[Sync] Move 'sync' target to sync/

chrome/browser/sync/engine/syncer.cc

Index: chrome/browser/sync/engine/syncer.cc
diff --git a/chrome/browser/sync/engine/syncer.cc b/chrome/browser/sync/engine/syncer.cc
deleted file mode 100644
index 3fe46dc45c91246a5ab8f5ab5a97ce945667c158..0000000000000000000000000000000000000000
--- a/chrome/browser/sync/engine/syncer.cc
+++ /dev/null
@@ -1,345 +0,0 @@
-// 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 "chrome/browser/sync/engine/syncer.h"
-
-#include "base/debug/trace_event.h"
-#include "base/location.h"
-#include "base/logging.h"
-#include "base/message_loop.h"
-#include "base/time.h"
-#include "build/build_config.h"
-#include "chrome/browser/sync/engine/apply_updates_command.h"
-#include "chrome/browser/sync/engine/build_commit_command.h"
-#include "chrome/browser/sync/engine/cleanup_disabled_types_command.h"
-#include "chrome/browser/sync/engine/clear_data_command.h"
-#include "chrome/browser/sync/engine/conflict_resolver.h"
-#include "chrome/browser/sync/engine/download_updates_command.h"
-#include "chrome/browser/sync/engine/get_commit_ids_command.h"
-#include "chrome/browser/sync/engine/net/server_connection_manager.h"
-#include "chrome/browser/sync/engine/post_commit_message_command.h"
-#include "chrome/browser/sync/engine/process_commit_response_command.h"
-#include "chrome/browser/sync/engine/process_updates_command.h"
-#include "chrome/browser/sync/engine/resolve_conflicts_command.h"
-#include "chrome/browser/sync/engine/store_timestamps_command.h"
-#include "chrome/browser/sync/engine/syncer_types.h"
-#include "chrome/browser/sync/engine/syncproto.h"
-#include "chrome/browser/sync/engine/verify_updates_command.h"
-#include "chrome/browser/sync/syncable/syncable-inl.h"
-#include "chrome/browser/sync/syncable/syncable.h"
-
-using base::Time;
-using base::TimeDelta;
-using sync_pb::ClientCommand;
-using syncable::Blob;
-using syncable::IS_UNAPPLIED_UPDATE;
-using syncable::SERVER_CTIME;
-using syncable::SERVER_IS_DEL;
-using syncable::SERVER_IS_DIR;
-using syncable::SERVER_MTIME;
-using syncable::SERVER_NON_UNIQUE_NAME;
-using syncable::SERVER_PARENT_ID;
-using syncable::SERVER_POSITION_IN_PARENT;
-using syncable::SERVER_SPECIFICS;
-using syncable::SERVER_VERSION;
-using syncable::SYNCER;
-using syncable::WriteTransaction;
-
-namespace browser_sync {
-
-using sessions::ScopedSessionContextConflictResolver;
-using sessions::StatusController;
-using sessions::SyncSession;
-using sessions::ConflictProgress;
-
-#define ENUM_CASE(x) case x: return #x
-const char* SyncerStepToString(const SyncerStep step)
-{
-  switch (step) {
-    ENUM_CASE(SYNCER_BEGIN);
-    ENUM_CASE(CLEANUP_DISABLED_TYPES);
-    ENUM_CASE(DOWNLOAD_UPDATES);
-    ENUM_CASE(PROCESS_CLIENT_COMMAND);
-    ENUM_CASE(VERIFY_UPDATES);
-    ENUM_CASE(PROCESS_UPDATES);
-    ENUM_CASE(STORE_TIMESTAMPS);
-    ENUM_CASE(APPLY_UPDATES);
-    ENUM_CASE(BUILD_COMMIT_REQUEST);
-    ENUM_CASE(POST_COMMIT_MESSAGE);
-    ENUM_CASE(PROCESS_COMMIT_RESPONSE);
-    ENUM_CASE(RESOLVE_CONFLICTS);
-    ENUM_CASE(APPLY_UPDATES_TO_RESOLVE_CONFLICTS);
-    ENUM_CASE(CLEAR_PRIVATE_DATA);
-    ENUM_CASE(SYNCER_END);
-  }
-  NOTREACHED();
-  return "";
-}
-#undef ENUM_CASE
-
-Syncer::Syncer()
-    : early_exit_requested_(false) {
-}
-
-Syncer::~Syncer() {}
-
-bool Syncer::ExitRequested() {
-  base::AutoLock lock(early_exit_requested_lock_);
-  return early_exit_requested_;
-}
-
-void Syncer::RequestEarlyExit() {
-  base::AutoLock lock(early_exit_requested_lock_);
-  early_exit_requested_ = true;
-}
-
-void Syncer::SyncShare(sessions::SyncSession* session,
-                       SyncerStep first_step,
-                       SyncerStep last_step) {
-  ScopedSessionContextConflictResolver scoped(session->context(),
-                                              &resolver_);
-  session->mutable_status_controller()->UpdateStartTime();
-  SyncerStep current_step = first_step;
-
-  SyncerStep next_step = current_step;
-  while (!ExitRequested()) {
-    TRACE_EVENT1("sync", "SyncerStateMachine",
-                 "state", SyncerStepToString(current_step));
-    DVLOG(1) << "Syncer step:" << SyncerStepToString(current_step);
-
-    switch (current_step) {
-      case SYNCER_BEGIN:
-        // This isn't perfect, as we can end up bundling extensions activity
-        // intended for the next session into the current one.  We could do a
-        // test-and-reset as with the source, but note that also falls short if
-        // the commit request fails (e.g. due to lost connection), as we will
-        // fall all the way back to the syncer thread main loop in that case,
-        // creating a new session when a connection is established, losing the
-        // records set here on the original attempt.  This should provide us
-        // with the right data "most of the time", and we're only using this
-        // for analysis purposes, so Law of Large Numbers FTW.
-        session->context()->extensions_monitor()->GetAndClearRecords(
-            session->mutable_extensions_activity());
-        session->context()->PruneUnthrottledTypes(base::TimeTicks::Now());
-        session->SendEventNotification(SyncEngineEvent::SYNC_CYCLE_BEGIN);
-
-        next_step = CLEANUP_DISABLED_TYPES;
-        break;
-      case CLEANUP_DISABLED_TYPES: {
-        CleanupDisabledTypesCommand cleanup;
-        cleanup.Execute(session);
-        next_step = DOWNLOAD_UPDATES;
-        break;
-      }
-      case DOWNLOAD_UPDATES: {
-        // TODO(akalin): We may want to propagate this switch up
-        // eventually.
-#if defined(OS_ANDROID)
-        const bool kCreateMobileBookmarksFolder = true;
-#else
-        const bool kCreateMobileBookmarksFolder = false;
-#endif
-        DownloadUpdatesCommand download_updates(kCreateMobileBookmarksFolder);
-        session->mutable_status_controller()->set_last_download_updates_result(
-            download_updates.Execute(session));
-        next_step = PROCESS_CLIENT_COMMAND;
-        break;
-      }
-      case PROCESS_CLIENT_COMMAND: {
-        ProcessClientCommand(session);
-        next_step = VERIFY_UPDATES;
-        break;
-      }
-      case VERIFY_UPDATES: {
-        VerifyUpdatesCommand verify_updates;
-        verify_updates.Execute(session);
-        next_step = PROCESS_UPDATES;
-        break;
-      }
-      case PROCESS_UPDATES: {
-        ProcessUpdatesCommand process_updates;
-        process_updates.Execute(session);
-        next_step = STORE_TIMESTAMPS;
-        break;
-      }
-      case STORE_TIMESTAMPS: {
-        StoreTimestampsCommand store_timestamps;
-        store_timestamps.Execute(session);
-        // We should download all of the updates before attempting to process
-        // them.
-        if (session->status_controller().ServerSaysNothingMoreToDownload() ||
-            !session->status_controller().download_updates_succeeded()) {
-          next_step = APPLY_UPDATES;
-        } else {
-          next_step = DOWNLOAD_UPDATES;
-        }
-        break;
-      }
-      case APPLY_UPDATES: {
-        ApplyUpdatesCommand apply_updates;
-        apply_updates.Execute(session);
-        if (last_step == APPLY_UPDATES) {
-          // We're in configuration mode, but we still need to run the
-          // SYNCER_END step.
-          last_step = SYNCER_END;
-          next_step = SYNCER_END;
-        } else {
-          next_step = BUILD_COMMIT_REQUEST;
-        }
-        break;
-      }
-      // These two steps are combined since they are executed within the same
-      // write transaction.
-      case BUILD_COMMIT_REQUEST: {
-        syncable::Directory* dir = session->context()->directory();
-        WriteTransaction trans(FROM_HERE, SYNCER, dir);
-        sessions::ScopedSetSessionWriteTransaction set_trans(session, &trans);
-
-        DVLOG(1) << "Getting the Commit IDs";
-        GetCommitIdsCommand get_commit_ids_command(
-            session->context()->max_commit_batch_size());
-        get_commit_ids_command.Execute(session);
-
-        if (!session->status_controller().commit_ids().empty()) {
-          DVLOG(1) << "Building a commit message";
-          BuildCommitCommand build_commit_command;
-          build_commit_command.Execute(session);
-
-          next_step = POST_COMMIT_MESSAGE;
-        } else {
-          next_step = RESOLVE_CONFLICTS;
-        }
-
-        break;
-      }
-      case POST_COMMIT_MESSAGE: {
-        PostCommitMessageCommand post_commit_command;
-        session->mutable_status_controller()->set_last_post_commit_result(
-            post_commit_command.Execute(session));
-        next_step = PROCESS_COMMIT_RESPONSE;
-        break;
-      }
-      case PROCESS_COMMIT_RESPONSE: {
-        ProcessCommitResponseCommand process_response_command;
-        session->mutable_status_controller()->
-            set_last_process_commit_response_result(
-                process_response_command.Execute(session));
-        next_step = RESOLVE_CONFLICTS;
-        break;
-      }
-      case RESOLVE_CONFLICTS: {
-        StatusController* status = session->mutable_status_controller();
-        status->reset_conflicts_resolved();
-        ResolveConflictsCommand resolve_conflicts_command;
-        resolve_conflicts_command.Execute(session);
-
-        // Has ConflictingUpdates includes both resolvable and unresolvable
-        // conflicts. If we have either, we want to attempt to reapply.
-        if (status->HasConflictingUpdates())
-          next_step = APPLY_UPDATES_TO_RESOLVE_CONFLICTS;
-        else
-          next_step = SYNCER_END;
-        break;
-      }
-      case APPLY_UPDATES_TO_RESOLVE_CONFLICTS: {
-        StatusController* status = session->mutable_status_controller();
-        DVLOG(1) << "Applying updates to resolve conflicts";
-        ApplyUpdatesCommand apply_updates;
-
-        // We only care to resolve conflicts again if we made progress on the
-        // simple conflicts.
-        int before_blocking_conflicting_updates =
-            status->TotalNumSimpleConflictingItems();
-        apply_updates.Execute(session);
-        int after_blocking_conflicting_updates =
-            status->TotalNumSimpleConflictingItems();
-        // If the following call sets the conflicts_resolved value to true,
-        // SyncSession::HasMoreToSync() will send us into another sync cycle
-        // after this one completes.
-        //
-        // TODO(rlarocque, 109072): Make conflict resolution not require
-        // extra sync cycles/GetUpdates.
-        status->update_conflicts_resolved(before_blocking_conflicting_updates >
-                                          after_blocking_conflicting_updates);
-        next_step = SYNCER_END;
-        break;
-      }
-      case CLEAR_PRIVATE_DATA: {
-        ClearDataCommand clear_data_command;
-        clear_data_command.Execute(session);
-        next_step = SYNCER_END;
-        break;
-      }
-      case SYNCER_END: {
-        session->SendEventNotification(SyncEngineEvent::SYNC_CYCLE_ENDED);
-        next_step = SYNCER_END;
-        break;
-      }
-      default:
-        LOG(ERROR) << "Unknown command: " << current_step;
-    }
-    DVLOG(2) << "last step: " << SyncerStepToString(last_step) << ", "
-             << "current step: " << SyncerStepToString(current_step) << ", "
-             << "next step: " << SyncerStepToString(next_step) << ", "
-             << "snapshot: " << session->TakeSnapshot().ToString();
-    if (last_step == current_step)
-      break;
-    current_step = next_step;
-  }
-}
-
-void Syncer::ProcessClientCommand(sessions::SyncSession* session) {
-  const ClientToServerResponse& response =
-      session->status_controller().updates_response();
-  if (!response.has_client_command())
-    return;
-  const ClientCommand& command = response.client_command();
-
-  // The server limits the number of items a client can commit in one batch.
-  if (command.has_max_commit_batch_size()) {
-    session->context()->set_max_commit_batch_size(
-        command.max_commit_batch_size());
-  }
-  if (command.has_set_sync_long_poll_interval()) {
-    session->delegate()->OnReceivedLongPollIntervalUpdate(
-        TimeDelta::FromSeconds(command.set_sync_long_poll_interval()));
-  }
-  if (command.has_set_sync_poll_interval()) {
-    session->delegate()->OnReceivedShortPollIntervalUpdate(
-        TimeDelta::FromSeconds(command.set_sync_poll_interval()));
-  }
-
-  if (command.has_sessions_commit_delay_seconds()) {
-    session->delegate()->OnReceivedSessionsCommitDelay(
-        TimeDelta::FromSeconds(command.sessions_commit_delay_seconds()));
-  }
-}
-
-void CopyServerFields(syncable::Entry* src, syncable::MutableEntry* dest) {
-  dest->Put(SERVER_NON_UNIQUE_NAME, src->Get(SERVER_NON_UNIQUE_NAME));
-  dest->Put(SERVER_PARENT_ID, src->Get(SERVER_PARENT_ID));
-  dest->Put(SERVER_MTIME, src->Get(SERVER_MTIME));
-  dest->Put(SERVER_CTIME, src->Get(SERVER_CTIME));
-  dest->Put(SERVER_VERSION, src->Get(SERVER_VERSION));
-  dest->Put(SERVER_IS_DIR, src->Get(SERVER_IS_DIR));
-  dest->Put(SERVER_IS_DEL, src->Get(SERVER_IS_DEL));
-  dest->Put(IS_UNAPPLIED_UPDATE, src->Get(IS_UNAPPLIED_UPDATE));
-  dest->Put(SERVER_SPECIFICS, src->Get(SERVER_SPECIFICS));
-  dest->Put(SERVER_POSITION_IN_PARENT, src->Get(SERVER_POSITION_IN_PARENT));
-}
-
-void ClearServerData(syncable::MutableEntry* entry) {
-  entry->Put(SERVER_NON_UNIQUE_NAME, "");
-  entry->Put(SERVER_PARENT_ID, syncable::GetNullId());
-  entry->Put(SERVER_MTIME, Time());
-  entry->Put(SERVER_CTIME, Time());
-  entry->Put(SERVER_VERSION, 0);
-  entry->Put(SERVER_IS_DIR, false);
-  entry->Put(SERVER_IS_DEL, false);
-  entry->Put(IS_UNAPPLIED_UPDATE, false);
-  entry->Put(SERVER_SPECIFICS, sync_pb::EntitySpecifics::default_instance());
-  entry->Put(SERVER_POSITION_IN_PARENT, 0);
-}
-
-}  // namespace browser_sync