;
 
 namespace syncer {
 
 class BackoffDelayProviderTest : public testing::Test {};
 
 TEST_F(BackoffDelayProviderTest, GetRecommendedDelay) {
-  scoped_ptr<BackoffDelayProvider> delay(BackoffDelayProvider::FromDefaults());
+  std::unique_ptr<BackoffDelayProvider> delay(
+      BackoffDelayProvider::FromDefaults());
   EXPECT_EQ(TimeDelta::FromSeconds(1),
             delay->GetDelay(TimeDelta::FromSeconds(0)));
   EXPECT_LE(TimeDelta::FromSeconds(1),
             delay->GetDelay(TimeDelta::FromSeconds(1)));
   EXPECT_LE(TimeDelta::FromSeconds(50),
             delay->GetDelay(TimeDelta::FromSeconds(50)));
   EXPECT_LE(TimeDelta::FromSeconds(10),
             delay->GetDelay(TimeDelta::FromSeconds(10)));
   EXPECT_EQ(TimeDelta::FromSeconds(kMaxBackoffSeconds),
             delay->GetDelay(TimeDelta::FromSeconds(kMaxBackoffSeconds)));
   EXPECT_EQ(TimeDelta::FromSeconds(kMaxBackoffSeconds),
             delay->GetDelay(TimeDelta::FromSeconds(kMaxBackoffSeconds + 1)));
 }
 
 TEST_F(BackoffDelayProviderTest, GetInitialDelay) {
-  scoped_ptr<BackoffDelayProvider> delay(BackoffDelayProvider::FromDefaults());
+  std::unique_ptr<BackoffDelayProvider> delay(
+      BackoffDelayProvider::FromDefaults());
   sessions::ModelNeutralState state;
   state.last_get_key_result = SYNC_SERVER_ERROR;
   EXPECT_EQ(kInitialBackoffRetrySeconds,
             delay->GetInitialDelay(state).InSeconds());
 
   state.last_get_key_result = UNSET;
   state.last_download_updates_result = SERVER_RETURN_MIGRATION_DONE;
   EXPECT_EQ(kInitialBackoffImmediateRetrySeconds,
             delay->GetInitialDelay(state).InSeconds());
 
@@ skipping 28 matching lines @@
   state.commit_result = NETWORK_CONNECTION_UNAVAILABLE;
   EXPECT_EQ(kInitialBackoffRetrySeconds,
             delay->GetInitialDelay(state).InSeconds());
 
   state.commit_result = SERVER_RETURN_CONFLICT;
   EXPECT_EQ(kInitialBackoffImmediateRetrySeconds,
             delay->GetInitialDelay(state).InSeconds());
 }
 
 TEST_F(BackoffDelayProviderTest, GetInitialDelayWithOverride) {
-  scoped_ptr<BackoffDelayProvider> delay(
+  std::unique_ptr<BackoffDelayProvider> delay(
       BackoffDelayProvider::WithShortInitialRetryOverride());
   sessions::ModelNeutralState state;
   state.last_get_key_result = SYNC_SERVER_ERROR;
   EXPECT_EQ(kInitialBackoffShortRetrySeconds,
             delay->GetInitialDelay(state).InSeconds());
 
   state.last_get_key_result = UNSET;
   state.last_download_updates_result = SERVER_RETURN_MIGRATION_DONE;
   EXPECT_EQ(kInitialBackoffImmediateRetrySeconds,
             delay->GetInitialDelay(state).InSeconds());
@@ skipping 21 matching lines @@
   state.commit_result = SERVER_RETURN_MIGRATION_DONE;
   EXPECT_EQ(kInitialBackoffImmediateRetrySeconds,
             delay->GetInitialDelay(state).InSeconds());
 
   state.commit_result = SERVER_RETURN_CONFLICT;
   EXPECT_EQ(kInitialBackoffImmediateRetrySeconds,
             delay->GetInitialDelay(state).InSeconds());
 }
 
 }  // namespace syncer