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-rw-r--r--sync/api/fake_syncable_service.h1
-rw-r--r--sync/api/sync_change.h1
-rw-r--r--sync/api/sync_change_processor.h1
-rw-r--r--sync/api/sync_data.h1
-rw-r--r--sync/api/sync_error.h1
-rw-r--r--sync/api/sync_error_factory.h1
-rw-r--r--sync/api/sync_error_factory_mock.h1
-rw-r--r--sync/api/syncable_service.h1
-rw-r--r--sync/engine/all_status.h1
-rw-r--r--sync/engine/apply_updates_command.h1
-rw-r--r--sync/engine/build_commit_command.h1
-rw-r--r--sync/engine/cleanup_disabled_types_command.h1
-rw-r--r--sync/engine/commit.h1
-rw-r--r--sync/engine/conflict_resolver.h1
-rw-r--r--sync/engine/download_updates_command.h1
-rw-r--r--sync/engine/get_commit_ids_command.h1
-rw-r--r--sync/engine/model_changing_syncer_command.h1
-rw-r--r--sync/engine/net/server_connection_manager.h1
-rw-r--r--sync/engine/net/url_translator.h1
-rw-r--r--sync/engine/nudge_source.h1
-rw-r--r--sync/engine/process_commit_response_command.h1
-rw-r--r--sync/engine/process_updates_command.h1
-rw-r--r--sync/engine/resolve_conflicts_command.h1
-rw-r--r--sync/engine/store_timestamps_command.h1
-rw-r--r--sync/engine/sync_engine_event.h1
-rw-r--r--sync/engine/sync_scheduler.h1
-rw-r--r--sync/engine/syncer.h1
-rw-r--r--sync/engine/syncer_command.h1
-rw-r--r--sync/engine/syncer_proto_util.h1
-rw-r--r--sync/engine/syncer_types.h1
-rw-r--r--sync/engine/syncer_util.h1
-rw-r--r--sync/engine/syncproto.h1
-rw-r--r--sync/engine/throttled_data_type_tracker.h1
-rw-r--r--sync/engine/traffic_logger.h1
-rw-r--r--sync/engine/traffic_recorder.h1
-rw-r--r--sync/engine/update_applicator.h1
-rw-r--r--sync/engine/verify_updates_command.h1
-rw-r--r--sync/internal_api/change_reorder_buffer.h1
-rw-r--r--sync/internal_api/js_mutation_event_observer.h1
-rw-r--r--sync/internal_api/js_sync_manager_observer.h1
-rw-r--r--sync/internal_api/public/base/enum_set.h1
-rw-r--r--sync/internal_api/public/base/model_type.h1
-rw-r--r--sync/internal_api/public/base/model_type_payload_map.h1
-rw-r--r--sync/internal_api/public/base/model_type_test_util.h1
-rw-r--r--sync/internal_api/public/base_node.h1
-rw-r--r--sync/internal_api/public/base_transaction.h1
-rw-r--r--sync/internal_api/public/configure_reason.h1
-rw-r--r--sync/internal_api/public/engine/model_safe_worker.h1
-rw-r--r--sync/internal_api/public/engine/passive_model_worker.h1
-rw-r--r--sync/internal_api/public/engine/polling_constants.h1
-rw-r--r--sync/internal_api/public/http_bridge.h1
-rw-r--r--sync/internal_api/public/http_post_provider_factory.h1
-rw-r--r--sync/internal_api/public/http_post_provider_interface.h1
-rw-r--r--sync/internal_api/public/read_node.h1
-rw-r--r--sync/internal_api/public/sessions/model_neutral_state.h1
-rw-r--r--sync/internal_api/public/sessions/sync_session_snapshot.h1
-rw-r--r--sync/internal_api/public/sessions/sync_source_info.h1
-rw-r--r--sync/internal_api/public/test/test_user_share.h1
-rw-r--r--sync/internal_api/public/user_share.h1
-rw-r--r--sync/internal_api/public/util/experiments.h1
-rw-r--r--sync/internal_api/public/util/immutable.h1
-rw-r--r--sync/internal_api/public/util/report_unrecoverable_error_function.h1
-rw-r--r--sync/internal_api/public/util/syncer_error.h1
-rw-r--r--sync/internal_api/public/util/unrecoverable_error_handler.h1
-rw-r--r--sync/internal_api/public/util/unrecoverable_error_info.h1
-rw-r--r--sync/internal_api/public/util/weak_handle.h1
-rw-r--r--sync/internal_api/public/write_node.h1
-rw-r--r--sync/internal_api/syncapi_server_connection_manager.h1
-rw-r--r--sync/js/js_arg_list.h1
-rw-r--r--sync/js/js_backend.h1
-rw-r--r--sync/js/js_controller.h1
-rw-r--r--sync/js/js_event_details.h1
-rw-r--r--sync/js/js_event_handler.h1
-rw-r--r--sync/js/js_reply_handler.h1
-rw-r--r--sync/js/js_test_util.h1
-rw-r--r--sync/js/sync_js_controller.h1
-rw-r--r--sync/notifier/chrome_invalidation_client.h1
-rw-r--r--sync/notifier/chrome_system_resources.h1
-rw-r--r--sync/notifier/invalidation_notifier.h1
-rw-r--r--sync/notifier/invalidation_util.h1
-rw-r--r--sync/notifier/mock_sync_notifier_observer.h1
-rw-r--r--sync/notifier/non_blocking_invalidation_notifier.h1
-rw-r--r--sync/notifier/notifications_disabled_reason.h1
-rw-r--r--sync/notifier/push_client_channel.h1
-rw-r--r--sync/notifier/registration_manager.h1
-rw-r--r--sync/notifier/state_writer.h1
-rw-r--r--sync/notifier/sync_notifier_observer.h1
-rw-r--r--sync/protocol/proto_enum_conversions.h1
-rw-r--r--sync/protocol/proto_value_conversions.h1
-rw-r--r--sync/protocol/sync_protocol_error.h1
-rw-r--r--sync/sessions/ordered_commit_set.h1
-rw-r--r--sync/sessions/session_state.h1
-rw-r--r--sync/sessions/status_controller.h1
-rw-r--r--sync/sessions/sync_session.h1
-rw-r--r--sync/sessions/sync_session_context.h1
-rw-r--r--sync/sessions/test_util.h1
-rw-r--r--sync/syncable/base_transaction.h1
-rw-r--r--sync/syncable/blob.h1
-rw-r--r--sync/syncable/dir_open_result.h1
-rw-r--r--sync/syncable/directory.h1
-rw-r--r--sync/syncable/directory_backing_store.h1
-rw-r--r--sync/syncable/directory_change_delegate.h1
-rw-r--r--sync/syncable/entry.h1
-rw-r--r--sync/syncable/entry_kernel.h1
-rw-r--r--sync/syncable/in_memory_directory_backing_store.h1
-rw-r--r--sync/syncable/mutable_entry.h1
-rw-r--r--sync/syncable/nigori_util.h1
-rw-r--r--sync/syncable/on_disk_directory_backing_store.h1
-rw-r--r--sync/syncable/read_transaction.h1
-rw-r--r--sync/syncable/scoped_kernel_lock.h1
-rw-r--r--sync/syncable/syncable-inl.h1
-rw-r--r--sync/syncable/syncable_changes_version.h1
-rw-r--r--sync/syncable/syncable_columns.h1
-rw-r--r--sync/syncable/syncable_enum_conversions.h1
-rw-r--r--sync/syncable/syncable_id.h1
-rw-r--r--sync/syncable/syncable_mock.h1
-rw-r--r--sync/syncable/transaction_observer.h1
-rw-r--r--sync/syncable/write_transaction.h1
-rw-r--r--sync/syncable/write_transaction_info.h1
-rw-r--r--sync/test/engine/fake_model_worker.h1
-rw-r--r--sync/test/engine/mock_connection_manager.h1
-rw-r--r--sync/test/engine/syncer_command_test.h1
-rw-r--r--sync/test/engine/test_directory_setter_upper.h1
-rw-r--r--sync/test/engine/test_id_factory.h1
-rw-r--r--sync/test/engine/test_syncable_utils.h1
-rw-r--r--sync/test/fake_encryptor.h1
-rw-r--r--sync/test/fake_extensions_activity_monitor.h1
-rw-r--r--sync/test/null_directory_change_delegate.h1
-rw-r--r--sync/test/null_transaction_observer.h1
-rw-r--r--sync/test/sessions/test_scoped_session_event_listener.h1
-rw-r--r--sync/test/test_directory_backing_store.h1
-rw-r--r--sync/util/cryptographer.h1
-rw-r--r--sync/util/data_encryption_win.h1
-rw-r--r--sync/util/data_type_histogram.h1
-rw-r--r--sync/util/encryptor.h1
-rw-r--r--sync/util/extensions_activity_monitor.h1
-rw-r--r--sync/util/get_session_name.h1
-rw-r--r--sync/util/get_session_name_mac.h1
-rw-r--r--sync/util/get_session_name_win.h1
-rw-r--r--sync/util/logging.h1
-rw-r--r--sync/util/nigori.h1
-rw-r--r--sync/util/session_utils_android.h1
-rw-r--r--sync/util/test_unrecoverable_error_handler.h1
-rw-r--r--sync/util/time.h1
144 files changed, 0 insertions, 144 deletions
diff --git a/sync/api/fake_syncable_service.h b/sync/api/fake_syncable_service.h
index 22e1c8c..483325a 100644
--- a/sync/api/fake_syncable_service.h
+++ b/sync/api/fake_syncable_service.h
@@ -4,7 +4,6 @@
#ifndef SYNC_API_FAKE_SYNCABLE_SERVICE_H_
#define SYNC_API_FAKE_SYNCABLE_SERVICE_H_
-#pragma once
#include "sync/api/syncable_service.h"
diff --git a/sync/api/sync_change.h b/sync/api/sync_change.h
index 3cfb1d5..bf4675d 100644
--- a/sync/api/sync_change.h
+++ b/sync/api/sync_change.h
@@ -4,7 +4,6 @@
#ifndef SYNC_API_SYNC_CHANGE_H_
#define SYNC_API_SYNC_CHANGE_H_
-#pragma once
#include <iosfwd>
#include <string>
diff --git a/sync/api/sync_change_processor.h b/sync/api/sync_change_processor.h
index 85a5e0b..ad7c6d1 100644
--- a/sync/api/sync_change_processor.h
+++ b/sync/api/sync_change_processor.h
@@ -4,7 +4,6 @@
#ifndef SYNC_API_SYNC_CHANGE_PROCESSOR_H_
#define SYNC_API_SYNC_CHANGE_PROCESSOR_H_
-#pragma once
#include <vector>
diff --git a/sync/api/sync_data.h b/sync/api/sync_data.h
index aa91912..3bad3ae 100644
--- a/sync/api/sync_data.h
+++ b/sync/api/sync_data.h
@@ -4,7 +4,6 @@
#ifndef SYNC_API_SYNC_DATA_H_
#define SYNC_API_SYNC_DATA_H_
-#pragma once
#include <iosfwd>
#include <string>
diff --git a/sync/api/sync_error.h b/sync/api/sync_error.h
index 657c17d..532b90c 100644
--- a/sync/api/sync_error.h
+++ b/sync/api/sync_error.h
@@ -4,7 +4,6 @@
#ifndef SYNC_API_SYNC_ERROR_H_
#define SYNC_API_SYNC_ERROR_H_
-#pragma once
#include <iosfwd>
#include <string>
diff --git a/sync/api/sync_error_factory.h b/sync/api/sync_error_factory.h
index 2634506..39fab50 100644
--- a/sync/api/sync_error_factory.h
+++ b/sync/api/sync_error_factory.h
@@ -4,7 +4,6 @@
#ifndef SYNC_API_SYNC_ERROR_FACTORY_H_
#define SYNC_API_SYNC_ERROR_FACTORY_H_
-#pragma once
#include <string>
diff --git a/sync/api/sync_error_factory_mock.h b/sync/api/sync_error_factory_mock.h
index ea96806..bd675ee 100644
--- a/sync/api/sync_error_factory_mock.h
+++ b/sync/api/sync_error_factory_mock.h
@@ -4,7 +4,6 @@
#ifndef SYNC_API_SYNC_ERROR_FACTORY_MOCK_H_
#define SYNC_API_SYNC_ERROR_FACTORY_MOCK_H_
-#pragma once
#include "sync/api/sync_error_factory.h"
diff --git a/sync/api/syncable_service.h b/sync/api/syncable_service.h
index c3b2589..6118a91 100644
--- a/sync/api/syncable_service.h
+++ b/sync/api/syncable_service.h
@@ -4,7 +4,6 @@
#ifndef SYNC_API_SYNCABLE_SERVICE_H_
#define SYNC_API_SYNCABLE_SERVICE_H_
-#pragma once
#include <vector>
diff --git a/sync/engine/all_status.h b/sync/engine/all_status.h
index 6807b44..95efb97 100644
--- a/sync/engine/all_status.h
+++ b/sync/engine/all_status.h
@@ -7,7 +7,6 @@
#ifndef SYNC_INTERNAL_API_ALL_STATUS_H_
#define SYNC_INTERNAL_API_ALL_STATUS_H_
-#pragma once
#include <map>
#include <string>
diff --git a/sync/engine/apply_updates_command.h b/sync/engine/apply_updates_command.h
index bea1a7f..a453c42 100644
--- a/sync/engine/apply_updates_command.h
+++ b/sync/engine/apply_updates_command.h
@@ -4,7 +4,6 @@
#ifndef SYNC_ENGINE_APPLY_UPDATES_COMMAND_H_
#define SYNC_ENGINE_APPLY_UPDATES_COMMAND_H_
-#pragma once
#include "base/compiler_specific.h"
#include "sync/engine/model_changing_syncer_command.h"
diff --git a/sync/engine/build_commit_command.h b/sync/engine/build_commit_command.h
index b7dbee0..0adab28 100644
--- a/sync/engine/build_commit_command.h
+++ b/sync/engine/build_commit_command.h
@@ -4,7 +4,6 @@
#ifndef SYNC_ENGINE_BUILD_COMMIT_COMMAND_H_
#define SYNC_ENGINE_BUILD_COMMIT_COMMAND_H_
-#pragma once
#include "base/basictypes.h"
#include "base/compiler_specific.h"
diff --git a/sync/engine/cleanup_disabled_types_command.h b/sync/engine/cleanup_disabled_types_command.h
index ee0ab86..2090f1d 100644
--- a/sync/engine/cleanup_disabled_types_command.h
+++ b/sync/engine/cleanup_disabled_types_command.h
@@ -4,7 +4,6 @@
#ifndef SYNC_ENGINE_CLEANUP_DISABLED_TYPES_COMMAND_H_
#define SYNC_ENGINE_CLEANUP_DISABLED_TYPES_COMMAND_H_
-#pragma once
#include "base/compiler_specific.h"
#include "sync/engine/syncer_command.h"
diff --git a/sync/engine/commit.h b/sync/engine/commit.h
index 2169adf..d460fec 100644
--- a/sync/engine/commit.h
+++ b/sync/engine/commit.h
@@ -4,7 +4,6 @@
#ifndef SYNC_ENGINE_COMMIT_H_
#define SYNC_ENGINE_COMMIT_H_
-#pragma once
#include "sync/internal_api/public/util/syncer_error.h"
diff --git a/sync/engine/conflict_resolver.h b/sync/engine/conflict_resolver.h
index e0fce1d..2efb1e9 100644
--- a/sync/engine/conflict_resolver.h
+++ b/sync/engine/conflict_resolver.h
@@ -7,7 +7,6 @@
#ifndef SYNC_ENGINE_CONFLICT_RESOLVER_H_
#define SYNC_ENGINE_CONFLICT_RESOLVER_H_
-#pragma once
#include <map>
#include <set>
diff --git a/sync/engine/download_updates_command.h b/sync/engine/download_updates_command.h
index 2dbbd6b..8e79ac9 100644
--- a/sync/engine/download_updates_command.h
+++ b/sync/engine/download_updates_command.h
@@ -4,7 +4,6 @@
#ifndef SYNC_ENGINE_DOWNLOAD_UPDATES_COMMAND_H_
#define SYNC_ENGINE_DOWNLOAD_UPDATES_COMMAND_H_
-#pragma once
#include "base/basictypes.h"
#include "base/compiler_specific.h"
diff --git a/sync/engine/get_commit_ids_command.h b/sync/engine/get_commit_ids_command.h
index 5160842..b7e4335 100644
--- a/sync/engine/get_commit_ids_command.h
+++ b/sync/engine/get_commit_ids_command.h
@@ -4,7 +4,6 @@
#ifndef SYNC_ENGINE_GET_COMMIT_IDS_COMMAND_H_
#define SYNC_ENGINE_GET_COMMIT_IDS_COMMAND_H_
-#pragma once
#include <utility>
#include <vector>
diff --git a/sync/engine/model_changing_syncer_command.h b/sync/engine/model_changing_syncer_command.h
index ad6dc63..9a58249 100644
--- a/sync/engine/model_changing_syncer_command.h
+++ b/sync/engine/model_changing_syncer_command.h
@@ -4,7 +4,6 @@
#ifndef SYNC_ENGINE_MODEL_CHANGING_SYNCER_COMMAND_H_
#define SYNC_ENGINE_MODEL_CHANGING_SYNCER_COMMAND_H_
-#pragma once
#include "base/compiler_specific.h"
#include "sync/engine/syncer_command.h"
diff --git a/sync/engine/net/server_connection_manager.h b/sync/engine/net/server_connection_manager.h
index 3f7cce2..0df25df 100644
--- a/sync/engine/net/server_connection_manager.h
+++ b/sync/engine/net/server_connection_manager.h
@@ -4,7 +4,6 @@
#ifndef SYNC_ENGINE_NET_SERVER_CONNECTION_MANAGER_H_
#define SYNC_ENGINE_NET_SERVER_CONNECTION_MANAGER_H_
-#pragma once
#include <iosfwd>
#include <string>
diff --git a/sync/engine/net/url_translator.h b/sync/engine/net/url_translator.h
index 043a2fe..3f8128f 100644
--- a/sync/engine/net/url_translator.h
+++ b/sync/engine/net/url_translator.h
@@ -7,7 +7,6 @@
#ifndef SYNC_ENGINE_NET_URL_TRANSLATOR_H_
#define SYNC_ENGINE_NET_URL_TRANSLATOR_H_
-#pragma once
#include <string>
diff --git a/sync/engine/nudge_source.h b/sync/engine/nudge_source.h
index b665203..366f6d1 100644
--- a/sync/engine/nudge_source.h
+++ b/sync/engine/nudge_source.h
@@ -4,7 +4,6 @@
#ifndef SYNC_ENGINE_NUDGE_SOURCE_H_
#define SYNC_ENGINE_NUDGE_SOURCE_H_
-#pragma once
namespace syncer {
diff --git a/sync/engine/process_commit_response_command.h b/sync/engine/process_commit_response_command.h
index ef5ab08..96d8178 100644
--- a/sync/engine/process_commit_response_command.h
+++ b/sync/engine/process_commit_response_command.h
@@ -4,7 +4,6 @@
#ifndef SYNC_ENGINE_PROCESS_COMMIT_RESPONSE_COMMAND_H_
#define SYNC_ENGINE_PROCESS_COMMIT_RESPONSE_COMMAND_H_
-#pragma once
#include <set>
#include <string>
diff --git a/sync/engine/process_updates_command.h b/sync/engine/process_updates_command.h
index 9ec9b31..7604d11 100644
--- a/sync/engine/process_updates_command.h
+++ b/sync/engine/process_updates_command.h
@@ -4,7 +4,6 @@
#ifndef SYNC_ENGINE_PROCESS_UPDATES_COMMAND_H_
#define SYNC_ENGINE_PROCESS_UPDATES_COMMAND_H_
-#pragma once
#include "base/compiler_specific.h"
#include "sync/engine/model_changing_syncer_command.h"
diff --git a/sync/engine/resolve_conflicts_command.h b/sync/engine/resolve_conflicts_command.h
index 22a9302..4dfe092 100644
--- a/sync/engine/resolve_conflicts_command.h
+++ b/sync/engine/resolve_conflicts_command.h
@@ -4,7 +4,6 @@
#ifndef SYNC_ENGINE_RESOLVE_CONFLICTS_COMMAND_H_
#define SYNC_ENGINE_RESOLVE_CONFLICTS_COMMAND_H_
-#pragma once
#include "base/basictypes.h"
#include "base/compiler_specific.h"
diff --git a/sync/engine/store_timestamps_command.h b/sync/engine/store_timestamps_command.h
index 382752b..a73f309 100644
--- a/sync/engine/store_timestamps_command.h
+++ b/sync/engine/store_timestamps_command.h
@@ -4,7 +4,6 @@
#ifndef SYNC_ENGINE_STORE_TIMESTAMPS_COMMAND_H_
#define SYNC_ENGINE_STORE_TIMESTAMPS_COMMAND_H_
-#pragma once
#include "base/compiler_specific.h"
#include "sync/engine/syncer_command.h"
diff --git a/sync/engine/sync_engine_event.h b/sync/engine/sync_engine_event.h
index 6545461e..94abfe3 100644
--- a/sync/engine/sync_engine_event.h
+++ b/sync/engine/sync_engine_event.h
@@ -4,7 +4,6 @@
#ifndef SYNC_ENGINE_SYNC_ENGINE_EVENT_H_
#define SYNC_ENGINE_SYNC_ENGINE_EVENT_H_
-#pragma once
#include <string>
diff --git a/sync/engine/sync_scheduler.h b/sync/engine/sync_scheduler.h
index efe9789..e9892d2 100644
--- a/sync/engine/sync_scheduler.h
+++ b/sync/engine/sync_scheduler.h
@@ -5,7 +5,6 @@
// A class to schedule syncer tasks intelligently.
#ifndef SYNC_ENGINE_SYNC_SCHEDULER_H_
#define SYNC_ENGINE_SYNC_SCHEDULER_H_
-#pragma once
#include <string>
diff --git a/sync/engine/syncer.h b/sync/engine/syncer.h
index 2c3e883..6d05d43 100644
--- a/sync/engine/syncer.h
+++ b/sync/engine/syncer.h
@@ -4,7 +4,6 @@
#ifndef SYNC_ENGINE_SYNCER_H_
#define SYNC_ENGINE_SYNCER_H_
-#pragma once
#include <utility>
#include <vector>
diff --git a/sync/engine/syncer_command.h b/sync/engine/syncer_command.h
index b626b0f..575e55b 100644
--- a/sync/engine/syncer_command.h
+++ b/sync/engine/syncer_command.h
@@ -4,7 +4,6 @@
#ifndef SYNC_ENGINE_SYNCER_COMMAND_H_
#define SYNC_ENGINE_SYNCER_COMMAND_H_
-#pragma once
#include "base/basictypes.h"
diff --git a/sync/engine/syncer_proto_util.h b/sync/engine/syncer_proto_util.h
index dd75dd5..689f168 100644
--- a/sync/engine/syncer_proto_util.h
+++ b/sync/engine/syncer_proto_util.h
@@ -4,7 +4,6 @@
#ifndef SYNC_ENGINE_SYNCER_PROTO_UTIL_H_
#define SYNC_ENGINE_SYNCER_PROTO_UTIL_H_
-#pragma once
#include <string>
diff --git a/sync/engine/syncer_types.h b/sync/engine/syncer_types.h
index eb79d82..ada4d82 100644
--- a/sync/engine/syncer_types.h
+++ b/sync/engine/syncer_types.h
@@ -4,7 +4,6 @@
#ifndef SYNC_ENGINE_SYNCER_TYPES_H_
#define SYNC_ENGINE_SYNCER_TYPES_H_
-#pragma once
// The intent of this is to keep all shared data types and enums for the syncer
// in a single place without having dependencies between other files.
diff --git a/sync/engine/syncer_util.h b/sync/engine/syncer_util.h
index 9e270a1..ddd21a7 100644
--- a/sync/engine/syncer_util.h
+++ b/sync/engine/syncer_util.h
@@ -7,7 +7,6 @@
#ifndef SYNC_ENGINE_SYNCER_UTIL_H_
#define SYNC_ENGINE_SYNCER_UTIL_H_
-#pragma once
#include <set>
#include <string>
diff --git a/sync/engine/syncproto.h b/sync/engine/syncproto.h
index 9100ee5..282255c 100644
--- a/sync/engine/syncproto.h
+++ b/sync/engine/syncproto.h
@@ -6,7 +6,6 @@
#ifndef SYNC_ENGINE_SYNCPROTO_H_
#define SYNC_ENGINE_SYNCPROTO_H_
-#pragma once
#include "sync/internal_api/public/base/model_type.h"
#include "sync/protocol/sync.pb.h"
diff --git a/sync/engine/throttled_data_type_tracker.h b/sync/engine/throttled_data_type_tracker.h
index 9e1eb6a..8db5061 100644
--- a/sync/engine/throttled_data_type_tracker.h
+++ b/sync/engine/throttled_data_type_tracker.h
@@ -4,7 +4,6 @@
#ifndef SYNC_ENGINE_THROTTLED_DATA_TYPE_TRACKER_H_
#define SYNC_ENGINE_THROTTLED_DATA_TYPE_TRACKER_H_
-#pragma once
#include <map>
diff --git a/sync/engine/traffic_logger.h b/sync/engine/traffic_logger.h
index cba7a67..0205395 100644
--- a/sync/engine/traffic_logger.h
+++ b/sync/engine/traffic_logger.h
@@ -8,7 +8,6 @@
#ifndef CHROME_BROWSER_SYNC_ENGINE_TRAFFIC_LOGGER_H_
#define CHROME_BROWSER_SYNC_ENGINE_TRAFFIC_LOGGER_H_
-#pragma once
namespace sync_pb {
class ClientToServerResponse;
diff --git a/sync/engine/traffic_recorder.h b/sync/engine/traffic_recorder.h
index 436f07c..28edec5 100644
--- a/sync/engine/traffic_recorder.h
+++ b/sync/engine/traffic_recorder.h
@@ -4,7 +4,6 @@
#ifndef CHROME_BROWSER_SYNC_ENGINE_TRAFFIC_RECORDER_H_
#define CHROME_BROWSER_SYNC_ENGINE_TRAFFIC_RECORDER_H_
-#pragma once
#include <deque>
#include <string>
diff --git a/sync/engine/update_applicator.h b/sync/engine/update_applicator.h
index ea16fa2..487b41d 100644
--- a/sync/engine/update_applicator.h
+++ b/sync/engine/update_applicator.h
@@ -10,7 +10,6 @@
#ifndef SYNC_ENGINE_UPDATE_APPLICATOR_H_
#define SYNC_ENGINE_UPDATE_APPLICATOR_H_
-#pragma once
#include <vector>
diff --git a/sync/engine/verify_updates_command.h b/sync/engine/verify_updates_command.h
index 07cf48c..4fe74a5 100644
--- a/sync/engine/verify_updates_command.h
+++ b/sync/engine/verify_updates_command.h
@@ -4,7 +4,6 @@
#ifndef SYNC_ENGINE_VERIFY_UPDATES_COMMAND_H_
#define SYNC_ENGINE_VERIFY_UPDATES_COMMAND_H_
-#pragma once
#include "base/basictypes.h"
#include "base/compiler_specific.h"
diff --git a/sync/internal_api/change_reorder_buffer.h b/sync/internal_api/change_reorder_buffer.h
index 81f4f6d..09aaf8e 100644
--- a/sync/internal_api/change_reorder_buffer.h
+++ b/sync/internal_api/change_reorder_buffer.h
@@ -8,7 +8,6 @@
#ifndef SYNC_INTERNAL_API_CHANGE_REORDER_BUFFER_H_
#define SYNC_INTERNAL_API_CHANGE_REORDER_BUFFER_H_
-#pragma once
#include <map>
#include <vector>
diff --git a/sync/internal_api/js_mutation_event_observer.h b/sync/internal_api/js_mutation_event_observer.h
index 858c05f..91bf98b 100644
--- a/sync/internal_api/js_mutation_event_observer.h
+++ b/sync/internal_api/js_mutation_event_observer.h
@@ -4,7 +4,6 @@
#ifndef SYNC_INTERNAL_API_JS_MUTATION_EVENT_OBSERVER_H_
#define SYNC_INTERNAL_API_JS_MUTATION_EVENT_OBSERVER_H_
-#pragma once
#include <string>
diff --git a/sync/internal_api/js_sync_manager_observer.h b/sync/internal_api/js_sync_manager_observer.h
index 04eec48..e26c8f4 100644
--- a/sync/internal_api/js_sync_manager_observer.h
+++ b/sync/internal_api/js_sync_manager_observer.h
@@ -4,7 +4,6 @@
#ifndef SYNC_INTERNAL_API_JS_SYNC_MANAGER_OBSERVER_H_
#define SYNC_INTERNAL_API_JS_SYNC_MANAGER_OBSERVER_H_
-#pragma once
#include <string>
diff --git a/sync/internal_api/public/base/enum_set.h b/sync/internal_api/public/base/enum_set.h
index 2daf0845..85d9a54 100644
--- a/sync/internal_api/public/base/enum_set.h
+++ b/sync/internal_api/public/base/enum_set.h
@@ -4,7 +4,6 @@
#ifndef SYNC_INTERNAL_API_PUBLIC_BASE_ENUM_SET_H_
#define SYNC_INTERNAL_API_PUBLIC_BASE_ENUM_SET_H_
-#pragma once
#include <bitset>
#include <cstddef>
diff --git a/sync/internal_api/public/base/model_type.h b/sync/internal_api/public/base/model_type.h
index c8b1948..25baf6c 100644
--- a/sync/internal_api/public/base/model_type.h
+++ b/sync/internal_api/public/base/model_type.h
@@ -8,7 +8,6 @@
#ifndef SYNC_INTERNAL_API_PUBLIC_BASE_MODEL_TYPE_H_
#define SYNC_INTERNAL_API_PUBLIC_BASE_MODEL_TYPE_H_
-#pragma once
#include <set>
#include <string>
diff --git a/sync/internal_api/public/base/model_type_payload_map.h b/sync/internal_api/public/base/model_type_payload_map.h
index da708f7..699b84b 100644
--- a/sync/internal_api/public/base/model_type_payload_map.h
+++ b/sync/internal_api/public/base/model_type_payload_map.h
@@ -6,7 +6,6 @@
#ifndef SYNC_INTERNAL_PUBLIC_API_BASE_MODEL_TYPE_PAYLOAD_MAP_H_
#define SYNC_INTERNAL_PUBLIC_API_BASE_MODEL_TYPE_PAYLOAD_MAP_H_
-#pragma once
#include <map>
#include <string>
diff --git a/sync/internal_api/public/base/model_type_test_util.h b/sync/internal_api/public/base/model_type_test_util.h
index 0bac4b7..cd347cb 100644
--- a/sync/internal_api/public/base/model_type_test_util.h
+++ b/sync/internal_api/public/base/model_type_test_util.h
@@ -4,7 +4,6 @@
#ifndef SYNC_INTERNAL_PUBLIC_API_BASE_MODEL_TYPE_TEST_UTIL_H_
#define SYNC_INTERNAL_PUBLIC_API_BASE_MODEL_TYPE_TEST_UTIL_H_
-#pragma once
#include <ostream>
diff --git a/sync/internal_api/public/base_node.h b/sync/internal_api/public/base_node.h
index 7212927..8d66016 100644
--- a/sync/internal_api/public/base_node.h
+++ b/sync/internal_api/public/base_node.h
@@ -4,7 +4,6 @@
#ifndef SYNC_INTERNAL_API_PUBLIC_BASE_NODE_H_
#define SYNC_INTERNAL_API_PUBLIC_BASE_NODE_H_
-#pragma once
#include <string>
#include <vector>
diff --git a/sync/internal_api/public/base_transaction.h b/sync/internal_api/public/base_transaction.h
index 7781692..09cecda 100644
--- a/sync/internal_api/public/base_transaction.h
+++ b/sync/internal_api/public/base_transaction.h
@@ -4,7 +4,6 @@
#ifndef SYNC_INTERNAL_API_PUBLIC_BASE_TRANSACTION_H_
#define SYNC_INTERNAL_API_PUBLIC_BASE_TRANSACTION_H_
-#pragma once
#include "sync/internal_api/public/user_share.h"
diff --git a/sync/internal_api/public/configure_reason.h b/sync/internal_api/public/configure_reason.h
index be77472..1eefc72 100644
--- a/sync/internal_api/public/configure_reason.h
+++ b/sync/internal_api/public/configure_reason.h
@@ -4,7 +4,6 @@
#ifndef SYNC_INTERNAL_API_PUBLIC_CONFIGURE_REASON_H_
#define SYNC_INTERNAL_API_PUBLIC_CONFIGURE_REASON_H_
-#pragma once
namespace syncer {
diff --git a/sync/internal_api/public/engine/model_safe_worker.h b/sync/internal_api/public/engine/model_safe_worker.h
index 5c9c7ae..193e41d 100644
--- a/sync/internal_api/public/engine/model_safe_worker.h
+++ b/sync/internal_api/public/engine/model_safe_worker.h
@@ -4,7 +4,6 @@
#ifndef SYNC_INTERNAL_API_PUBLIC_ENGINE_MODEL_SAFE_WORKER_H_
#define SYNC_INTERNAL_API_PUBLIC_ENGINE_MODEL_SAFE_WORKER_H_
-#pragma once
#include <map>
#include <string>
diff --git a/sync/internal_api/public/engine/passive_model_worker.h b/sync/internal_api/public/engine/passive_model_worker.h
index 1ef9864..ec257f63 100644
--- a/sync/internal_api/public/engine/passive_model_worker.h
+++ b/sync/internal_api/public/engine/passive_model_worker.h
@@ -4,7 +4,6 @@
#ifndef SYNC_INTERNAL_API_PUBLIC_ENGINE_PASSIVE_MODEL_WORKER_H_
#define SYNC_INTERNAL_API_PUBLIC_ENGINE_PASSIVE_MODEL_WORKER_H_
-#pragma once
#include "base/basictypes.h"
#include "base/compiler_specific.h"
diff --git a/sync/internal_api/public/engine/polling_constants.h b/sync/internal_api/public/engine/polling_constants.h
index 94b375b..bd40149 100644
--- a/sync/internal_api/public/engine/polling_constants.h
+++ b/sync/internal_api/public/engine/polling_constants.h
@@ -6,7 +6,6 @@
#ifndef SYNC_INTERNAL_API_PUBLIC_ENGINE_POLLING_CONSTANTS_H_
#define SYNC_INTERNAL_API_PUBLIC_ENGINE_POLLING_CONSTANTS_H_
-#pragma once
namespace syncer {
diff --git a/sync/internal_api/public/http_bridge.h b/sync/internal_api/public/http_bridge.h
index 16d59d8..45dc487 100644
--- a/sync/internal_api/public/http_bridge.h
+++ b/sync/internal_api/public/http_bridge.h
@@ -4,7 +4,6 @@
#ifndef SYNC_INTERNAL_API_PUBLIC_HTTP_BRIDGE_H_
#define SYNC_INTERNAL_API_PUBLIC_HTTP_BRIDGE_H_
-#pragma once
#include <string>
diff --git a/sync/internal_api/public/http_post_provider_factory.h b/sync/internal_api/public/http_post_provider_factory.h
index 8c5a991..dfb87a3 100644
--- a/sync/internal_api/public/http_post_provider_factory.h
+++ b/sync/internal_api/public/http_post_provider_factory.h
@@ -4,7 +4,6 @@
#ifndef SYNC_INTERNAL_API_PUBLIC_HTTP_POST_PROVIDER_FACTORY_H_
#define SYNC_INTERNAL_API_PUBLIC_HTTP_POST_PROVIDER_FACTORY_H_
-#pragma once
namespace syncer {
diff --git a/sync/internal_api/public/http_post_provider_interface.h b/sync/internal_api/public/http_post_provider_interface.h
index 3f5e74e..c703e30 100644
--- a/sync/internal_api/public/http_post_provider_interface.h
+++ b/sync/internal_api/public/http_post_provider_interface.h
@@ -4,7 +4,6 @@
#ifndef SYNC_INTERNAL_API_PUBLIC_HTTP_POST_PROVIDER_INTERFACE_H_
#define SYNC_INTERNAL_API_PUBLIC_HTTP_POST_PROVIDER_INTERFACE_H_
-#pragma once
#include <string>
diff --git a/sync/internal_api/public/read_node.h b/sync/internal_api/public/read_node.h
index f253fc3..358a529 100644
--- a/sync/internal_api/public/read_node.h
+++ b/sync/internal_api/public/read_node.h
@@ -4,7 +4,6 @@
#ifndef SYNC_INTERNAL_API_PUBLIC_READ_NODE_H_
#define SYNC_INTERNAL_API_PUBLIC_READ_NODE_H_
-#pragma once
#include <string>
diff --git a/sync/internal_api/public/sessions/model_neutral_state.h b/sync/internal_api/public/sessions/model_neutral_state.h
index d9d53ab..a9c1c44 100644
--- a/sync/internal_api/public/sessions/model_neutral_state.h
+++ b/sync/internal_api/public/sessions/model_neutral_state.h
@@ -4,7 +4,6 @@
#ifndef SYNC_SESSIONS_MODEL_NEUTRAL_STATE_H
#define SYNC_SESSIONS_MODEL_NEUTRAL_STATE_H
-#pragma once
#include "base/basictypes.h"
#include "sync/internal_api/public/util/syncer_error.h"
diff --git a/sync/internal_api/public/sessions/sync_session_snapshot.h b/sync/internal_api/public/sessions/sync_session_snapshot.h
index 7c88753..6891145 100644
--- a/sync/internal_api/public/sessions/sync_session_snapshot.h
+++ b/sync/internal_api/public/sessions/sync_session_snapshot.h
@@ -4,7 +4,6 @@
#ifndef SYNC_INTERNAL_API_PUBLIC_SESSIONS_SYNC_SESSION_SNAPSHOT_H_
#define SYNC_INTERNAL_API_PUBLIC_SESSIONS_SYNC_SESSION_SNAPSHOT_H_
-#pragma once
#include <string>
diff --git a/sync/internal_api/public/sessions/sync_source_info.h b/sync/internal_api/public/sessions/sync_source_info.h
index 812afb7..4e5b264 100644
--- a/sync/internal_api/public/sessions/sync_source_info.h
+++ b/sync/internal_api/public/sessions/sync_source_info.h
@@ -4,7 +4,6 @@
#ifndef SYNC_INTERNAL_API_PUBLIC_SESSIONS_SYNC_SOURCE_INFO_H_
#define SYNC_INTERNAL_API_PUBLIC_SESSIONS_SYNC_SOURCE_INFO_H_
-#pragma once
#include "base/basictypes.h"
#include "sync/internal_api/public/base/model_type.h"
diff --git a/sync/internal_api/public/test/test_user_share.h b/sync/internal_api/public/test/test_user_share.h
index 0fb1503..7ce6ff8 100644
--- a/sync/internal_api/public/test/test_user_share.h
+++ b/sync/internal_api/public/test/test_user_share.h
@@ -29,7 +29,6 @@
#ifndef SYNC_INTERNAL_API_PUBLIC_TEST_TEST_USER_SHARE_H_
#define SYNC_INTERNAL_API_PUBLIC_TEST_TEST_USER_SHARE_H_
-#pragma once
#include "base/basictypes.h"
#include "sync/internal_api/public/user_share.h"
diff --git a/sync/internal_api/public/user_share.h b/sync/internal_api/public/user_share.h
index 008755d..af4e231e 100644
--- a/sync/internal_api/public/user_share.h
+++ b/sync/internal_api/public/user_share.h
@@ -4,7 +4,6 @@
#ifndef SYNC_INTERNAL_API_PUBLIC_USER_SHARE_H_
#define SYNC_INTERNAL_API_PUBLIC_USER_SHARE_H_
-#pragma once
#include <string>
diff --git a/sync/internal_api/public/util/experiments.h b/sync/internal_api/public/util/experiments.h
index b1c1817..7cea6d6 100644
--- a/sync/internal_api/public/util/experiments.h
+++ b/sync/internal_api/public/util/experiments.h
@@ -4,7 +4,6 @@
#ifndef SYNC_UTIL_EXPERIMENTS_
#define SYNC_UTIL_EXPERIMENTS_
-#pragma once
#include "sync/internal_api/public/base/model_type.h"
diff --git a/sync/internal_api/public/util/immutable.h b/sync/internal_api/public/util/immutable.h
index 1742c0e..290f130 100644
--- a/sync/internal_api/public/util/immutable.h
+++ b/sync/internal_api/public/util/immutable.h
@@ -64,7 +64,6 @@
#ifndef SYNC_UTIL_IMMUTABLE_H_
#define SYNC_UTIL_IMMUTABLE_H_
-#pragma once
// For std::swap().
#include <algorithm>
diff --git a/sync/internal_api/public/util/report_unrecoverable_error_function.h b/sync/internal_api/public/util/report_unrecoverable_error_function.h
index a6aec0f2..c0686ca 100644
--- a/sync/internal_api/public/util/report_unrecoverable_error_function.h
+++ b/sync/internal_api/public/util/report_unrecoverable_error_function.h
@@ -4,7 +4,6 @@
#ifndef SYNC_UTIL_REPORT_UNRECOVERABLE_ERROR_FUNCTION_H_
#define SYNC_UTIL_REPORT_UNRECOVERABLE_ERROR_FUNCTION_H_
-#pragma once
namespace syncer {
diff --git a/sync/internal_api/public/util/syncer_error.h b/sync/internal_api/public/util/syncer_error.h
index f895066..3dd4dd0 100644
--- a/sync/internal_api/public/util/syncer_error.h
+++ b/sync/internal_api/public/util/syncer_error.h
@@ -4,7 +4,6 @@
#ifndef SYNC_INTERNAL_API_PUBLIC_UTIL_SYNCER_ERROR_H_
#define SYNC_INTERNAL_API_PUBLIC_UTIL_SYNCER_ERROR_H_
-#pragma once
namespace syncer {
diff --git a/sync/internal_api/public/util/unrecoverable_error_handler.h b/sync/internal_api/public/util/unrecoverable_error_handler.h
index 82644ee..db2f2c0 100644
--- a/sync/internal_api/public/util/unrecoverable_error_handler.h
+++ b/sync/internal_api/public/util/unrecoverable_error_handler.h
@@ -4,7 +4,6 @@
#ifndef SYNC_UTIL_UNRECOVERABLE_ERROR_HANDLER_H_
#define SYNC_UTIL_UNRECOVERABLE_ERROR_HANDLER_H_
-#pragma once
#include <string>
diff --git a/sync/internal_api/public/util/unrecoverable_error_info.h b/sync/internal_api/public/util/unrecoverable_error_info.h
index 912b51e..1fb9832 100644
--- a/sync/internal_api/public/util/unrecoverable_error_info.h
+++ b/sync/internal_api/public/util/unrecoverable_error_info.h
@@ -6,7 +6,6 @@
#define SYNC_UTIL_UNRECOVERABLE_ERROR_INFO_H_
// TODO(lipalani): Figure out the right location for this class so it is
// accessible outside of sync engine as well.
-#pragma once
#include <string>
diff --git a/sync/internal_api/public/util/weak_handle.h b/sync/internal_api/public/util/weak_handle.h
index 9441949..0103e4e 100644
--- a/sync/internal_api/public/util/weak_handle.h
+++ b/sync/internal_api/public/util/weak_handle.h
@@ -46,7 +46,6 @@
#ifndef SYNC_UTIL_WEAK_HANDLE_H_
#define SYNC_UTIL_WEAK_HANDLE_H_
-#pragma once
#include <cstddef>
diff --git a/sync/internal_api/public/write_node.h b/sync/internal_api/public/write_node.h
index 2965741..6231850 100644
--- a/sync/internal_api/public/write_node.h
+++ b/sync/internal_api/public/write_node.h
@@ -4,7 +4,6 @@
#ifndef SYNC_INTERNAL_API_PUBLIC_WRITE_NODE_H_
#define SYNC_INTERNAL_API_PUBLIC_WRITE_NODE_H_
-#pragma once
#include <string>
#include <vector>
diff --git a/sync/internal_api/syncapi_server_connection_manager.h b/sync/internal_api/syncapi_server_connection_manager.h
index 4b15f72..37b6fed 100644
--- a/sync/internal_api/syncapi_server_connection_manager.h
+++ b/sync/internal_api/syncapi_server_connection_manager.h
@@ -4,7 +4,6 @@
#ifndef SYNC_INTERNAL_API_SYNCAPI_SERVER_CONNECTION_MANAGER_H_
#define SYNC_INTERNAL_API_SYNCAPI_SERVER_CONNECTION_MANAGER_H_
-#pragma once
#include <string>
diff --git a/sync/js/js_arg_list.h b/sync/js/js_arg_list.h
index 6e38869..0762c56 100644
--- a/sync/js/js_arg_list.h
+++ b/sync/js/js_arg_list.h
@@ -4,7 +4,6 @@
#ifndef SYNC_JS_JS_ARG_LIST_H_
#define SYNC_JS_JS_ARG_LIST_H_
-#pragma once
// See README.js for design comments.
diff --git a/sync/js/js_backend.h b/sync/js/js_backend.h
index 960064e..ea1d7aa 100644
--- a/sync/js/js_backend.h
+++ b/sync/js/js_backend.h
@@ -4,7 +4,6 @@
#ifndef SYNC_JS_JS_BACKEND_H_
#define SYNC_JS_JS_BACKEND_H_
-#pragma once
// See README.js for design comments.
diff --git a/sync/js/js_controller.h b/sync/js/js_controller.h
index 359958c..c2a5475 100644
--- a/sync/js/js_controller.h
+++ b/sync/js/js_controller.h
@@ -4,7 +4,6 @@
#ifndef SYNC_JS_JS_CONTROLLER_H_
#define SYNC_JS_JS_CONTROLLER_H_
-#pragma once
// See README.js for design comments.
diff --git a/sync/js/js_event_details.h b/sync/js/js_event_details.h
index fb3bf39..512264b 100644
--- a/sync/js/js_event_details.h
+++ b/sync/js/js_event_details.h
@@ -4,7 +4,6 @@
#ifndef SYNC_JS_JS_EVENT_DETAILS_H_
#define SYNC_JS_JS_EVENT_DETAILS_H_
-#pragma once
// See README.js for design comments.
diff --git a/sync/js/js_event_handler.h b/sync/js/js_event_handler.h
index c31c593..04eadca 100644
--- a/sync/js/js_event_handler.h
+++ b/sync/js/js_event_handler.h
@@ -4,7 +4,6 @@
#ifndef SYNC_JS_JS_EVENT_HANDLER_H_
#define SYNC_JS_JS_EVENT_HANDLER_H_
-#pragma once
// See README.js for design comments.
diff --git a/sync/js/js_reply_handler.h b/sync/js/js_reply_handler.h
index 6f793c0..3026b7b 100644
--- a/sync/js/js_reply_handler.h
+++ b/sync/js/js_reply_handler.h
@@ -4,7 +4,6 @@
#ifndef SYNC_JS_JS_REPLY_HANDLER_H_
#define SYNC_JS_JS_REPLY_HANDLER_H_
-#pragma once
// See README.js for design comments.
diff --git a/sync/js/js_test_util.h b/sync/js/js_test_util.h
index 885966d..9cf91fb 100644
--- a/sync/js/js_test_util.h
+++ b/sync/js/js_test_util.h
@@ -4,7 +4,6 @@
#ifndef SYNC_JS_JS_TEST_UTIL_H_
#define SYNC_JS_JS_TEST_UTIL_H_
-#pragma once
#include <ostream>
#include <string>
diff --git a/sync/js/sync_js_controller.h b/sync/js/sync_js_controller.h
index 9eca80c..b6f1707 100644
--- a/sync/js/sync_js_controller.h
+++ b/sync/js/sync_js_controller.h
@@ -4,7 +4,6 @@
#ifndef SYNC_JS_SYNC_JS_CONTROLLER_H_
#define SYNC_JS_SYNC_JS_CONTROLLER_H_
-#pragma once
#include <string>
#include <vector>
diff --git a/sync/notifier/chrome_invalidation_client.h b/sync/notifier/chrome_invalidation_client.h
index 6d1c073..e4e5439 100644
--- a/sync/notifier/chrome_invalidation_client.h
+++ b/sync/notifier/chrome_invalidation_client.h
@@ -7,7 +7,6 @@
#ifndef SYNC_NOTIFIER_CHROME_INVALIDATION_CLIENT_H_
#define SYNC_NOTIFIER_CHROME_INVALIDATION_CLIENT_H_
-#pragma once
#include <map>
#include <string>
diff --git a/sync/notifier/chrome_system_resources.h b/sync/notifier/chrome_system_resources.h
index 8b8b13f..a2ba11d 100644
--- a/sync/notifier/chrome_system_resources.h
+++ b/sync/notifier/chrome_system_resources.h
@@ -8,7 +8,6 @@
#ifndef SYNC_NOTIFIER_CHROME_SYSTEM_RESOURCES_H_
#define SYNC_NOTIFIER_CHROME_SYSTEM_RESOURCES_H_
-#pragma once
#include <set>
#include <string>
diff --git a/sync/notifier/invalidation_notifier.h b/sync/notifier/invalidation_notifier.h
index e00a524..e76732f 100644
--- a/sync/notifier/invalidation_notifier.h
+++ b/sync/notifier/invalidation_notifier.h
@@ -11,7 +11,6 @@
#ifndef SYNC_NOTIFIER_INVALIDATION_NOTIFIER_H_
#define SYNC_NOTIFIER_INVALIDATION_NOTIFIER_H_
-#pragma once
#include <string>
diff --git a/sync/notifier/invalidation_util.h b/sync/notifier/invalidation_util.h
index bf5388f..55de454 100644
--- a/sync/notifier/invalidation_util.h
+++ b/sync/notifier/invalidation_util.h
@@ -6,7 +6,6 @@
#ifndef SYNC_NOTIFIER_INVALIDATION_UTIL_H_
#define SYNC_NOTIFIER_INVALIDATION_UTIL_H_
-#pragma once
#include <set>
#include <string>
diff --git a/sync/notifier/mock_sync_notifier_observer.h b/sync/notifier/mock_sync_notifier_observer.h
index a49b66b..badb940 100644
--- a/sync/notifier/mock_sync_notifier_observer.h
+++ b/sync/notifier/mock_sync_notifier_observer.h
@@ -4,7 +4,6 @@
#ifndef SYNC_NOTIFIER_MOCK_SYNC_NOTIFIER_OBSERVER_H_
#define SYNC_NOTIFIER_MOCK_SYNC_NOTIFIER_OBSERVER_H_
-#pragma once
#include <string>
diff --git a/sync/notifier/non_blocking_invalidation_notifier.h b/sync/notifier/non_blocking_invalidation_notifier.h
index 8c2cfaf..0cea979 100644
--- a/sync/notifier/non_blocking_invalidation_notifier.h
+++ b/sync/notifier/non_blocking_invalidation_notifier.h
@@ -7,7 +7,6 @@
#ifndef SYNC_NOTIFIER_NON_BLOCKING_INVALIDATION_NOTIFIER_H_
#define SYNC_NOTIFIER_NON_BLOCKING_INVALIDATION_NOTIFIER_H_
-#pragma once
#include <string>
diff --git a/sync/notifier/notifications_disabled_reason.h b/sync/notifier/notifications_disabled_reason.h
index 52a6a7d..b30573b 100644
--- a/sync/notifier/notifications_disabled_reason.h
+++ b/sync/notifier/notifications_disabled_reason.h
@@ -4,7 +4,6 @@
#ifndef SYNC_NOTIFIER_NOTIFICATIONS_DISABLED_REASON_H_
#define SYNC_NOTIFIER_NOTIFICATIONS_DISABLED_REASON_H_
-#pragma once
#include "jingle/notifier/listener/push_client_observer.h"
diff --git a/sync/notifier/push_client_channel.h b/sync/notifier/push_client_channel.h
index c966b03..0933f8b 100644
--- a/sync/notifier/push_client_channel.h
+++ b/sync/notifier/push_client_channel.h
@@ -4,7 +4,6 @@
#ifndef SYNC_NOTIFIER_PUSH_CLIENT_CHANNEL_H_
#define SYNC_NOTIFIER_PUSH_CLIENT_CHANNEL_H_
-#pragma once
#include <string>
#include <vector>
diff --git a/sync/notifier/registration_manager.h b/sync/notifier/registration_manager.h
index 8500655..20c753b 100644
--- a/sync/notifier/registration_manager.h
+++ b/sync/notifier/registration_manager.h
@@ -7,7 +7,6 @@
#ifndef SYNC_NOTIFIER_REGISTRATION_MANAGER_H_
#define SYNC_NOTIFIER_REGISTRATION_MANAGER_H_
-#pragma once
#include <map>
diff --git a/sync/notifier/state_writer.h b/sync/notifier/state_writer.h
index 4fe33cb..84abd17 100644
--- a/sync/notifier/state_writer.h
+++ b/sync/notifier/state_writer.h
@@ -6,7 +6,6 @@
#ifndef SYNC_NOTIFIER_STATE_WRITER_H_
#define SYNC_NOTIFIER_STATE_WRITER_H_
-#pragma once
#include <string>
diff --git a/sync/notifier/sync_notifier_observer.h b/sync/notifier/sync_notifier_observer.h
index c4ac9ca..54a0b2f 100644
--- a/sync/notifier/sync_notifier_observer.h
+++ b/sync/notifier/sync_notifier_observer.h
@@ -4,7 +4,6 @@
#ifndef SYNC_NOTIFIER_SYNC_NOTIFIER_OBSERVER_H_
#define SYNC_NOTIFIER_SYNC_NOTIFIER_OBSERVER_H_
-#pragma once
#include "sync/internal_api/public/base/model_type_payload_map.h"
#include "sync/notifier/notifications_disabled_reason.h"
diff --git a/sync/protocol/proto_enum_conversions.h b/sync/protocol/proto_enum_conversions.h
index 377ec0d..d2b4189 100644
--- a/sync/protocol/proto_enum_conversions.h
+++ b/sync/protocol/proto_enum_conversions.h
@@ -4,7 +4,6 @@
#ifndef SYNC_PROTOCOL_PROTO_ENUM_CONVERSIONS_H_
#define SYNC_PROTOCOL_PROTO_ENUM_CONVERSIONS_H_
-#pragma once
// Keep this file in sync with the .proto files in this directory.
diff --git a/sync/protocol/proto_value_conversions.h b/sync/protocol/proto_value_conversions.h
index 4ef2400..a1e938b 100644
--- a/sync/protocol/proto_value_conversions.h
+++ b/sync/protocol/proto_value_conversions.h
@@ -6,7 +6,6 @@
#ifndef SYNC_PROTOCOL_PROTO_VALUE_CONVERSIONS_H_
#define SYNC_PROTOCOL_PROTO_VALUE_CONVERSIONS_H_
-#pragma once
namespace base {
class DictionaryValue;
diff --git a/sync/protocol/sync_protocol_error.h b/sync/protocol/sync_protocol_error.h
index 359df59..930f39d 100644
--- a/sync/protocol/sync_protocol_error.h
+++ b/sync/protocol/sync_protocol_error.h
@@ -3,7 +3,6 @@
// found in the LICENSE file.
#ifndef SYNC_PROTOCOL_SYNC_PROTOCOL_ERROR_H_
#define SYNC_PROTOCOL_SYNC_PROTOCOL_ERROR_H_
-#pragma once
#include <string>
diff --git a/sync/sessions/ordered_commit_set.h b/sync/sessions/ordered_commit_set.h
index e2d2450..4226d28 100644
--- a/sync/sessions/ordered_commit_set.h
+++ b/sync/sessions/ordered_commit_set.h
@@ -4,7 +4,6 @@
#ifndef SYNC_SESSIONS_ORDERED_COMMIT_SET_H_
#define SYNC_SESSIONS_ORDERED_COMMIT_SET_H_
-#pragma once
#include <map>
#include <set>
diff --git a/sync/sessions/session_state.h b/sync/sessions/session_state.h
index 23f720c..a9468b5 100644
--- a/sync/sessions/session_state.h
+++ b/sync/sessions/session_state.h
@@ -11,7 +11,6 @@
#ifndef SYNC_SESSIONS_SESSION_STATE_H_
#define SYNC_SESSIONS_SESSION_STATE_H_
-#pragma once
#include <set>
#include <vector>
diff --git a/sync/sessions/status_controller.h b/sync/sessions/status_controller.h
index 85f3815..9d4fbb4 100644
--- a/sync/sessions/status_controller.h
+++ b/sync/sessions/status_controller.h
@@ -31,7 +31,6 @@
#ifndef SYNC_SESSIONS_STATUS_CONTROLLER_H_
#define SYNC_SESSIONS_STATUS_CONTROLLER_H_
-#pragma once
#include <map>
#include <vector>
diff --git a/sync/sessions/sync_session.h b/sync/sessions/sync_session.h
index 0e3118a..461d98e 100644
--- a/sync/sessions/sync_session.h
+++ b/sync/sessions/sync_session.h
@@ -13,7 +13,6 @@
#ifndef SYNC_SESSIONS_SYNC_SESSION_H_
#define SYNC_SESSIONS_SYNC_SESSION_H_
-#pragma once
#include <map>
#include <set>
diff --git a/sync/sessions/sync_session_context.h b/sync/sessions/sync_session_context.h
index 8edc18f..28baeaf 100644
--- a/sync/sessions/sync_session_context.h
+++ b/sync/sessions/sync_session_context.h
@@ -17,7 +17,6 @@
#ifndef SYNC_SESSIONS_SYNC_SESSION_CONTEXT_H_
#define SYNC_SESSIONS_SYNC_SESSION_CONTEXT_H_
-#pragma once
#include <map>
#include <string>
diff --git a/sync/sessions/test_util.h b/sync/sessions/test_util.h
index c27d752..9cfe9e2 100644
--- a/sync/sessions/test_util.h
+++ b/sync/sessions/test_util.h
@@ -5,7 +5,6 @@
// Utils to simulate various outcomes of a sync session.
#ifndef SYNC_SESSIONS_TEST_UTIL_H_
#define SYNC_SESSIONS_TEST_UTIL_H_
-#pragma once
#include "sync/engine/syncer.h"
#include "sync/sessions/sync_session.h"
diff --git a/sync/syncable/base_transaction.h b/sync/syncable/base_transaction.h
index cab9e39..80b9630 100644
--- a/sync/syncable/base_transaction.h
+++ b/sync/syncable/base_transaction.h
@@ -4,7 +4,6 @@
#ifndef SYNC_SYNCABLE_BASE_TRANSACTION_H_
#define SYNC_SYNCABLE_BASE_TRANSACTION_H_
-#pragma once
#include "base/location.h"
#include "sync/syncable/syncable_id.h"
diff --git a/sync/syncable/blob.h b/sync/syncable/blob.h
index a944e02..0f68a24 100644
--- a/sync/syncable/blob.h
+++ b/sync/syncable/blob.h
@@ -4,7 +4,6 @@
#ifndef SYNC_SYNCABLE_BLOB_H_
#define SYNC_SYNCABLE_BLOB_H_
-#pragma once
#include <vector>
diff --git a/sync/syncable/dir_open_result.h b/sync/syncable/dir_open_result.h
index 69bb08d..222be8b 100644
--- a/sync/syncable/dir_open_result.h
+++ b/sync/syncable/dir_open_result.h
@@ -4,7 +4,6 @@
#ifndef SYNC_SYNCABLE_DIR_OPEN_RESULT_H_
#define SYNC_SYNCABLE_DIR_OPEN_RESULT_H_
-#pragma once
namespace syncer {
namespace syncable {
diff --git a/sync/syncable/directory.h b/sync/syncable/directory.h
index b35cdc2..340b404 100644
--- a/sync/syncable/directory.h
+++ b/sync/syncable/directory.h
@@ -4,7 +4,6 @@
#ifndef SYNC_SYNCABLE_DIRECTORY_H_
#define SYNC_SYNCABLE_DIRECTORY_H_
-#pragma once
#include <set>
#include <string>
diff --git a/sync/syncable/directory_backing_store.h b/sync/syncable/directory_backing_store.h
index f519a32..034f405 100644
--- a/sync/syncable/directory_backing_store.h
+++ b/sync/syncable/directory_backing_store.h
@@ -4,7 +4,6 @@
#ifndef SYNC_SYNCABLE_DIRECTORY_BACKING_STORE_H_
#define SYNC_SYNCABLE_DIRECTORY_BACKING_STORE_H_
-#pragma once
#include <string>
diff --git a/sync/syncable/directory_change_delegate.h b/sync/syncable/directory_change_delegate.h
index aaf21d1..2afd621 100644
--- a/sync/syncable/directory_change_delegate.h
+++ b/sync/syncable/directory_change_delegate.h
@@ -4,7 +4,6 @@
#ifndef SYNC_SYNCABLE_DIRECTORY_CHANGE_DELEGATE_H_
#define SYNC_SYNCABLE_DIRECTORY_CHANGE_DELEGATE_H_
-#pragma once
#include "sync/internal_api/public/base/model_type.h"
#include "sync/syncable/write_transaction_info.h"
diff --git a/sync/syncable/entry.h b/sync/syncable/entry.h
index f0add9f..a755758 100644
--- a/sync/syncable/entry.h
+++ b/sync/syncable/entry.h
@@ -4,7 +4,6 @@
#ifndef SYNC_SYNCABLE_ENTRY_H_
#define SYNC_SYNCABLE_ENTRY_H_
-#pragma once
#include "sync/syncable/entry_kernel.h"
diff --git a/sync/syncable/entry_kernel.h b/sync/syncable/entry_kernel.h
index 4efc5b1..1954da4 100644
--- a/sync/syncable/entry_kernel.h
+++ b/sync/syncable/entry_kernel.h
@@ -4,7 +4,6 @@
#ifndef SYNC_SYNCABLE_ENTRY_KERNEL_H_
#define SYNC_SYNCABLE_ENTRY_KERNEL_H_
-#pragma once
#include "base/time.h"
#include "base/values.h"
diff --git a/sync/syncable/in_memory_directory_backing_store.h b/sync/syncable/in_memory_directory_backing_store.h
index 7cb6b9f3..cf45c74 100644
--- a/sync/syncable/in_memory_directory_backing_store.h
+++ b/sync/syncable/in_memory_directory_backing_store.h
@@ -4,7 +4,6 @@
#ifndef SYNC_SYNCABLE_IN_MEMORY_DIRECTORY_BACKING_STORE_H_
#define SYNC_SYNCABLE_IN_MEMORY_DIRECTORY_BACKING_STORE_H_
-#pragma once
#include "sync/syncable/directory_backing_store.h"
diff --git a/sync/syncable/mutable_entry.h b/sync/syncable/mutable_entry.h
index e3ea4c9..60968e9 100644
--- a/sync/syncable/mutable_entry.h
+++ b/sync/syncable/mutable_entry.h
@@ -4,7 +4,6 @@
#ifndef SYNC_SYNCABLE_MUTABLE_ENTRY_H_
#define SYNC_SYNCABLE_MUTABLE_ENTRY_H_
-#pragma once
#include "sync/syncable/entry.h"
#include "sync/syncable/metahandle_set.h"
diff --git a/sync/syncable/nigori_util.h b/sync/syncable/nigori_util.h
index 9d09d44..037c89e 100644
--- a/sync/syncable/nigori_util.h
+++ b/sync/syncable/nigori_util.h
@@ -6,7 +6,6 @@
#ifndef SYNC_SYNCABLE_NIGORI_UTIL_H_
#define SYNC_SYNCABLE_NIGORI_UTIL_H_
-#pragma once
#include "base/compiler_specific.h"
#include "sync/internal_api/public/base/model_type.h"
diff --git a/sync/syncable/on_disk_directory_backing_store.h b/sync/syncable/on_disk_directory_backing_store.h
index 5576a9b..f722ef9 100644
--- a/sync/syncable/on_disk_directory_backing_store.h
+++ b/sync/syncable/on_disk_directory_backing_store.h
@@ -4,7 +4,6 @@
#ifndef SYNC_SYNCABLE_ON_DISK_DIRECTORY_BACKING_STORE_H_
#define SYNC_SYNCABLE_ON_DISK_DIRECTORY_BACKING_STORE_H_
-#pragma once
#include "base/file_path.h"
#include "sync/syncable/directory_backing_store.h"
diff --git a/sync/syncable/read_transaction.h b/sync/syncable/read_transaction.h
index c2b6a01..cd3aded 100644
--- a/sync/syncable/read_transaction.h
+++ b/sync/syncable/read_transaction.h
@@ -4,7 +4,6 @@
#ifndef SYNC_SYNCABLE_READ_TRANSACTION_H_
#define SYNC_SYNCABLE_READ_TRANSACTION_H_
-#pragma once
#include "sync/syncable/base_transaction.h"
diff --git a/sync/syncable/scoped_kernel_lock.h b/sync/syncable/scoped_kernel_lock.h
index d37cc92..feb2dfd 100644
--- a/sync/syncable/scoped_kernel_lock.h
+++ b/sync/syncable/scoped_kernel_lock.h
@@ -4,7 +4,6 @@
#ifndef SYNC_SYNCABLE_SCOPED_KERNEL_LOCK_H_
#define SYNC_SYNCABLE_SCOPED_KERNEL_LOCK_H_
-#pragma once
#include "base/basictypes.h"
#include "base/synchronization/lock.h"
diff --git a/sync/syncable/syncable-inl.h b/sync/syncable/syncable-inl.h
index 49b3bf8..b9817cd 100644
--- a/sync/syncable/syncable-inl.h
+++ b/sync/syncable/syncable-inl.h
@@ -4,7 +4,6 @@
#ifndef SYNC_SYNCABLE_SYNCABLE_INL_H_
#define SYNC_SYNCABLE_SYNCABLE_INL_H_
-#pragma once
#include "sync/syncable/entry_kernel.h"
diff --git a/sync/syncable/syncable_changes_version.h b/sync/syncable/syncable_changes_version.h
index e42e70f..9b57aed 100644
--- a/sync/syncable/syncable_changes_version.h
+++ b/sync/syncable/syncable_changes_version.h
@@ -4,7 +4,6 @@
#ifndef SYNC_SYNCABLE_SYNCABLE_CHANGES_VERSION_H_
#define SYNC_SYNCABLE_SYNCABLE_CHANGES_VERSION_H_
-#pragma once
namespace syncer {
namespace syncable {
diff --git a/sync/syncable/syncable_columns.h b/sync/syncable/syncable_columns.h
index 3ed3e1b..a6152c4 100644
--- a/sync/syncable/syncable_columns.h
+++ b/sync/syncable/syncable_columns.h
@@ -4,7 +4,6 @@
#ifndef SYNC_SYNCABLE_SYNCABLE_COLUMNS_H_
#define SYNC_SYNCABLE_SYNCABLE_COLUMNS_H_
-#pragma once
#include "sync/syncable/entry_kernel.h"
#include "sync/syncable/syncable_changes_version.h"
diff --git a/sync/syncable/syncable_enum_conversions.h b/sync/syncable/syncable_enum_conversions.h
index 688d0b1..6127a33 100644
--- a/sync/syncable/syncable_enum_conversions.h
+++ b/sync/syncable/syncable_enum_conversions.h
@@ -4,7 +4,6 @@
#ifndef SYNC_SYNCABLE_SYNCABLE_ENUM_CONVERSIONS_H_
#define SYNC_SYNCABLE_SYNCABLE_ENUM_CONVERSIONS_H_
-#pragma once
// Keep this file in sync with entry_kernel.h.
diff --git a/sync/syncable/syncable_id.h b/sync/syncable/syncable_id.h
index 6c451ad..95157ab 100644
--- a/sync/syncable/syncable_id.h
+++ b/sync/syncable/syncable_id.h
@@ -4,7 +4,6 @@
#ifndef SYNC_SYNCABLE_SYNCABLE_ID_H_
#define SYNC_SYNCABLE_SYNCABLE_ID_H_
-#pragma once
#include <iosfwd>
#include <limits>
diff --git a/sync/syncable/syncable_mock.h b/sync/syncable/syncable_mock.h
index 977f9b3..24d435f 100644
--- a/sync/syncable/syncable_mock.h
+++ b/sync/syncable/syncable_mock.h
@@ -4,7 +4,6 @@
#ifndef SYNC_SYNCABLE_SYNCABLE_MOCK_H_
#define SYNC_SYNCABLE_SYNCABLE_MOCK_H_
-#pragma once
#include <string>
diff --git a/sync/syncable/transaction_observer.h b/sync/syncable/transaction_observer.h
index 377e1c1..2c43473 100644
--- a/sync/syncable/transaction_observer.h
+++ b/sync/syncable/transaction_observer.h
@@ -4,7 +4,6 @@
#ifndef SYNC_SYNCABLE_TRANSACTION_OBSERVER_H_
#define SYNC_SYNCABLE_TRANSACTION_OBSERVER_H_
-#pragma once
#include "sync/internal_api/public/base/model_type.h"
#include "sync/syncable/write_transaction_info.h"
diff --git a/sync/syncable/write_transaction.h b/sync/syncable/write_transaction.h
index 0b92d8a..17264c4 100644
--- a/sync/syncable/write_transaction.h
+++ b/sync/syncable/write_transaction.h
@@ -4,7 +4,6 @@
#ifndef SYNC_SYNCABLE_WRITE_TRANSACTION_H_
#define SYNC_SYNCABLE_WRITE_TRANSACTION_H_
-#pragma once
#include "sync/syncable/base_transaction.h"
#include "sync/syncable/entry_kernel.h"
diff --git a/sync/syncable/write_transaction_info.h b/sync/syncable/write_transaction_info.h
index bd5d52d..baaaceb 100644
--- a/sync/syncable/write_transaction_info.h
+++ b/sync/syncable/write_transaction_info.h
@@ -4,7 +4,6 @@
#ifndef SYNC_SYNCABLE_WRITE_TRANSACTION_INFO_H_
#define SYNC_SYNCABLE_WRITE_TRANSACTION_INFO_H_
-#pragma once
#include "sync/syncable/base_transaction.h"
#include "sync/syncable/entry_kernel.h"
diff --git a/sync/test/engine/fake_model_worker.h b/sync/test/engine/fake_model_worker.h
index 8b95fc5..7b7bd4b 100644
--- a/sync/test/engine/fake_model_worker.h
+++ b/sync/test/engine/fake_model_worker.h
@@ -4,7 +4,6 @@
#ifndef SYNC_TEST_ENGINE_FAKE_MODEL_WORKER_H_
#define SYNC_TEST_ENGINE_FAKE_MODEL_WORKER_H_
-#pragma once
#include <vector>
diff --git a/sync/test/engine/mock_connection_manager.h b/sync/test/engine/mock_connection_manager.h
index fbef583..f58cf22 100644
--- a/sync/test/engine/mock_connection_manager.h
+++ b/sync/test/engine/mock_connection_manager.h
@@ -6,7 +6,6 @@
#ifndef SYNC_TEST_ENGINE_MOCK_CONNECTION_MANAGER_H_
#define SYNC_TEST_ENGINE_MOCK_CONNECTION_MANAGER_H_
-#pragma once
#include <bitset>
#include <list>
diff --git a/sync/test/engine/syncer_command_test.h b/sync/test/engine/syncer_command_test.h
index 18d04cd..c99846c 100644
--- a/sync/test/engine/syncer_command_test.h
+++ b/sync/test/engine/syncer_command_test.h
@@ -4,7 +4,6 @@
#ifndef SYNC_TEST_ENGINE_SYNCER_COMMAND_TEST_H_
#define SYNC_TEST_ENGINE_SYNCER_COMMAND_TEST_H_
-#pragma once
#include <algorithm>
#include <string>
diff --git a/sync/test/engine/test_directory_setter_upper.h b/sync/test/engine/test_directory_setter_upper.h
index 4874440..b492064 100644
--- a/sync/test/engine/test_directory_setter_upper.h
+++ b/sync/test/engine/test_directory_setter_upper.h
@@ -28,7 +28,6 @@
#ifndef SYNC_TEST_ENGINE_TEST_DIRECTORY_SETTER_UPPER_H_
#define SYNC_TEST_ENGINE_TEST_DIRECTORY_SETTER_UPPER_H_
-#pragma once
#include <string>
diff --git a/sync/test/engine/test_id_factory.h b/sync/test/engine/test_id_factory.h
index 51ffd14..10568ad 100644
--- a/sync/test/engine/test_id_factory.h
+++ b/sync/test/engine/test_id_factory.h
@@ -6,7 +6,6 @@
#ifndef SYNC_TEST_ENGINE_TEST_ID_FACTORY_H_
#define SYNC_TEST_ENGINE_TEST_ID_FACTORY_H_
-#pragma once
#include <string>
diff --git a/sync/test/engine/test_syncable_utils.h b/sync/test/engine/test_syncable_utils.h
index 5ab4b0a..5076ebb 100644
--- a/sync/test/engine/test_syncable_utils.h
+++ b/sync/test/engine/test_syncable_utils.h
@@ -7,7 +7,6 @@
#ifndef SYNC_TEST_ENGINE_TEST_SYNCABLE_UTILS_H_
#define SYNC_TEST_ENGINE_TEST_SYNCABLE_UTILS_H_
-#pragma once
#include <string>
diff --git a/sync/test/fake_encryptor.h b/sync/test/fake_encryptor.h
index 99641c8..a1117ef 100644
--- a/sync/test/fake_encryptor.h
+++ b/sync/test/fake_encryptor.h
@@ -4,7 +4,6 @@
#ifndef SYNC_TEST_FAKE_ENCRYPTOR_H_
#define SYNC_TEST_FAKE_ENCRYPTOR_H_
-#pragma once
#include "base/compiler_specific.h"
#include "sync/util/encryptor.h"
diff --git a/sync/test/fake_extensions_activity_monitor.h b/sync/test/fake_extensions_activity_monitor.h
index 84c38ea..a0702e1 100644
--- a/sync/test/fake_extensions_activity_monitor.h
+++ b/sync/test/fake_extensions_activity_monitor.h
@@ -4,7 +4,6 @@
#ifndef SYNC_TEST_FAKE_EXTENSIONS_ACTIVITY_MONITOR_H_
#define SYNC_TEST_FAKE_EXTENSIONS_ACTIVITY_MONITOR_H_
-#pragma once
#include "base/compiler_specific.h"
#include "base/threading/non_thread_safe.h"
diff --git a/sync/test/null_directory_change_delegate.h b/sync/test/null_directory_change_delegate.h
index e5b88ff..4fdba374 100644
--- a/sync/test/null_directory_change_delegate.h
+++ b/sync/test/null_directory_change_delegate.h
@@ -4,7 +4,6 @@
#ifndef SYNC_TEST_NULL_DIRECTORY_CHANGE_DELEGATE_H_
#define SYNC_TEST_NULL_DIRECTORY_CHANGE_DELEGATE_H_
-#pragma once
#include "base/compiler_specific.h"
#include "sync/syncable/directory_change_delegate.h"
diff --git a/sync/test/null_transaction_observer.h b/sync/test/null_transaction_observer.h
index ab12f8c..45f4f87 100644
--- a/sync/test/null_transaction_observer.h
+++ b/sync/test/null_transaction_observer.h
@@ -4,7 +4,6 @@
#ifndef SYNC_TEST_NULL_TRANSACTION_OBSERVER_H_
#define SYNC_TEST_NULL_TRANSACTION_OBSERVER_H_
-#pragma once
#include "sync/internal_api/public/util/weak_handle.h"
diff --git a/sync/test/sessions/test_scoped_session_event_listener.h b/sync/test/sessions/test_scoped_session_event_listener.h
index ef46d7b..d2f68b8 100644
--- a/sync/test/sessions/test_scoped_session_event_listener.h
+++ b/sync/test/sessions/test_scoped_session_event_listener.h
@@ -4,7 +4,6 @@
#ifndef SYNC_TEST_SESSIONS_TEST_SCOPED_SESSION_EVENT_LISTENER_H_
#define SYNC_TEST_SESSIONS_TEST_SCOPED_SESSION_EVENT_LISTENER_H_
-#pragma once
#include "sync/sessions/sync_session_context.h"
diff --git a/sync/test/test_directory_backing_store.h b/sync/test/test_directory_backing_store.h
index 5ed119b0..7a2449b 100644
--- a/sync/test/test_directory_backing_store.h
+++ b/sync/test/test_directory_backing_store.h
@@ -4,7 +4,6 @@
#ifndef SYNC_TEST_TEST_DIRECTORY_BACKING_STORE_H_
#define SYNC_TEST_TEST_DIRECTORY_BACKING_STORE_H_
-#pragma once
#include "base/gtest_prod_util.h"
#include "sync/syncable/directory_backing_store.h"
diff --git a/sync/util/cryptographer.h b/sync/util/cryptographer.h
index c234952..b6f99af 100644
--- a/sync/util/cryptographer.h
+++ b/sync/util/cryptographer.h
@@ -4,7 +4,6 @@
#ifndef SYNC_UTIL_CRYPTOGRAPHER_H_
#define SYNC_UTIL_CRYPTOGRAPHER_H_
-#pragma once
#include <map>
#include <string>
diff --git a/sync/util/data_encryption_win.h b/sync/util/data_encryption_win.h
index f671ad8..87732ba 100644
--- a/sync/util/data_encryption_win.h
+++ b/sync/util/data_encryption_win.h
@@ -4,7 +4,6 @@
#ifndef SYNC_UTIL_DATA_ENCRYPTION_WIN_H_
#define SYNC_UTIL_DATA_ENCRYPTION_WIN_H_
-#pragma once
#include <string>
#include <vector>
diff --git a/sync/util/data_type_histogram.h b/sync/util/data_type_histogram.h
index 6a1b9c36..00a81df 100644
--- a/sync/util/data_type_histogram.h
+++ b/sync/util/data_type_histogram.h
@@ -4,7 +4,6 @@
#ifndef SYNC_UTIL_DATA_TYPE_HISTOGRAM_H_
#define SYNC_UTIL_DATA_TYPE_HISTOGRAM_H_
-#pragma once
#include "base/metrics/histogram.h"
#include "base/time.h"
diff --git a/sync/util/encryptor.h b/sync/util/encryptor.h
index 48d5d6c..d188a01 100644
--- a/sync/util/encryptor.h
+++ b/sync/util/encryptor.h
@@ -4,7 +4,6 @@
#ifndef SYNC_UTIL_ENCRYPTOR_H_
#define SYNC_UTIL_ENCRYPTOR_H_
-#pragma once
#include <string>
diff --git a/sync/util/extensions_activity_monitor.h b/sync/util/extensions_activity_monitor.h
index bb476e2e..f333b7b 100644
--- a/sync/util/extensions_activity_monitor.h
+++ b/sync/util/extensions_activity_monitor.h
@@ -4,7 +4,6 @@
#ifndef SYNC_UTIL_EXTENSIONS_ACTIVITY_MONITOR_H_
#define SYNC_UTIL_EXTENSIONS_ACTIVITY_MONITOR_H_
-#pragma once
#include <map>
#include <string>
diff --git a/sync/util/get_session_name.h b/sync/util/get_session_name.h
index 6e1b7dd..3b8dd5a 100644
--- a/sync/util/get_session_name.h
+++ b/sync/util/get_session_name.h
@@ -4,7 +4,6 @@
#ifndef SYNC_UTIL_GET_SESSION_NAME_H_
#define SYNC_UTIL_GET_SESSION_NAME_H_
-#pragma once
#include <string>
diff --git a/sync/util/get_session_name_mac.h b/sync/util/get_session_name_mac.h
index 6d5c27c..e0a81ed 100644
--- a/sync/util/get_session_name_mac.h
+++ b/sync/util/get_session_name_mac.h
@@ -4,7 +4,6 @@
#ifndef SYNC_UTIL_GET_SESSION_NAME_MAC_H_
#define SYNC_UTIL_GET_SESSION_NAME_MAC_H_
-#pragma once
#include <string>
diff --git a/sync/util/get_session_name_win.h b/sync/util/get_session_name_win.h
index 68b86f8..8ec903f 100644
--- a/sync/util/get_session_name_win.h
+++ b/sync/util/get_session_name_win.h
@@ -4,7 +4,6 @@
#ifndef SYNC_UTIL_GET_SESSION_NAME_WIN_H_
#define SYNC_UTIL_GET_SESSION_NAME_WIN_H_
-#pragma once
#include <string>
diff --git a/sync/util/logging.h b/sync/util/logging.h
index 900c08f..e6da535 100644
--- a/sync/util/logging.h
+++ b/sync/util/logging.h
@@ -4,7 +4,6 @@
#ifndef SYNC_UTIL_LOGGING_H_
#define SYNC_UTIL_LOGGING_H_
-#pragma once
#include "base/logging.h"
diff --git a/sync/util/nigori.h b/sync/util/nigori.h
index 312cfb3..a33f0b6 100644
--- a/sync/util/nigori.h
+++ b/sync/util/nigori.h
@@ -4,7 +4,6 @@
#ifndef SYNC_UTIL_NIGORI_H_
#define SYNC_UTIL_NIGORI_H_
-#pragma once
#include <string>
diff --git a/sync/util/session_utils_android.h b/sync/util/session_utils_android.h
index 412fab7..22f5767 100644
--- a/sync/util/session_utils_android.h
+++ b/sync/util/session_utils_android.h
@@ -4,7 +4,6 @@
#ifndef SYNC_UTIL_SESSION_UTILS_ANDROID_H_
#define SYNC_UTIL_SESSION_UTILS_ANDROID_H_
-#pragma once
#include <string>
diff --git a/sync/util/test_unrecoverable_error_handler.h b/sync/util/test_unrecoverable_error_handler.h
index bec0fc7..d36724e 100644
--- a/sync/util/test_unrecoverable_error_handler.h
+++ b/sync/util/test_unrecoverable_error_handler.h
@@ -4,7 +4,6 @@
#ifndef SYNC_INTERNAL_API_INCLUDES_TEST_UNRECOVERABLE_ERROR_HANDLER_H_
#define SYNC_INTERNAL_API_INCLUDES_TEST_UNRECOVERABLE_ERROR_HANDLER_H_
-#pragma once
#include "base/compiler_specific.h"
#include "sync/internal_api/public/util/unrecoverable_error_handler.h"
diff --git a/sync/util/time.h b/sync/util/time.h
index 1044a5b..8ba72a3 100644
--- a/sync/util/time.h
+++ b/sync/util/time.h
@@ -6,7 +6,6 @@
#ifndef SYNC_UTIL_TIME_H_
#define SYNC_UTIL_TIME_H_
-#pragma once
#include <string>