Abort sync cycles when download step fails

sync/engine/syncer_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.
 //
 // Syncer unit tests. Unfortunately a lot of these tests
 // are outdated and need to be reworked and updated.
 
 #include <algorithm>
 #include <limits>
 #include <list>
@@ skipping 15 matching lines @@
 #include "sync/engine/get_commit_ids_command.h"
 #include "sync/engine/model_safe_worker.h"
 #include "sync/engine/net/server_connection_manager.h"
 #include "sync/engine/nigori_util.h"
 #include "sync/engine/process_updates_command.h"
 #include "sync/engine/syncer.h"
 #include "sync/engine/syncer_proto_util.h"
 #include "sync/engine/syncer_util.h"
 #include "sync/engine/syncproto.h"
 #include "sync/engine/traffic_recorder.h"
+#include "sync/engine/sync_scheduler.h"
 #include "sync/protocol/bookmark_specifics.pb.h"
 #include "sync/protocol/nigori_specifics.pb.h"
 #include "sync/protocol/preference_specifics.pb.h"
 #include "sync/protocol/sync.pb.h"
 #include "sync/sessions/sync_session_context.h"
 #include "sync/syncable/model_type.h"
 #include "sync/syncable/syncable.h"
 #include "sync/test/engine/fake_model_worker.h"
 #include "sync/test/engine/mock_connection_manager.h"
 #include "sync/test/engine/test_directory_setter_upper.h"
@@ skipping 133 matching lines @@
     std::vector<ModelSafeWorker*> workers;
     GetModelSafeRoutingInfo(&info);
     GetWorkers(&workers);
     syncable::ModelTypePayloadMap types =
         syncable::ModelTypePayloadMapFromRoutingInfo(info, std::string());
     return new SyncSession(context_.get(), this,
         sessions::SyncSourceInfo(sync_pb::GetUpdatesCallerInfo::UNKNOWN, types),
         info, workers);
   }
 
-  bool SyncShareAsDelegate() {
+  bool SyncShareAsDelegate(
+      SyncScheduler::SyncSessionJob::SyncSessionJobPurpose purpose) {
+    SyncerStep start;
+    SyncerStep end;
+    SyncScheduler::SetSyncerStepsForPurpose(purpose, &start, &end);
+
     session_.reset(MakeSession());
-    syncer_->SyncShare(session_.get(), SYNCER_BEGIN, SYNCER_END);
+    syncer_->SyncShare(session_.get(), start, end);
     return session_->HasMoreToSync();
   }
 
+  bool SyncShareNudge() {
+    session_.reset(MakeSession());
+    return SyncShareAsDelegate(SyncScheduler::SyncSessionJob::NUDGE);
+  }
+
+  bool SyncShareConfigure() {
+    session_.reset(MakeSession());
+    return SyncShareAsDelegate(SyncScheduler::SyncSessionJob::CONFIGURATION);
+  }
+
   void LoopSyncShare() {
     bool should_loop = false;
     int loop_iterations = 0;
     do {
       ASSERT_LT(++loop_iterations, 100) << "infinite loop detected. please fix";
-      should_loop = SyncShareAsDelegate();
+      should_loop = SyncShareNudge();
     } while (should_loop);
   }
 
   virtual void SetUp() {
     dir_maker_.SetUp();
     mock_server_.reset(new MockConnectionManager(directory()));
     EnableDatatype(syncable::BOOKMARKS);
     EnableDatatype(syncable::NIGORI);
     EnableDatatype(syncable::PREFERENCES);
     EnableDatatype(syncable::NIGORI);
@@ skipping 324 matching lines @@
   // TODO(sync): When we can dynamically connect and disconnect the mock
   // ServerConnectionManager test disconnected GetUnsyncedEntries here. It's a
   // regression for a very old bug.
 }
 
 TEST_F(SyncerTest, GetCommitIdsCommandTruncates) {
   syncable::Id root = ids_.root();
   // Create two server entries.
   mock_server_->AddUpdateDirectory(ids_.MakeServer("x"), root, "X", 10, 10);
   mock_server_->AddUpdateDirectory(ids_.MakeServer("w"), root, "W", 10, 10);
-  SyncShareAsDelegate();
+  SyncShareNudge();
 
   // Create some new client entries.
   CreateUnsyncedDirectory("C", ids_.MakeLocal("c"));
   CreateUnsyncedDirectory("B", ids_.MakeLocal("b"));
   CreateUnsyncedDirectory("D", ids_.MakeLocal("d"));
   CreateUnsyncedDirectory("E", ids_.MakeLocal("e"));
   CreateUnsyncedDirectory("J", ids_.MakeLocal("j"));
 
   {
     WriteTransaction wtrans(FROM_HERE, UNITTEST, directory());
@@ skipping 33 matching lines @@
   expected_order.push_back(ids_.MakeLocal("e"));
   DoTruncationTest(unsynced_handle_view, expected_order);
 }
 
 TEST_F(SyncerTest, GetCommitIdsFiltersThrottledEntries) {
   const syncable::ModelTypeSet throttled_types(syncable::BOOKMARKS);
   sync_pb::EntitySpecifics bookmark_data;
   AddDefaultFieldValue(syncable::BOOKMARKS, &bookmark_data);
 
   mock_server_->AddUpdateDirectory(1, 0, "A", 10, 10);
-  SyncShareAsDelegate();
+  SyncShareNudge();
 
   {
     WriteTransaction wtrans(FROM_HERE, UNITTEST, directory());
     MutableEntry A(&wtrans, GET_BY_ID, ids_.FromNumber(1));
     ASSERT_TRUE(A.good());
     A.Put(IS_UNSYNCED, true);
     A.Put(SPECIFICS, bookmark_data);
     A.Put(NON_UNIQUE_NAME, "bookmark");
   }
 
   // Now set the throttled types.
   context_->SetUnthrottleTime(
       throttled_types,
       base::TimeTicks::Now() + base::TimeDelta::FromSeconds(1200));
-  SyncShareAsDelegate();
+  SyncShareNudge();
 
   {
     // Nothing should have been committed as bookmarks is throttled.
     ReadTransaction rtrans(FROM_HERE, directory());
     Entry entryA(&rtrans, syncable::GET_BY_ID, ids_.FromNumber(1));
     ASSERT_TRUE(entryA.good());
     EXPECT_TRUE(entryA.Get(IS_UNSYNCED));
   }
 
   // Now unthrottle.
   context_->SetUnthrottleTime(
       throttled_types,
       base::TimeTicks::Now() - base::TimeDelta::FromSeconds(1200));
-  SyncShareAsDelegate();
+  SyncShareNudge();
   {
     // It should have been committed.
     ReadTransaction rtrans(FROM_HERE, directory());
     Entry entryA(&rtrans, syncable::GET_BY_ID, ids_.FromNumber(1));
     ASSERT_TRUE(entryA.good());
     EXPECT_FALSE(entryA.Get(IS_UNSYNCED));
   }
 }
 
 // We use a macro so we can preserve the error location.
@@ skipping 19 matching lines @@
   KeyParams key_params = {"localhost", "dummy", "foobar"};
   KeyParams other_params = {"localhost", "dummy", "foobar2"};
   sync_pb::EntitySpecifics bookmark, encrypted_bookmark;
   bookmark.mutable_bookmark()->set_url("url");
   bookmark.mutable_bookmark()->set_title("title");
   AddDefaultFieldValue(syncable::BOOKMARKS, &encrypted_bookmark);
   mock_server_->AddUpdateDirectory(1, 0, "A", 10, 10);
   mock_server_->AddUpdateDirectory(2, 0, "B", 10, 10);
   mock_server_->AddUpdateDirectory(3, 0, "C", 10, 10);
   mock_server_->AddUpdateDirectory(4, 0, "D", 10, 10);
-  SyncShareAsDelegate();
+  SyncShareNudge();
   // Server side change will put A in conflict.
   mock_server_->AddUpdateDirectory(1, 0, "A", 20, 20);
   {
     // Mark bookmarks as encrypted and set the cryptographer to have pending
     // keys.
     WriteTransaction wtrans(FROM_HERE, UNITTEST, directory());
     browser_sync::Cryptographer other_cryptographer(&encryptor_);
     other_cryptographer.AddKey(other_params);
     sync_pb::EntitySpecifics specifics;
     sync_pb::NigoriSpecifics* nigori = specifics.mutable_nigori();
@@ skipping 22 matching lines @@
     ASSERT_TRUE(C.good());
     C.Put(IS_UNSYNCED, true);
     C.Put(NON_UNIQUE_NAME, kEncryptedString);
     // Unencrypted non_unique_name.
     MutableEntry D(&wtrans, GET_BY_ID, ids_.FromNumber(4));
     ASSERT_TRUE(D.good());
     D.Put(IS_UNSYNCED, true);
     D.Put(SPECIFICS, encrypted_bookmark);
     D.Put(NON_UNIQUE_NAME, "not encrypted");
   }
-  SyncShareAsDelegate();
+  SyncShareNudge();
   {
     // We remove any unready entries from the status controller's unsynced
     // handles, so this should remain 0 even though the entries didn't commit.
     EXPECT_EQ(0U, session_->status_controller().unsynced_handles().size());
     // Nothing should have commited due to bookmarks being encrypted and
     // the cryptographer having pending keys. A would have been resolved
     // as a simple conflict, but still be unsynced until the next sync cycle.
     ReadTransaction rtrans(FROM_HERE, directory());
     VERIFY_ENTRY(1, false, true, false, 0, 20, 20, ids_, &rtrans);
     VERIFY_ENTRY(2, false, true, false, 0, 10, 10, ids_, &rtrans);
     VERIFY_ENTRY(3, false, true, false, 0, 10, 10, ids_, &rtrans);
     VERIFY_ENTRY(4, false, true, false, 0, 10, 10, ids_, &rtrans);
 
     // Resolve the pending keys.
     cryptographer(&rtrans)->DecryptPendingKeys(other_params);
   }
-  SyncShareAsDelegate();
+  SyncShareNudge();
   {
     // 2 unsynced handles to reflect the items that committed succesfully.
     EXPECT_EQ(2U, session_->status_controller().unsynced_handles().size());
     // All properly encrypted and non-conflicting items should commit. "A" was
     // conflicting, but last sync cycle resolved it as simple conflict, so on
     // this sync cycle it committed succesfullly.
     ReadTransaction rtrans(FROM_HERE, directory());
     // Committed successfully.
     VERIFY_ENTRY(1, false, false, false, 0, 21, 21, ids_, &rtrans);
     // Committed successfully.
     VERIFY_ENTRY(2, false, false, false, 0, 11, 11, ids_, &rtrans);
     // Was not properly encrypted.
     VERIFY_ENTRY(3, false, true, false, 0, 10, 10, ids_, &rtrans);
     // Was not properly encrypted.
     VERIFY_ENTRY(4, false, true, false, 0, 10, 10, ids_, &rtrans);
   }
   {
     // Fix the remaining items.
     WriteTransaction wtrans(FROM_HERE, UNITTEST, directory());
     MutableEntry C(&wtrans, GET_BY_ID, ids_.FromNumber(3));
     ASSERT_TRUE(C.good());
     C.Put(SPECIFICS, encrypted_bookmark);
     C.Put(NON_UNIQUE_NAME, kEncryptedString);
     MutableEntry D(&wtrans, GET_BY_ID, ids_.FromNumber(4));
     ASSERT_TRUE(D.good());
     D.Put(SPECIFICS, encrypted_bookmark);
     D.Put(NON_UNIQUE_NAME, kEncryptedString);
   }
-  SyncShareAsDelegate();
+  SyncShareNudge();
   {
     // We attempted to commit two items.
     EXPECT_EQ(2U, session_->status_controller().unsynced_handles().size());
     EXPECT_TRUE(session_->status_controller().did_commit_items());
     // None should be unsynced anymore.
     ReadTransaction rtrans(FROM_HERE, directory());
     VERIFY_ENTRY(1, false, false, false, 0, 21, 21, ids_, &rtrans);
     VERIFY_ENTRY(2, false, false, false, 0, 11, 11, ids_, &rtrans);
     VERIFY_ENTRY(3, false, false, false, 0, 11, 11, ids_, &rtrans);
     VERIFY_ENTRY(4, false, false, false, 0, 11, 11, ids_, &rtrans);
@@ skipping 30 matching lines @@
     nigori->set_encrypt_bookmarks(true);
     nigori->set_encrypt_preferences(true);
     cryptographer(&wtrans)->Update(*nigori);
     EXPECT_TRUE(cryptographer(&wtrans)->has_pending_keys());
   }
 
   mock_server_->AddUpdateSpecifics(1, 0, "A", 10, 10, true, 0, bookmark);
   mock_server_->AddUpdateSpecifics(2, 1, "B", 10, 10, false, 2, bookmark);
   mock_server_->AddUpdateSpecifics(3, 1, "C", 10, 10, false, 1, bookmark);
   mock_server_->AddUpdateSpecifics(4, 0, "D", 10, 10, false, 0, pref);
-  SyncShareAsDelegate();
+  SyncShareNudge();
   {
     EXPECT_EQ(0U, session_->status_controller().unsynced_handles().size());
     // Initial state. Everything is normal.
     ReadTransaction rtrans(FROM_HERE, directory());
     VERIFY_ENTRY(1, false, false, false, 0, 10, 10, ids_, &rtrans);
     VERIFY_ENTRY(2, false, false, false, 1, 10, 10, ids_, &rtrans);
     VERIFY_ENTRY(3, false, false, false, 1, 10, 10, ids_, &rtrans);
     VERIFY_ENTRY(4, false, false, false, 0, 10, 10, ids_, &rtrans);
   }
 
   // Server side encryption will not be applied due to undecryptable data.
   // At this point, BASE_SERVER_SPECIFICS should be filled for all four items.
   mock_server_->AddUpdateSpecifics(1, 0, kEncryptedString, 20, 20, true, 0,
                                    encrypted_bookmark);
   mock_server_->AddUpdateSpecifics(2, 1, kEncryptedString, 20, 20, false, 2,
                                    encrypted_bookmark);
   mock_server_->AddUpdateSpecifics(3, 1, kEncryptedString, 20, 20, false, 1,
                                    encrypted_bookmark);
   mock_server_->AddUpdateSpecifics(4, 0, kEncryptedString, 20, 20, false, 0,
                                    encrypted_pref);
-  SyncShareAsDelegate();
+  SyncShareNudge();
   {
     EXPECT_EQ(0U, session_->status_controller().unsynced_handles().size());
     // All should be unapplied due to being undecryptable and have a valid
     // BASE_SERVER_SPECIFICS.
     ReadTransaction rtrans(FROM_HERE, directory());
     VERIFY_ENTRY(1, true, false, true, 0, 10, 20, ids_, &rtrans);
     VERIFY_ENTRY(2, true, false, true, 1, 10, 20, ids_, &rtrans);
     VERIFY_ENTRY(3, true, false, true, 1, 10, 20, ids_, &rtrans);
     VERIFY_ENTRY(4, true, false, true, 0, 10, 20, ids_, &rtrans);
   }
 
   // Server side change that don't modify anything should not affect
   // BASE_SERVER_SPECIFICS (such as name changes and mtime changes).
   mock_server_->AddUpdateSpecifics(1, 0, kEncryptedString, 30, 30, true, 0,
                                    encrypted_bookmark);
   mock_server_->AddUpdateSpecifics(2, 1, kEncryptedString, 30, 30, false, 2,
                                    encrypted_bookmark);
   // Item 3 doesn't change.
   mock_server_->AddUpdateSpecifics(4, 0, kEncryptedString, 30, 30, false, 0,
                                    encrypted_pref);
-  SyncShareAsDelegate();
+  SyncShareNudge();
   {
     EXPECT_EQ(0U, session_->status_controller().unsynced_handles().size());
     // Items 1, 2, and 4 should have newer server versions, 3 remains the same.
     // All should remain unapplied due to be undecryptable.
     ReadTransaction rtrans(FROM_HERE, directory());
     VERIFY_ENTRY(1, true, false, true, 0, 10, 30, ids_, &rtrans);
     VERIFY_ENTRY(2, true, false, true, 1, 10, 30, ids_, &rtrans);
     VERIFY_ENTRY(3, true, false, true, 1, 10, 20, ids_, &rtrans);
     VERIFY_ENTRY(4, true, false, true, 0, 10, 30, ids_, &rtrans);
   }
 
   // Positional changes, parent changes, and specifics changes should reset
   // BASE_SERVER_SPECIFICS.
   // Became unencrypted.
   mock_server_->AddUpdateSpecifics(1, 0, "A", 40, 40, true, 0, bookmark);
   // Reordered to after item 2.
   mock_server_->AddUpdateSpecifics(3, 1, kEncryptedString, 30, 30, false, 3,
                                    encrypted_bookmark);
-  SyncShareAsDelegate();
+  SyncShareNudge();
   {
     EXPECT_EQ(0U, session_->status_controller().unsynced_handles().size());
     // Items 2 and 4 should be the only ones with BASE_SERVER_SPECIFICS set.
     // Items 1 is now unencrypted, so should have applied normally.
     ReadTransaction rtrans(FROM_HERE, directory());
     VERIFY_ENTRY(1, false, false, false, 0, 40, 40, ids_, &rtrans);
     VERIFY_ENTRY(2, true, false, true, 1, 10, 30, ids_, &rtrans);
     VERIFY_ENTRY(3, true, false, false, 1, 10, 30, ids_, &rtrans);
     VERIFY_ENTRY(4, true, false, true, 0, 10, 30, ids_, &rtrans);
   }
@@ skipping 15 matching lines @@
     ASSERT_TRUE(C.good());
     C.Put(SPECIFICS, modified_bookmark);
     C.Put(NON_UNIQUE_NAME, kEncryptedString);
     C.Put(IS_UNSYNCED, true);
     MutableEntry D(&wtrans, GET_BY_ID, ids_.FromNumber(4));
     ASSERT_TRUE(D.good());
     D.Put(SPECIFICS, modified_pref);
     D.Put(NON_UNIQUE_NAME, kEncryptedString);
     D.Put(IS_UNSYNCED, true);
   }
-  SyncShareAsDelegate();
+  SyncShareNudge();
   {
     EXPECT_EQ(0U, session_->status_controller().unsynced_handles().size());
     // Item 1 remains unsynced due to there being pending keys.
     // Items 2, 3, 4 should remain unsynced since they were not up to date.
     ReadTransaction rtrans(FROM_HERE, directory());
     VERIFY_ENTRY(1, false, true, false, 0, 40, 40, ids_, &rtrans);
     VERIFY_ENTRY(2, true, true, true, 1, 10, 30, ids_, &rtrans);
     VERIFY_ENTRY(3, true, true, false, 1, 10, 30, ids_, &rtrans);
     VERIFY_ENTRY(4, true, true, true, 0, 10, 30, ids_, &rtrans);
   }
 
   {
     ReadTransaction rtrans(FROM_HERE, directory());
     // Resolve the pending keys.
     cryptographer(&rtrans)->DecryptPendingKeys(key_params);
   }
   // First cycle resolves conflicts, second cycle commits changes.
-  SyncShareAsDelegate();
+  SyncShareNudge();
   EXPECT_EQ(2, session_->status_controller().syncer_status().
       num_server_overwrites);
   EXPECT_EQ(1, session_->status_controller().syncer_status().
       num_local_overwrites);
   // We attempted to commit item 1.
   EXPECT_EQ(1U, session_->status_controller().unsynced_handles().size());
   EXPECT_TRUE(session_->status_controller().did_commit_items());
-  SyncShareAsDelegate();
+  SyncShareNudge();
   {
     // Everything should be resolved now. The local changes should have
     // overwritten the server changes for 2 and 4, while the server changes
     // overwrote the local for entry 3.
     // We attempted to commit two handles.
     EXPECT_EQ(0, session_->status_controller().syncer_status().
         num_server_overwrites);
     EXPECT_EQ(0, session_->status_controller().syncer_status().
         num_local_overwrites);
     EXPECT_EQ(2U, session_->status_controller().unsynced_handles().size());
@@ skipping 24 matching lines @@
       other_encrypted_specifics.mutable_encrypted());
   sync_pb::EntitySpecifics our_encrypted_specifics;
   our_encrypted_specifics.mutable_bookmark()->set_title("title2");
   syncable::ModelTypeSet encrypted_types = syncable::ModelTypeSet::All();
 
 
   // Receive the initial nigori node.
   sync_pb::EntitySpecifics initial_nigori_specifics;
   initial_nigori_specifics.mutable_nigori();
   mock_server_->SetNigori(1, 10, 10, initial_nigori_specifics);
-  SyncShareAsDelegate();
+  SyncShareNudge();
 
   {
     // Set up the current nigori node (containing both keys and encrypt
     // everything).
     WriteTransaction wtrans(FROM_HERE, UNITTEST, directory());
     sync_pb::EntitySpecifics specifics;
     sync_pb::NigoriSpecifics* nigori = specifics.mutable_nigori();
     cryptographer(&wtrans)->AddKey(old_key);
     cryptographer(&wtrans)->AddKey(current_key);
     cryptographer(&wtrans)->Encrypt(
         our_encrypted_specifics,
         our_encrypted_specifics.mutable_encrypted());
     cryptographer(&wtrans)->GetKeys(
         nigori->mutable_encrypted());
     cryptographer(&wtrans)->set_encrypt_everything();
     cryptographer(&wtrans)->UpdateNigoriFromEncryptedTypes(nigori);
     MutableEntry nigori_entry(&wtrans, GET_BY_SERVER_TAG,
                               syncable::ModelTypeToRootTag(syncable::NIGORI));
     ASSERT_TRUE(nigori_entry.good());
     nigori_entry.Put(SPECIFICS, specifics);
     nigori_entry.Put(IS_UNSYNCED, true);
     EXPECT_FALSE(cryptographer(&wtrans)->has_pending_keys());
     EXPECT_TRUE(encrypted_types.Equals(
         cryptographer(&wtrans)->GetEncryptedTypes()));
   }
 
-  SyncShareAsDelegate();  // Commit it.
+  SyncShareNudge();  // Commit it.
 
   // Now set up the old nigori node and add it as a server update.
   sync_pb::EntitySpecifics old_nigori_specifics;
   sync_pb::NigoriSpecifics *old_nigori = old_nigori_specifics.mutable_nigori();
   other_cryptographer.GetKeys(old_nigori->mutable_encrypted());
   other_cryptographer.UpdateNigoriFromEncryptedTypes(old_nigori);
   mock_server_->SetNigori(1, 30, 30, old_nigori_specifics);
 
-  SyncShareAsDelegate();  // Download the old nigori and apply it.
+  SyncShareNudge();  // Download the old nigori and apply it.
 
   {
     // Ensure everything is committed and stable now. The cryptographer
     // should be able to decrypt both sets of keys and still be encrypting with
     // the newest, and the encrypted types should be the most recent
     ReadTransaction trans(FROM_HERE, directory());
     Entry nigori_entry(&trans, GET_BY_SERVER_TAG,
                        syncable::ModelTypeToRootTag(syncable::NIGORI));
     ASSERT_TRUE(nigori_entry.good());
     EXPECT_FALSE(nigori_entry.Get(IS_UNAPPLIED_UPDATE));
@@ skipping 28 matching lines @@
   // Data for testing encryption/decryption.
   sync_pb::EntitySpecifics other_encrypted_specifics;
   other_encrypted_specifics.mutable_bookmark()->set_title("title");
   other_cryptographer.Encrypt(
       other_encrypted_specifics,
       other_encrypted_specifics.mutable_encrypted());
   sync_pb::EntitySpecifics our_encrypted_specifics;
   our_encrypted_specifics.mutable_bookmark()->set_title("title2");
 
   // Receive the initial nigori node.
-  SyncShareAsDelegate();
+  SyncShareNudge();
   encrypted_types = syncable::ModelTypeSet::All();
   {
     // Local changes with different passphrase, different types, and sync_tabs.
     WriteTransaction wtrans(FROM_HERE, UNITTEST, directory());
     sync_pb::EntitySpecifics specifics;
     sync_pb::NigoriSpecifics* nigori = specifics.mutable_nigori();
     cryptographer(&wtrans)->AddKey(local_key_params);
     cryptographer(&wtrans)->Encrypt(
         our_encrypted_specifics,
         our_encrypted_specifics.mutable_encrypted());
@@ skipping 20 matching lines @@
     nigori->set_encrypt_everything(false);
     nigori->set_using_explicit_passphrase(true);
     mock_server_->SetNigori(1, 20, 20, specifics);
   }
 
   // Will result in downloading the server nigori, which puts the local nigori
   // in a state of conflict. This is resolved by merging the local and server
   // data (with priority given to the server's encryption keys if they are
   // undecryptable), which we then commit. The cryptographer should have pending
   // keys and merge the set of encrypted types.
-  SyncShareAsDelegate();  // Resolve conflict in this cycle.
-  SyncShareAsDelegate();  // Commit local change in this cycle.
+  SyncShareNudge();  // Resolve conflict in this cycle.
+  SyncShareNudge();  // Commit local change in this cycle.
   {
     // Ensure the nigori data merged (encrypted types, sync_tabs).
     WriteTransaction wtrans(FROM_HERE, UNITTEST, directory());
     MutableEntry nigori_entry(&wtrans, GET_BY_SERVER_TAG,
                               syncable::ModelTypeToRootTag(syncable::NIGORI));
     ASSERT_TRUE(nigori_entry.good());
     EXPECT_FALSE(nigori_entry.Get(IS_UNAPPLIED_UPDATE));
     EXPECT_FALSE(nigori_entry.Get(IS_UNSYNCED));
     sync_pb::EntitySpecifics specifics = nigori_entry.Get(SPECIFICS);
     EXPECT_TRUE(cryptographer(&wtrans)->has_pending_keys());
     EXPECT_TRUE(encrypted_types.Equals(
             cryptographer(&wtrans)->GetEncryptedTypes()));
     EXPECT_TRUE(cryptographer(&wtrans)->encrypt_everything());
     EXPECT_TRUE(specifics.nigori().sync_tabs());
     EXPECT_TRUE(specifics.nigori().using_explicit_passphrase());
     // Supply the pending keys. Afterwards, we should be able to decrypt both
     // our own encrypted data and data encrypted by the other cryptographer,
     // but the key provided by the other cryptographer should be the default.
     EXPECT_TRUE(cryptographer(&wtrans)->DecryptPendingKeys(other_key_params));
     EXPECT_FALSE(cryptographer(&wtrans)->has_pending_keys());
     sync_pb::NigoriSpecifics* nigori = specifics.mutable_nigori();
     cryptographer(&wtrans)->GetKeys(nigori->mutable_encrypted());
     cryptographer(&wtrans)->UpdateNigoriFromEncryptedTypes(nigori);
     // Normally this would be written as part of SetPassphrase, but we do it
     // manually for the test.
     nigori_entry.Put(SPECIFICS, specifics);
     nigori_entry.Put(IS_UNSYNCED, true);
   }
 
-  SyncShareAsDelegate();
+  SyncShareNudge();
   {
     // Ensure everything is committed and stable now. The cryptographer
     // should be able to decrypt both sets of keys, sync_tabs should be true,
     // and the encrypted types should have been unioned.
     WriteTransaction wtrans(FROM_HERE, UNITTEST, directory());
     MutableEntry nigori_entry(&wtrans, GET_BY_SERVER_TAG,
                               syncable::ModelTypeToRootTag(syncable::NIGORI));
     ASSERT_TRUE(nigori_entry.good());
     EXPECT_FALSE(nigori_entry.Get(IS_UNAPPLIED_UPDATE));
     EXPECT_FALSE(nigori_entry.Get(IS_UNSYNCED));
@@ skipping 568 matching lines @@
     EXPECT_TRUE(entry_b.Get(syncable::ID).ServerKnows());
     EXPECT_TRUE(parent2.Get(syncable::ID) == entry_b.Get(syncable::PARENT_ID));
   }
 }
 
 TEST_F(SyncerTest, UpdateWithZeroLengthName) {
   // One illegal update
   mock_server_->AddUpdateDirectory(1, 0, "", 1, 10);
   // And one legal one that we're going to delete.
   mock_server_->AddUpdateDirectory(2, 0, "FOO", 1, 10);
-  SyncShareAsDelegate();
+  SyncShareNudge();
   // Delete the legal one. The new update has a null name.
   mock_server_->AddUpdateDirectory(2, 0, "", 2, 20);
   mock_server_->SetLastUpdateDeleted();
-  SyncShareAsDelegate();
+  SyncShareNudge();
 }
 
 TEST_F(SyncerTest, TestBasicUpdate) {
   string id = "some_id";
   string parent_id = "0";
   string name = "in_root";
   int64 version = 10;
   int64 timestamp = 10;
   mock_server_->AddUpdateDirectory(id, parent_id, name, version, timestamp);
 
-  SyncShareAsDelegate();
+  SyncShareNudge();
   {
     WriteTransaction trans(FROM_HERE, UNITTEST, directory());
     Entry entry(&trans, GET_BY_ID,
                syncable::Id::CreateFromServerId("some_id"));
     ASSERT_TRUE(entry.good());
     EXPECT_TRUE(entry.Get(IS_DIR));
     EXPECT_TRUE(entry.Get(SERVER_VERSION) == version);
     EXPECT_TRUE(entry.Get(BASE_VERSION) == version);
     EXPECT_FALSE(entry.Get(IS_UNAPPLIED_UPDATE));
     EXPECT_FALSE(entry.Get(IS_UNSYNCED));
@@ skipping 157 matching lines @@
 
     MutableEntry entry(&trans, CREATE, parent.Get(ID), "new_entry");
     ASSERT_TRUE(entry.good());
     metahandle_new_entry = entry.Get(META_HANDLE);
     WriteTestDataToEntry(&trans, &entry);
   }
 
   // Mix in a directory creation too for later.
   mock_server_->AddUpdateDirectory(2, 0, "dir_in_root", 10, 10);
   mock_server_->SetCommitTimeRename("renamed_");
-  SyncShareAsDelegate();
+  SyncShareNudge();
 
   // Verify it was correctly renamed.
   {
     ReadTransaction trans(FROM_HERE, directory());
     Entry entry_folder(&trans, GET_BY_HANDLE, metahandle_folder);
     ASSERT_TRUE(entry_folder.good());
     EXPECT_EQ("renamed_Folder", entry_folder.Get(NON_UNIQUE_NAME));
 
     Entry entry_new(&trans, GET_BY_HANDLE, metahandle_new_entry);
     ASSERT_TRUE(entry_new.good());
@@ skipping 20 matching lines @@
     WriteTransaction trans(FROM_HERE, UNITTEST, directory());
     MutableEntry parent(&trans, CREATE, root_id_, "Folder");
     ASSERT_TRUE(parent.good());
     parent.Put(IS_DIR, true);
     parent.Put(SPECIFICS, DefaultBookmarkSpecifics());
     parent.Put(IS_UNSYNCED, true);
     metahandle = parent.Get(META_HANDLE);
   }
 
   mock_server_->SetCommitTimeRename(i18nString);
-  SyncShareAsDelegate();
+  SyncShareNudge();
 
   // Verify it was correctly renamed.
   {
     ReadTransaction trans(FROM_HERE, directory());
     string expected_folder_name(i18nString);
     expected_folder_name.append("Folder");
 
 
     Entry entry_folder(&trans, GET_BY_HANDLE, metahandle);
     ASSERT_TRUE(entry_folder.good());
@@ skipping 59 matching lines @@
   // well as reassociate the id.
   mock_server_->AddUpdateDirectory(new_folder_id, root_id_,
       "new_folder", new_version, timestamp);
   mock_server_->SetLastUpdateOriginatorFields(
       directory()->cache_guid(), folder_id.GetServerId());
 
   // We don't want it accidentally committed, just the update applied.
   mock_server_->set_conflict_all_commits(true);
 
   // Alright! Apply that update!
-  SyncShareAsDelegate();
+  SyncShareNudge();
   {
     // The folder's ID should have been updated.
     ReadTransaction trans(FROM_HERE, directory());
     Entry folder(&trans, GET_BY_HANDLE, metahandle_folder);
     ASSERT_TRUE(folder.good());
     EXPECT_EQ("new_folder", folder.Get(NON_UNIQUE_NAME));
     EXPECT_TRUE(new_version == folder.Get(BASE_VERSION));
     EXPECT_TRUE(new_folder_id == folder.Get(ID));
     EXPECT_TRUE(folder.Get(ID).ServerKnows());
     EXPECT_EQ(trans.root_id(), folder.Get(PARENT_ID));
@@ skipping 45 matching lines @@
   // Generate an update from the server with a relevant ID reassignment.
   mock_server_->AddUpdateBookmark(new_entry_id, root_id_,
       "new_entry", new_version, timestamp);
   mock_server_->SetLastUpdateOriginatorFields(
       directory()->cache_guid(), entry_id.GetServerId());
 
   // We don't want it accidentally committed, just the update applied.
   mock_server_->set_conflict_all_commits(true);
 
   // Alright! Apply that update!
-  SyncShareAsDelegate();
+  SyncShareNudge();
   {
     ReadTransaction trans(FROM_HERE, directory());
     Entry entry(&trans, GET_BY_HANDLE, entry_metahandle);
     ASSERT_TRUE(entry.good());
     EXPECT_TRUE(new_version == entry.Get(BASE_VERSION));
     EXPECT_TRUE(new_entry_id == entry.Get(ID));
     EXPECT_EQ("new_entry", entry.Get(NON_UNIQUE_NAME));
   }
 }
 
@@ skipping 42 matching lines @@
   {
     WriteTransaction trans(FROM_HERE, UNITTEST, directory());
     Id new_entry_id = GetOnlyEntryWithName(
         &trans, trans.root_id(), "new_entry");
     MutableEntry entry(&trans, GET_BY_ID, new_entry_id);
     ASSERT_TRUE(entry.good());
     entry.Put(syncable::IS_DEL, true);
   }
 
   // Just don't CHECK fail in sync, have the update split.
-  SyncShareAsDelegate();
+  SyncShareNudge();
   {
     ReadTransaction trans(FROM_HERE, directory());
     Id new_entry_id = GetOnlyEntryWithName(
         &trans, trans.root_id(), "new_entry");
     Entry entry(&trans, GET_BY_ID, new_entry_id);
     ASSERT_TRUE(entry.good());
     EXPECT_FALSE(entry.Get(IS_DEL));
 
     Entry old_entry(&trans, GET_BY_ID, entry_id);
     ASSERT_TRUE(old_entry.good());
     EXPECT_TRUE(old_entry.Get(IS_DEL));
   }
 }
 
 // TODO(chron): Add more unsanitized name tests.
 TEST_F(SyncerTest, ConflictMatchingEntryHandlesUnsanitizedNames) {
   mock_server_->AddUpdateDirectory(1, 0, "A/A", 10, 10);
   mock_server_->AddUpdateDirectory(2, 0, "B/B", 10, 10);
   mock_server_->set_conflict_all_commits(true);
-  SyncShareAsDelegate();
+  SyncShareNudge();
   {
     WriteTransaction wtrans(FROM_HERE, UNITTEST, directory());
 
     MutableEntry A(&wtrans, GET_BY_ID, ids_.FromNumber(1));
     ASSERT_TRUE(A.good());
     A.Put(IS_UNSYNCED, true);
     A.Put(IS_UNAPPLIED_UPDATE, true);
     A.Put(SERVER_VERSION, 20);
 
     MutableEntry B(&wtrans, GET_BY_ID, ids_.FromNumber(2));
@@ skipping 19 matching lines @@
     EXPECT_TRUE(B.Get(IS_UNSYNCED) == false);
     EXPECT_TRUE(B.Get(IS_UNAPPLIED_UPDATE) == false);
     EXPECT_TRUE(B.Get(SERVER_VERSION) == 20);
   }
 }
 
 TEST_F(SyncerTest, ConflictMatchingEntryHandlesNormalNames) {
   mock_server_->AddUpdateDirectory(1, 0, "A", 10, 10);
   mock_server_->AddUpdateDirectory(2, 0, "B", 10, 10);
   mock_server_->set_conflict_all_commits(true);
-  SyncShareAsDelegate();
+  SyncShareNudge();
   {
     WriteTransaction wtrans(FROM_HERE, UNITTEST, directory());
 
     MutableEntry A(&wtrans, GET_BY_ID, ids_.FromNumber(1));
     ASSERT_TRUE(A.good());
     A.Put(IS_UNSYNCED, true);
     A.Put(IS_UNAPPLIED_UPDATE, true);
     A.Put(SERVER_VERSION, 20);
 
     MutableEntry B(&wtrans, GET_BY_ID, ids_.FromNumber(2));
@@ skipping 83 matching lines @@
     Id child_id =
         GetOnlyEntryWithName(&trans, parent_entry.Get(ID), "bob");
     Entry child(&trans, syncable::GET_BY_ID, child_id);
     ASSERT_TRUE(child.good());
     EXPECT_EQ(parent_entry.Get(ID), child.Get(PARENT_ID));
 }
 }
 
 TEST_F(SyncerTest, NegativeIDInUpdate) {
   mock_server_->AddUpdateBookmark(-10, 0, "bad", 40, 40);
-  SyncShareAsDelegate();
+  SyncShareNudge();
   // The negative id would make us CHECK!
 }
 
 TEST_F(SyncerTest, UnappliedUpdateOnCreatedItemItemDoesNotCrash) {
   int64 metahandle_fred;
   {
     // Create an item.
     WriteTransaction trans(FROM_HERE, UNITTEST, directory());
     MutableEntry fred_match(&trans, CREATE, trans.root_id(),
                             "fred_match");
     ASSERT_TRUE(fred_match.good());
     metahandle_fred = fred_match.Get(META_HANDLE);
     WriteTestDataToEntry(&trans, &fred_match);
   }
   // Commit it.
-  SyncShareAsDelegate();
+  SyncShareNudge();
   EXPECT_EQ(1u, mock_server_->committed_ids().size());
   mock_server_->set_conflict_all_commits(true);
   syncable::Id fred_match_id;
   {
     // Now receive a change from outside.
     WriteTransaction trans(FROM_HERE, UNITTEST, directory());
     MutableEntry fred_match(&trans, GET_BY_HANDLE, metahandle_fred);
     ASSERT_TRUE(fred_match.good());
     EXPECT_TRUE(fred_match.Get(ID).ServerKnows());
     fred_match_id = fred_match.Get(ID);
     mock_server_->AddUpdateBookmark(fred_match_id, trans.root_id(),
         "fred_match", 40, 40);
   }
   // Run the syncer.
   for (int i = 0 ; i < 30 ; ++i) {
-    SyncShareAsDelegate();
+    SyncShareNudge();
   }
 }
 
 /**
  * In the event that we have a double changed entry, that is changed on both
  * the client and the server, the conflict resolver should just drop one of
  * them and accept the other.
  */
 
 TEST_F(SyncerTest, DoublyChangedWithResolver) {
@@ skipping 42 matching lines @@
     WriteTransaction wtrans(FROM_HERE, UNITTEST, directory());
     MutableEntry entry(&wtrans, syncable::CREATE, root_id_, "Pete");
     ASSERT_TRUE(entry.good());
     EXPECT_FALSE(entry.Get(ID).ServerKnows());
     entry.Put(syncable::IS_DIR, true);
     entry.Put(syncable::SPECIFICS, DefaultBookmarkSpecifics());
     entry.Put(syncable::IS_UNSYNCED, true);
     entry.Put(syncable::MTIME, test_time);
     entry_metahandle = entry.Get(META_HANDLE);
   }
-  SyncShareAsDelegate();
+  SyncShareNudge();
   syncable::Id id;
   int64 version;
   int64 server_position_in_parent;
   {
     ReadTransaction trans(FROM_HERE, directory());
     Entry entry(&trans, syncable::GET_BY_HANDLE, entry_metahandle);
     ASSERT_TRUE(entry.good());
     id = entry.Get(ID);
     EXPECT_TRUE(id.ServerKnows());
     version = entry.Get(BASE_VERSION);
     server_position_in_parent = entry.Get(SERVER_POSITION_IN_PARENT);
   }
   sync_pb::SyncEntity* update = mock_server_->AddUpdateFromLastCommit();
   EXPECT_EQ("Pete", update->name());
   EXPECT_EQ(id.GetServerId(), update->id_string());
   EXPECT_EQ(root_id_.GetServerId(), update->parent_id_string());
   EXPECT_EQ(version, update->version());
   EXPECT_EQ(server_position_in_parent, update->position_in_parent());
-  SyncShareAsDelegate();
+  SyncShareNudge();
   {
     ReadTransaction trans(FROM_HERE, directory());
     Entry entry(&trans, syncable::GET_BY_ID, id);
     ASSERT_TRUE(entry.good());
     EXPECT_TRUE(entry.Get(MTIME) == test_time);
   }
 }
 
 TEST_F(SyncerTest, ParentAndChildBothMatch) {
   const syncable::FullModelTypeSet all_types =
@@ skipping 14 matching lines @@
     MutableEntry child(&wtrans, CREATE, parent.Get(ID), "test.htm");
     ASSERT_TRUE(child.good());
     child.Put(ID, child_id);
     child.Put(BASE_VERSION, 1);
     child.Put(SPECIFICS, DefaultBookmarkSpecifics());
     WriteTestDataToEntry(&wtrans, &child);
   }
   mock_server_->AddUpdateDirectory(parent_id, root_id_, "Folder", 10, 10);
   mock_server_->AddUpdateBookmark(child_id, parent_id, "test.htm", 10, 10);
   mock_server_->set_conflict_all_commits(true);
-  SyncShareAsDelegate();
-  SyncShareAsDelegate();
-  SyncShareAsDelegate();
+  SyncShareNudge();
+  SyncShareNudge();
+  SyncShareNudge();
   {
     ReadTransaction trans(FROM_HERE, directory());
     Directory::ChildHandles children;
     directory()->GetChildHandlesById(&trans, root_id_, &children);
     EXPECT_EQ(1u, children.size());
     directory()->GetChildHandlesById(&trans, parent_id, &children);
     EXPECT_EQ(1u, children.size());
     std::vector<int64> unapplied;
     directory()->GetUnappliedUpdateMetaHandles(&trans, all_types, &unapplied);
     EXPECT_EQ(0u, unapplied.size());
     syncable::Directory::UnsyncedMetaHandles unsynced;
     directory()->GetUnsyncedMetaHandles(&trans, &unsynced);
     EXPECT_EQ(0u, unsynced.size());
     saw_syncer_event_ = false;
   }
 }
 
 TEST_F(SyncerTest, CommittingNewDeleted) {
   {
     WriteTransaction trans(FROM_HERE, UNITTEST, directory());
     MutableEntry entry(&trans, CREATE, trans.root_id(), "bob");
     entry.Put(IS_UNSYNCED, true);
     entry.Put(IS_DEL, true);
   }
-  SyncShareAsDelegate();
+  SyncShareNudge();
   EXPECT_EQ(0u, mock_server_->committed_ids().size());
 }
 
 // Original problem synopsis:
 // Check failed: entry->Get(BASE_VERSION) <= entry->Get(SERVER_VERSION)
 // Client creates entry, client finishes committing entry. Between
 // commit and getting update back, we delete the entry.
 // We get the update for the entry, but the local one was modified
 // so we store the entry but don't apply it. IS_UNAPPLIED_UPDATE is set.
 // We commit deletion and get a new version number.
@@ skipping 62 matching lines @@
   }
   syncer_->SyncShare(session_.get(), SYNCER_BEGIN, SYNCER_END);
   const StatusController& status(session_->status_controller());
   EXPECT_EQ(0, status.TotalNumServerConflictingItems());
 }
 
 TEST_F(SyncerTest, DeletingEntryWithLocalEdits) {
   int64 newfolder_metahandle;
 
   mock_server_->AddUpdateDirectory(1, 0, "bob", 1, 10);
-  SyncShareAsDelegate();
+  SyncShareNudge();
   {
     WriteTransaction trans(FROM_HERE, UNITTEST, directory());
     MutableEntry newfolder(&trans, CREATE, ids_.FromNumber(1), "local");
     ASSERT_TRUE(newfolder.good());
     newfolder.Put(IS_UNSYNCED, true);
     newfolder.Put(IS_DIR, true);
     newfolder.Put(SPECIFICS, DefaultBookmarkSpecifics());
     newfolder_metahandle = newfolder.Get(META_HANDLE);
   }
   mock_server_->AddUpdateDirectory(1, 0, "bob", 2, 20);
   mock_server_->SetLastUpdateDeleted();
   syncer_->SyncShare(session_.get(), SYNCER_BEGIN, APPLY_UPDATES);
   {
     ReadTransaction trans(FROM_HERE, directory());
     Entry entry(&trans, syncable::GET_BY_HANDLE, newfolder_metahandle);
     ASSERT_TRUE(entry.good());
   }
 }
 
 TEST_F(SyncerTest, FolderSwapUpdate) {
   mock_server_->AddUpdateDirectory(7801, 0, "bob", 1, 10);
   mock_server_->AddUpdateDirectory(1024, 0, "fred", 1, 10);
-  SyncShareAsDelegate();
+  SyncShareNudge();
   mock_server_->AddUpdateDirectory(1024, 0, "bob", 2, 20);
   mock_server_->AddUpdateDirectory(7801, 0, "fred", 2, 20);
-  SyncShareAsDelegate();
+  SyncShareNudge();
   {
     ReadTransaction trans(FROM_HERE, directory());
     Entry id1(&trans, GET_BY_ID, ids_.FromNumber(7801));
     ASSERT_TRUE(id1.good());
     EXPECT_TRUE("fred" == id1.Get(NON_UNIQUE_NAME));
     EXPECT_TRUE(root_id_ == id1.Get(PARENT_ID));
     Entry id2(&trans, GET_BY_ID, ids_.FromNumber(1024));
     ASSERT_TRUE(id2.good());
     EXPECT_TRUE("bob" == id2.Get(NON_UNIQUE_NAME));
     EXPECT_TRUE(root_id_ == id2.Get(PARENT_ID));
   }
   saw_syncer_event_ = false;
 }
 
 TEST_F(SyncerTest, NameCollidingFolderSwapWorksFine) {
   mock_server_->AddUpdateDirectory(7801, 0, "bob", 1, 10);
   mock_server_->AddUpdateDirectory(1024, 0, "fred", 1, 10);
   mock_server_->AddUpdateDirectory(4096, 0, "alice", 1, 10);
-  SyncShareAsDelegate();
+  SyncShareNudge();
   {
     ReadTransaction trans(FROM_HERE, directory());
     Entry id1(&trans, GET_BY_ID, ids_.FromNumber(7801));
     ASSERT_TRUE(id1.good());
     EXPECT_TRUE("bob" == id1.Get(NON_UNIQUE_NAME));
     EXPECT_TRUE(root_id_ == id1.Get(PARENT_ID));
     Entry id2(&trans, GET_BY_ID, ids_.FromNumber(1024));
     ASSERT_TRUE(id2.good());
     EXPECT_TRUE("fred" == id2.Get(NON_UNIQUE_NAME));
     EXPECT_TRUE(root_id_ == id2.Get(PARENT_ID));
     Entry id3(&trans, GET_BY_ID, ids_.FromNumber(4096));
     ASSERT_TRUE(id3.good());
     EXPECT_TRUE("alice" == id3.Get(NON_UNIQUE_NAME));
     EXPECT_TRUE(root_id_ == id3.Get(PARENT_ID));
   }
   mock_server_->AddUpdateDirectory(1024, 0, "bob", 2, 20);
   mock_server_->AddUpdateDirectory(7801, 0, "fred", 2, 20);
   mock_server_->AddUpdateDirectory(4096, 0, "bob", 2, 20);
-  SyncShareAsDelegate();
+  SyncShareNudge();
   {
     ReadTransaction trans(FROM_HERE, directory());
     Entry id1(&trans, GET_BY_ID, ids_.FromNumber(7801));
     ASSERT_TRUE(id1.good());
     EXPECT_TRUE("fred" == id1.Get(NON_UNIQUE_NAME));
     EXPECT_TRUE(root_id_ == id1.Get(PARENT_ID));
     Entry id2(&trans, GET_BY_ID, ids_.FromNumber(1024));
     ASSERT_TRUE(id2.good());
     EXPECT_TRUE("bob" == id2.Get(NON_UNIQUE_NAME));
     EXPECT_TRUE(root_id_ == id2.Get(PARENT_ID));
@@ skipping 13 matching lines @@
     for (uint32 i = 0; i < items_to_commit; i++) {
       string nameutf8 = base::StringPrintf("%d", i);
       string name(nameutf8.begin(), nameutf8.end());
       MutableEntry e(&trans, CREATE, trans.root_id(), name);
       e.Put(IS_UNSYNCED, true);
       e.Put(IS_DIR, true);
       e.Put(SPECIFICS, DefaultBookmarkSpecifics());
     }
   }
   uint32 num_loops = 0;
-  while (SyncShareAsDelegate()) {
+  while (SyncShareNudge()) {
     num_loops++;
     ASSERT_LT(num_loops, max_batches * 2);
   }
   EXPECT_GE(mock_server_->commit_messages().size(), max_batches);
 }
 
 TEST_F(SyncerTest, HugeConflict) {
   int item_count = 300;  // We should be able to do 300 or 3000 w/o issue.
 
   syncable::Id parent_id = ids_.NewServerId();
   syncable::Id last_id = parent_id;
   vector<syncable::Id> tree_ids;
 
   // Create a lot of updates for which the parent does not exist yet.
   // Generate a huge deep tree which should all fail to apply at first.
   {
     WriteTransaction trans(FROM_HERE, UNITTEST, directory());
     for (int i = 0; i < item_count ; i++) {
       syncable::Id next_id = ids_.NewServerId();
       tree_ids.push_back(next_id);
       mock_server_->AddUpdateDirectory(next_id, last_id, "BOB", 2, 20);
       last_id = next_id;
     }
   }
-  SyncShareAsDelegate();
+  SyncShareNudge();
 
   // Check they're in the expected conflict state.
   {
     ReadTransaction trans(FROM_HERE, directory());
     for (int i = 0; i < item_count; i++) {
       Entry e(&trans, GET_BY_ID, tree_ids[i]);
       // They should all exist but none should be applied.
       ASSERT_TRUE(e.good());
       EXPECT_TRUE(e.Get(IS_DEL));
       EXPECT_TRUE(e.Get(IS_UNAPPLIED_UPDATE));
     }
   }
 
   // Add the missing parent directory.
   mock_server_->AddUpdateDirectory(parent_id, TestIdFactory::root(),
       "BOB", 2, 20);
-  SyncShareAsDelegate();
+  SyncShareNudge();
 
   // Now they should all be OK.
   {
     ReadTransaction trans(FROM_HERE, directory());
     for (int i = 0; i < item_count; i++) {
       Entry e(&trans, GET_BY_ID, tree_ids[i]);
       ASSERT_TRUE(e.good());
       EXPECT_FALSE(e.Get(IS_DEL));
       EXPECT_FALSE(e.Get(IS_UNAPPLIED_UPDATE));
     }
   }
 }
 
 TEST_F(SyncerTest, DontCrashOnCaseChange) {
   mock_server_->AddUpdateDirectory(1, 0, "bob", 1, 10);
-  SyncShareAsDelegate();
+  SyncShareNudge();
   {
     WriteTransaction trans(FROM_HERE, UNITTEST, directory());
     MutableEntry e(&trans, GET_BY_ID, ids_.FromNumber(1));
     ASSERT_TRUE(e.good());
     e.Put(IS_UNSYNCED, true);
   }
   mock_server_->set_conflict_all_commits(true);
   mock_server_->AddUpdateDirectory(1, 0, "BOB", 2, 20);
-  SyncShareAsDelegate();  // USED TO CAUSE AN ASSERT
+  SyncShareNudge();  // USED TO CAUSE AN ASSERT
   saw_syncer_event_ = false;
 }
 
 TEST_F(SyncerTest, UnsyncedItemAndUpdate) {
   mock_server_->AddUpdateDirectory(1, 0, "bob", 1, 10);
-  SyncShareAsDelegate();
+  SyncShareNudge();
   mock_server_->set_conflict_all_commits(true);
   mock_server_->AddUpdateDirectory(2, 0, "bob", 2, 20);
-  SyncShareAsDelegate();  // USED TO CAUSE AN ASSERT
+  SyncShareNudge();  // USED TO CAUSE AN ASSERT
   saw_syncer_event_ = false;
 }
 
 TEST_F(SyncerTest, NewEntryAndAlteredServerEntrySharePath) {
   mock_server_->AddUpdateBookmark(1, 0, "Foo.htm", 10, 10);
-  SyncShareAsDelegate();
+  SyncShareNudge();
   int64 local_folder_handle;
   syncable::Id local_folder_id;
   {
     WriteTransaction wtrans(FROM_HERE, UNITTEST, directory());
     MutableEntry new_entry(&wtrans, CREATE, wtrans.root_id(), "Bar.htm");
     ASSERT_TRUE(new_entry.good());
     local_folder_id = new_entry.Get(ID);
     local_folder_handle = new_entry.Get(META_HANDLE);
     new_entry.Put(IS_UNSYNCED, true);
     new_entry.Put(SPECIFICS, DefaultBookmarkSpecifics());
     MutableEntry old(&wtrans, GET_BY_ID, ids_.FromNumber(1));
     ASSERT_TRUE(old.good());
     WriteTestDataToEntry(&wtrans, &old);
   }
   mock_server_->AddUpdateBookmark(1, 0, "Bar.htm", 20, 20);
   mock_server_->set_conflict_all_commits(true);
-  SyncShareAsDelegate();
+  SyncShareNudge();
   saw_syncer_event_ = false;
   {
     // Update #20 should have been dropped in favor of the local version.
     WriteTransaction wtrans(FROM_HERE, UNITTEST, directory());
     MutableEntry server(&wtrans, GET_BY_ID, ids_.FromNumber(1));
     MutableEntry local(&wtrans, GET_BY_HANDLE, local_folder_handle);
     ASSERT_TRUE(server.good());
     ASSERT_TRUE(local.good());
     EXPECT_TRUE(local.Get(META_HANDLE) != server.Get(META_HANDLE));
     EXPECT_FALSE(server.Get(IS_UNAPPLIED_UPDATE));
     EXPECT_FALSE(local.Get(IS_UNAPPLIED_UPDATE));
     EXPECT_TRUE(server.Get(IS_UNSYNCED));
     EXPECT_TRUE(local.Get(IS_UNSYNCED));
     EXPECT_EQ("Foo.htm", server.Get(NON_UNIQUE_NAME));
     EXPECT_EQ("Bar.htm", local.Get(NON_UNIQUE_NAME));
   }
   // Allow local changes to commit.
   mock_server_->set_conflict_all_commits(false);
-  SyncShareAsDelegate();
+  SyncShareNudge();
   saw_syncer_event_ = false;
 
   // Now add a server change to make the two names equal.  There should
   // be no conflict with that, since names are not unique.
   mock_server_->AddUpdateBookmark(1, 0, "Bar.htm", 30, 30);
-  SyncShareAsDelegate();
+  SyncShareNudge();
   saw_syncer_event_ = false;
   {
     WriteTransaction wtrans(FROM_HERE, UNITTEST, directory());
     MutableEntry server(&wtrans, GET_BY_ID, ids_.FromNumber(1));
     MutableEntry local(&wtrans, GET_BY_HANDLE, local_folder_handle);
     ASSERT_TRUE(server.good());
     ASSERT_TRUE(local.good());
     EXPECT_TRUE(local.Get(META_HANDLE) != server.Get(META_HANDLE));
     EXPECT_FALSE(server.Get(IS_UNAPPLIED_UPDATE));
     EXPECT_FALSE(local.Get(IS_UNAPPLIED_UPDATE));
     EXPECT_FALSE(server.Get(IS_UNSYNCED));
     EXPECT_FALSE(local.Get(IS_UNSYNCED));
     EXPECT_EQ("Bar.htm", server.Get(NON_UNIQUE_NAME));
     EXPECT_EQ("Bar.htm", local.Get(NON_UNIQUE_NAME));
     EXPECT_EQ("http://google.com",  // Default from AddUpdateBookmark.
         server.Get(SPECIFICS).bookmark().url());
   }
 }
 
 // Same as NewEntryAnddServerEntrySharePath, but using the old-style protocol.
 TEST_F(SyncerTest, NewEntryAndAlteredServerEntrySharePath_OldBookmarksProto) {
   mock_server_->set_use_legacy_bookmarks_protocol(true);
   mock_server_->AddUpdateBookmark(1, 0, "Foo.htm", 10, 10);
-  SyncShareAsDelegate();
+  SyncShareNudge();
   int64 local_folder_handle;
   syncable::Id local_folder_id;
   {
     WriteTransaction wtrans(FROM_HERE, UNITTEST, directory());
     MutableEntry new_entry(&wtrans, CREATE, wtrans.root_id(), "Bar.htm");
     ASSERT_TRUE(new_entry.good());
     local_folder_id = new_entry.Get(ID);
     local_folder_handle = new_entry.Get(META_HANDLE);
     new_entry.Put(IS_UNSYNCED, true);
     new_entry.Put(SPECIFICS, DefaultBookmarkSpecifics());
     MutableEntry old(&wtrans, GET_BY_ID, ids_.FromNumber(1));
     ASSERT_TRUE(old.good());
     WriteTestDataToEntry(&wtrans, &old);
   }
   mock_server_->AddUpdateBookmark(1, 0, "Bar.htm", 20, 20);
   mock_server_->set_conflict_all_commits(true);
-  SyncShareAsDelegate();
+  SyncShareNudge();
   saw_syncer_event_ = false;
   {
     // Update #20 should have been dropped in favor of the local version.
     WriteTransaction wtrans(FROM_HERE, UNITTEST, directory());
     MutableEntry server(&wtrans, GET_BY_ID, ids_.FromNumber(1));
     MutableEntry local(&wtrans, GET_BY_HANDLE, local_folder_handle);
     ASSERT_TRUE(server.good());
     ASSERT_TRUE(local.good());
     EXPECT_TRUE(local.Get(META_HANDLE) != server.Get(META_HANDLE));
     EXPECT_FALSE(server.Get(IS_UNAPPLIED_UPDATE));
     EXPECT_FALSE(local.Get(IS_UNAPPLIED_UPDATE));
     EXPECT_TRUE(server.Get(IS_UNSYNCED));
     EXPECT_TRUE(local.Get(IS_UNSYNCED));
     EXPECT_EQ("Foo.htm", server.Get(NON_UNIQUE_NAME));
     EXPECT_EQ("Bar.htm", local.Get(NON_UNIQUE_NAME));
   }
   // Allow local changes to commit.
   mock_server_->set_conflict_all_commits(false);
-  SyncShareAsDelegate();
+  SyncShareNudge();
   saw_syncer_event_ = false;
 
   // Now add a server change to make the two names equal.  There should
   // be no conflict with that, since names are not unique.
   mock_server_->AddUpdateBookmark(1, 0, "Bar.htm", 30, 30);
-  SyncShareAsDelegate();
+  SyncShareNudge();
   saw_syncer_event_ = false;
   {
     WriteTransaction wtrans(FROM_HERE, UNITTEST, directory());
     MutableEntry server(&wtrans, GET_BY_ID, ids_.FromNumber(1));
     MutableEntry local(&wtrans, GET_BY_HANDLE, local_folder_handle);
     ASSERT_TRUE(server.good());
     ASSERT_TRUE(local.good());
     EXPECT_TRUE(local.Get(META_HANDLE) != server.Get(META_HANDLE));
     EXPECT_FALSE(server.Get(IS_UNAPPLIED_UPDATE));
     EXPECT_FALSE(local.Get(IS_UNAPPLIED_UPDATE));
     EXPECT_FALSE(server.Get(IS_UNSYNCED));
     EXPECT_FALSE(local.Get(IS_UNSYNCED));
     EXPECT_EQ("Bar.htm", server.Get(NON_UNIQUE_NAME));
     EXPECT_EQ("Bar.htm", local.Get(NON_UNIQUE_NAME));
     EXPECT_EQ("http://google.com",  // Default from AddUpdateBookmark.
         server.Get(SPECIFICS).bookmark().url());
   }
 }
 
 // Circular links should be resolved by the server.
 TEST_F(SyncerTest, SiblingDirectoriesBecomeCircular) {
   // we don't currently resolve this. This test ensures we don't.
   mock_server_->AddUpdateDirectory(1, 0, "A", 10, 10);
   mock_server_->AddUpdateDirectory(2, 0, "B", 10, 10);
-  SyncShareAsDelegate();
+  SyncShareNudge();
   {
     WriteTransaction wtrans(FROM_HERE, UNITTEST, directory());
     MutableEntry A(&wtrans, GET_BY_ID, ids_.FromNumber(1));
     ASSERT_TRUE(A.good());
     A.Put(IS_UNSYNCED, true);
     ASSERT_TRUE(A.Put(PARENT_ID, ids_.FromNumber(2)));
     ASSERT_TRUE(A.Put(NON_UNIQUE_NAME, "B"));
   }
   mock_server_->AddUpdateDirectory(2, 1, "A", 20, 20);
   mock_server_->set_conflict_all_commits(true);
-  SyncShareAsDelegate();
+  SyncShareNudge();
   saw_syncer_event_ = false;
   {
     WriteTransaction wtrans(FROM_HERE, UNITTEST, directory());
     MutableEntry A(&wtrans, GET_BY_ID, ids_.FromNumber(1));
     ASSERT_TRUE(A.good());
     MutableEntry B(&wtrans, GET_BY_ID, ids_.FromNumber(2));
     ASSERT_TRUE(B.good());
     EXPECT_TRUE(A.Get(NON_UNIQUE_NAME) == "B");
     EXPECT_TRUE(B.Get(NON_UNIQUE_NAME) == "B");
   }
 }
 
 TEST_F(SyncerTest, SwapEntryNames) {
   // Simple transaction test.
   mock_server_->AddUpdateDirectory(1, 0, "A", 10, 10);
   mock_server_->AddUpdateDirectory(2, 0, "B", 10, 10);
   mock_server_->set_conflict_all_commits(true);
-  SyncShareAsDelegate();
+  SyncShareNudge();
   {
     WriteTransaction wtrans(FROM_HERE, UNITTEST, directory());
     MutableEntry A(&wtrans, GET_BY_ID, ids_.FromNumber(1));
     ASSERT_TRUE(A.good());
     A.Put(IS_UNSYNCED, true);
     MutableEntry B(&wtrans, GET_BY_ID, ids_.FromNumber(2));
     ASSERT_TRUE(B.good());
     B.Put(IS_UNSYNCED, true);
     ASSERT_TRUE(A.Put(NON_UNIQUE_NAME, "C"));
     ASSERT_TRUE(B.Put(NON_UNIQUE_NAME, "A"));
     ASSERT_TRUE(A.Put(NON_UNIQUE_NAME, "B"));
   }
-  SyncShareAsDelegate();
+  SyncShareNudge();
   saw_syncer_event_ = false;
 }
 
 TEST_F(SyncerTest, DualDeletionWithNewItemNameClash) {
   mock_server_->AddUpdateDirectory(1, 0, "A", 10, 10);
   mock_server_->AddUpdateBookmark(2, 0, "B", 10, 10);
   mock_server_->set_conflict_all_commits(true);
-  SyncShareAsDelegate();
+  SyncShareNudge();
   {
     WriteTransaction trans(FROM_HERE, UNITTEST, directory());
     MutableEntry B(&trans, GET_BY_ID, ids_.FromNumber(2));
     ASSERT_TRUE(B.good());
     WriteTestDataToEntry(&trans, &B);
     B.Put(IS_DEL, true);
   }
   mock_server_->AddUpdateBookmark(2, 0, "A", 11, 11);
   mock_server_->SetLastUpdateDeleted();
-  SyncShareAsDelegate();
+  SyncShareNudge();
   {
     ReadTransaction trans(FROM_HERE, directory());
     Entry B(&trans, GET_BY_ID, ids_.FromNumber(2));
     ASSERT_TRUE(B.good());
     EXPECT_FALSE(B.Get(IS_UNSYNCED));
     EXPECT_FALSE(B.Get(IS_UNAPPLIED_UPDATE));
   }
   saw_syncer_event_ = false;
 }
 
 TEST_F(SyncerTest, ResolveWeWroteTheyDeleted) {
   int64 bob_metahandle;
 
   mock_server_->AddUpdateBookmark(1, 0, "bob", 1, 10);
-  SyncShareAsDelegate();
+  SyncShareNudge();
   {
     WriteTransaction trans(FROM_HERE, UNITTEST, directory());
     MutableEntry bob(&trans, GET_BY_ID, ids_.FromNumber(1));
     ASSERT_TRUE(bob.good());
     bob_metahandle = bob.Get(META_HANDLE);
     WriteTestDataToEntry(&trans, &bob);
   }
   mock_server_->AddUpdateBookmark(1, 0, "bob", 2, 10);
   mock_server_->SetLastUpdateDeleted();
   mock_server_->set_conflict_all_commits(true);
-  SyncShareAsDelegate();
-  SyncShareAsDelegate();
+  SyncShareNudge();
+  SyncShareNudge();
   {
     ReadTransaction trans(FROM_HERE, directory());
     Entry bob(&trans, GET_BY_HANDLE, bob_metahandle);
     ASSERT_TRUE(bob.good());
     EXPECT_TRUE(bob.Get(IS_UNSYNCED));
     EXPECT_FALSE(bob.Get(ID).ServerKnows());
     EXPECT_FALSE(bob.Get(IS_UNAPPLIED_UPDATE));
     EXPECT_FALSE(bob.Get(IS_DEL));
   }
   saw_syncer_event_ = false;
@@ skipping 13 matching lines @@
     ASSERT_TRUE(folder2.good());
     folder2.Put(IS_UNSYNCED, false);
     folder2.Put(IS_DIR, true);
     folder2.Put(SPECIFICS, DefaultBookmarkSpecifics());
     folder2.Put(BASE_VERSION, 3);
     folder2.Put(ID, syncable::Id::CreateFromServerId("mock_server:10000"));
   }
   mock_server_->set_next_new_id(10000);
   EXPECT_EQ(1u, directory()->unsynced_entity_count());
   // we get back a bad id in here (should never happen).
-  SyncShareAsDelegate();
+  SyncShareNudge();
   EXPECT_EQ(1u, directory()->unsynced_entity_count());
-  SyncShareAsDelegate();  // another bad id in here.
+  SyncShareNudge();  // another bad id in here.
   EXPECT_EQ(0u, directory()->unsynced_entity_count());
   saw_syncer_event_ = false;
 }
 
 TEST_F(SyncerTest, DeletedEntryWithBadParentInLoopCalculation) {
   mock_server_->AddUpdateDirectory(1, 0, "bob", 1, 10);
-  SyncShareAsDelegate();
+  SyncShareNudge();
   {
     WriteTransaction trans(FROM_HERE, UNITTEST, directory());
     MutableEntry bob(&trans, GET_BY_ID, ids_.FromNumber(1));
     ASSERT_TRUE(bob.good());
     // This is valid, because the parent could have gone away a long time ago.
     bob.Put(PARENT_ID, ids_.FromNumber(54));
     bob.Put(IS_DEL, true);
     bob.Put(IS_UNSYNCED, true);
   }
   mock_server_->AddUpdateDirectory(2, 1, "fred", 1, 10);
-  SyncShareAsDelegate();
-  SyncShareAsDelegate();
+  SyncShareNudge();
+  SyncShareNudge();
 }
 
 TEST_F(SyncerTest, ConflictResolverMergesLocalDeleteAndServerUpdate) {
   {
     WriteTransaction trans(FROM_HERE, UNITTEST, directory());
 
     MutableEntry local_deleted(&trans, CREATE, trans.root_id(), "name");
     local_deleted.Put(ID, ids_.FromNumber(1));
     local_deleted.Put(BASE_VERSION, 1);
     local_deleted.Put(IS_DEL, true);
     local_deleted.Put(IS_DIR, false);
     local_deleted.Put(IS_UNSYNCED, true);
     local_deleted.Put(SPECIFICS, DefaultBookmarkSpecifics());
   }
 
   mock_server_->AddUpdateBookmark(ids_.FromNumber(1), root_id_, "name", 10, 10);
 
   // We don't care about actually committing, just the resolution.
   mock_server_->set_conflict_all_commits(true);
-  SyncShareAsDelegate();
+  SyncShareNudge();
 
   {
     ReadTransaction trans(FROM_HERE, directory());
     Entry local_deleted(&trans, GET_BY_ID, ids_.FromNumber(1));
     EXPECT_TRUE(local_deleted.Get(BASE_VERSION) == 10);
     EXPECT_TRUE(local_deleted.Get(IS_UNAPPLIED_UPDATE) == false);
     EXPECT_TRUE(local_deleted.Get(IS_UNSYNCED) == true);
     EXPECT_TRUE(local_deleted.Get(IS_DEL) == true);
     EXPECT_TRUE(local_deleted.Get(IS_DIR) == false);
   }
@@ skipping 15 matching lines @@
     local_deleted.Put(SPECIFICS, DefaultBookmarkSpecifics());
   }
 
   // Server update: entry-type object (not a container), revision 10.
   mock_server_->AddUpdateBookmark(ids_.FromNumber(1), root_id_, "name", 10, 10);
 
   // Don't attempt to commit.
   mock_server_->set_conflict_all_commits(true);
 
   // The syncer should not attempt to apply the invalid update.
-  SyncShareAsDelegate();
+  SyncShareNudge();
 
   {
     ReadTransaction trans(FROM_HERE, directory());
     Entry local_deleted(&trans, GET_BY_ID, ids_.FromNumber(1));
     EXPECT_TRUE(local_deleted.Get(BASE_VERSION) == 1);
     EXPECT_TRUE(local_deleted.Get(IS_UNAPPLIED_UPDATE) == false);
     EXPECT_TRUE(local_deleted.Get(IS_UNSYNCED) == true);
     EXPECT_TRUE(local_deleted.Get(IS_DEL) == true);
     EXPECT_TRUE(local_deleted.Get(IS_DIR) == true);
   }
 }
 
 // Bug Synopsis:
 // Merge conflict resolution will merge a new local entry with another entry
 // that needs updates, resulting in CHECK.
 TEST_F(SyncerTest, MergingExistingItems) {
   mock_server_->set_conflict_all_commits(true);
   mock_server_->AddUpdateBookmark(1, 0, "base", 10, 10);
-  SyncShareAsDelegate();
+  SyncShareNudge();
   {
     WriteTransaction trans(FROM_HERE, UNITTEST, directory());
     MutableEntry entry(&trans, CREATE, trans.root_id(), "Copy of base");
     WriteTestDataToEntry(&trans, &entry);
   }
   mock_server_->AddUpdateBookmark(1, 0, "Copy of base", 50, 50);
   SyncRepeatedlyToTriggerConflictResolution(session_.get());
 }
 
 // In this test a long changelog contains a child at the start of the changelog
@@ skipping 47 matching lines @@
     EXPECT_EQ(entry.Get(ID), child.Get(PARENT_ID));
     EXPECT_EQ("stuck", child.Get(NON_UNIQUE_NAME));
     EXPECT_TRUE(child.good());
   }
 }
 
 TEST_F(SyncerTest, DontMergeTwoExistingItems) {
   mock_server_->set_conflict_all_commits(true);
   mock_server_->AddUpdateBookmark(1, 0, "base", 10, 10);
   mock_server_->AddUpdateBookmark(2, 0, "base2", 10, 10);
-  SyncShareAsDelegate();
+  SyncShareNudge();
   {
     WriteTransaction trans(FROM_HERE, UNITTEST, directory());
     MutableEntry entry(&trans, GET_BY_ID, ids_.FromNumber(2));
     ASSERT_TRUE(entry.good());
     EXPECT_TRUE(entry.Put(NON_UNIQUE_NAME, "Copy of base"));
     entry.Put(IS_UNSYNCED, true);
   }
   mock_server_->AddUpdateBookmark(1, 0, "Copy of base", 50, 50);
   SyncRepeatedlyToTriggerConflictResolution(session_.get());
   {
     ReadTransaction trans(FROM_HERE, directory());
     Entry entry1(&trans, GET_BY_ID, ids_.FromNumber(1));
     EXPECT_FALSE(entry1.Get(IS_UNAPPLIED_UPDATE));
     EXPECT_FALSE(entry1.Get(IS_UNSYNCED));
     EXPECT_FALSE(entry1.Get(IS_DEL));
     Entry entry2(&trans, GET_BY_ID, ids_.FromNumber(2));
     EXPECT_FALSE(entry2.Get(IS_UNAPPLIED_UPDATE));
     EXPECT_TRUE(entry2.Get(IS_UNSYNCED));
     EXPECT_FALSE(entry2.Get(IS_DEL));
     EXPECT_EQ(entry1.Get(NON_UNIQUE_NAME), entry2.Get(NON_UNIQUE_NAME));
   }
 }
 
 TEST_F(SyncerTest, TestUndeleteUpdate) {
   mock_server_->set_conflict_all_commits(true);
   mock_server_->AddUpdateDirectory(1, 0, "foo", 1, 1);
   mock_server_->AddUpdateDirectory(2, 1, "bar", 1, 2);
-  SyncShareAsDelegate();
+  SyncShareNudge();
   mock_server_->AddUpdateDirectory(2, 1, "bar", 2, 3);
   mock_server_->SetLastUpdateDeleted();
-  SyncShareAsDelegate();
+  SyncShareNudge();
 
   int64 metahandle;
   {
     ReadTransaction trans(FROM_HERE, directory());
     Entry entry(&trans, GET_BY_ID, ids_.FromNumber(2));
     ASSERT_TRUE(entry.good());
     EXPECT_TRUE(entry.Get(IS_DEL));
     metahandle = entry.Get(META_HANDLE);
   }
   mock_server_->AddUpdateDirectory(1, 0, "foo", 2, 4);
   mock_server_->SetLastUpdateDeleted();
-  SyncShareAsDelegate();
+  SyncShareNudge();
   // This used to be rejected as it's an undeletion. Now, it results in moving
   // the delete path aside.
   mock_server_->AddUpdateDirectory(2, 1, "bar", 3, 5);
-  SyncShareAsDelegate();
+  SyncShareNudge();
   {
     ReadTransaction trans(FROM_HERE, directory());
     Entry entry(&trans, GET_BY_ID, ids_.FromNumber(2));
     ASSERT_TRUE(entry.good());
     EXPECT_TRUE(entry.Get(IS_DEL));
     EXPECT_FALSE(entry.Get(SERVER_IS_DEL));
     EXPECT_TRUE(entry.Get(IS_UNAPPLIED_UPDATE));
     EXPECT_NE(entry.Get(META_HANDLE), metahandle);
   }
 }
 
 TEST_F(SyncerTest, TestMoveSanitizedNamedFolder) {
   mock_server_->AddUpdateDirectory(1, 0, "foo", 1, 1);
   mock_server_->AddUpdateDirectory(2, 0, ":::", 1, 2);
-  SyncShareAsDelegate();
+  SyncShareNudge();
   {
     WriteTransaction trans(FROM_HERE, UNITTEST, directory());
     MutableEntry entry(&trans, GET_BY_ID, ids_.FromNumber(2));
     ASSERT_TRUE(entry.good());
     EXPECT_TRUE(entry.Put(PARENT_ID, ids_.FromNumber(1)));
     EXPECT_TRUE(entry.Put(IS_UNSYNCED, true));
   }
-  SyncShareAsDelegate();
+  SyncShareNudge();
   // We use the same sync ts as before so our times match up.
   mock_server_->AddUpdateDirectory(2, 1, ":::", 2, 2);
-  SyncShareAsDelegate();
+  SyncShareNudge();
 }
 
 // Don't crash when this occurs.
 TEST_F(SyncerTest, UpdateWhereParentIsNotAFolder) {
   mock_server_->AddUpdateBookmark(1, 0, "B", 10, 10);
   mock_server_->AddUpdateDirectory(2, 1, "BookmarkParent", 10, 10);
   // Used to cause a CHECK
-  SyncShareAsDelegate();
+  SyncShareNudge();
   {
     ReadTransaction rtrans(FROM_HERE, directory());
     Entry good_entry(&rtrans, syncable::GET_BY_ID, ids_.FromNumber(1));
     ASSERT_TRUE(good_entry.good());
     EXPECT_FALSE(good_entry.Get(IS_UNAPPLIED_UPDATE));
     Entry bad_parent(&rtrans, syncable::GET_BY_ID, ids_.FromNumber(2));
     ASSERT_TRUE(bad_parent.good());
     EXPECT_TRUE(bad_parent.Get(IS_UNAPPLIED_UPDATE));
   }
 }
 
 const char kRootId[] = "0";
 
 TEST_F(SyncerTest, DirectoryUpdateTest) {
   Id in_root_id = ids_.NewServerId();
   Id in_in_root_id = ids_.NewServerId();
 
   mock_server_->AddUpdateDirectory(in_root_id, TestIdFactory::root(),
                                    "in_root_name", 2, 2);
   mock_server_->AddUpdateDirectory(in_in_root_id, in_root_id,
                                    "in_in_root_name", 3, 3);
-  SyncShareAsDelegate();
+  SyncShareNudge();
   {
     ReadTransaction trans(FROM_HERE, directory());
     Entry in_root(&trans, GET_BY_ID, in_root_id);
     ASSERT_TRUE(in_root.good());
     EXPECT_EQ("in_root_name", in_root.Get(NON_UNIQUE_NAME));
     EXPECT_EQ(TestIdFactory::root(), in_root.Get(PARENT_ID));
 
     Entry in_in_root(&trans, GET_BY_ID, in_in_root_id);
     ASSERT_TRUE(in_in_root.good());
     EXPECT_EQ("in_in_root_name", in_in_root.Get(NON_UNIQUE_NAME));
@@ skipping 17 matching lines @@
     foo_metahandle = parent.Get(META_HANDLE);
 
     MutableEntry child(&wtrans, syncable::CREATE, parent.Get(ID), "bar");
     ASSERT_TRUE(child.good());
     child.Put(syncable::IS_UNSYNCED, true);
     child.Put(syncable::IS_DIR, true);
     child.Put(syncable::SPECIFICS, DefaultBookmarkSpecifics());
     bar_metahandle = child.Get(META_HANDLE);
     in_dir_id = parent.Get(syncable::ID);
   }
-  SyncShareAsDelegate();
+  SyncShareNudge();
   {
     ReadTransaction trans(FROM_HERE, directory());
     Entry fail_by_old_id_entry(&trans, GET_BY_ID, in_root_id);
     ASSERT_FALSE(fail_by_old_id_entry.good());
 
     Entry foo_entry(&trans, GET_BY_HANDLE, foo_metahandle);
     ASSERT_TRUE(foo_entry.good());
     EXPECT_EQ("foo", foo_entry.Get(NON_UNIQUE_NAME));
     EXPECT_NE(foo_entry.Get(syncable::ID), in_root_id);
 
     Entry bar_entry(&trans, GET_BY_HANDLE, bar_metahandle);
     ASSERT_TRUE(bar_entry.good());
     EXPECT_EQ("bar", bar_entry.Get(NON_UNIQUE_NAME));
     EXPECT_NE(bar_entry.Get(syncable::ID), in_dir_id);
     EXPECT_EQ(foo_entry.Get(syncable::ID), bar_entry.Get(PARENT_ID));
   }
 }
 
 TEST_F(SyncerTest, TestClientCommand) {
   using sync_pb::ClientCommand;
 
   ClientCommand* command = mock_server_->GetNextClientCommand();
   command->set_set_sync_poll_interval(8);
   command->set_set_sync_long_poll_interval(800);
   command->set_sessions_commit_delay_seconds(3141);
   mock_server_->AddUpdateDirectory(1, 0, "in_root", 1, 1);
-  SyncShareAsDelegate();
+  SyncShareNudge();
 
   EXPECT_TRUE(TimeDelta::FromSeconds(8) ==
               last_short_poll_interval_received_);
   EXPECT_TRUE(TimeDelta::FromSeconds(800) ==
               last_long_poll_interval_received_);
   EXPECT_TRUE(TimeDelta::FromSeconds(3141) ==
               last_sessions_commit_delay_seconds_);
 
   command = mock_server_->GetNextClientCommand();
   command->set_set_sync_poll_interval(180);
   command->set_set_sync_long_poll_interval(190);
   command->set_sessions_commit_delay_seconds(2718);
   mock_server_->AddUpdateDirectory(1, 0, "in_root", 1, 1);
-  SyncShareAsDelegate();
+  SyncShareNudge();
 
   EXPECT_TRUE(TimeDelta::FromSeconds(180) ==
               last_short_poll_interval_received_);
   EXPECT_TRUE(TimeDelta::FromSeconds(190) ==
               last_long_poll_interval_received_);
   EXPECT_TRUE(TimeDelta::FromSeconds(2718) ==
               last_sessions_commit_delay_seconds_);
 }
 
 TEST_F(SyncerTest, EnsureWeSendUpOldParent) {
   syncable::Id folder_one_id = ids_.FromNumber(1);
   syncable::Id folder_two_id = ids_.FromNumber(2);
 
   mock_server_->AddUpdateDirectory(folder_one_id, TestIdFactory::root(),
       "folder_one", 1, 1);
   mock_server_->AddUpdateDirectory(folder_two_id, TestIdFactory::root(),
       "folder_two", 1, 1);
-  SyncShareAsDelegate();
+  SyncShareNudge();
   {
     // A moved entry should send an "old parent."
     WriteTransaction trans(FROM_HERE, UNITTEST, directory());
     MutableEntry entry(&trans, GET_BY_ID, folder_one_id);
     ASSERT_TRUE(entry.good());
     entry.Put(PARENT_ID, folder_two_id);
     entry.Put(IS_UNSYNCED, true);
     // A new entry should send no "old parent."
     MutableEntry create(&trans, CREATE, trans.root_id(), "new_folder");
     create.Put(IS_UNSYNCED, true);
     create.Put(SPECIFICS, DefaultBookmarkSpecifics());
   }
-  SyncShareAsDelegate();
+  SyncShareNudge();
   const sync_pb::CommitMessage& commit = mock_server_->last_sent_commit();
   ASSERT_EQ(2, commit.entries_size());
   EXPECT_TRUE(commit.entries(0).parent_id_string() == "2");
   EXPECT_TRUE(commit.entries(0).old_parent_id() == "0");
   EXPECT_FALSE(commit.entries(1).has_old_parent_id());
 }
 
 TEST_F(SyncerTest, Test64BitVersionSupport) {
   int64 really_big_int = std::numeric_limits<int64>::max() - 12;
   const string name("ringo's dang orang ran rings around my o-ring");
@@ skipping 14 matching lines @@
   Entry entry(&rtrans, syncable::GET_BY_HANDLE, item_metahandle);
   ASSERT_TRUE(entry.good());
   EXPECT_TRUE(really_big_int == entry.Get(syncable::BASE_VERSION));
 }
 
 TEST_F(SyncerTest, TestSimpleUndelete) {
   Id id = ids_.MakeServer("undeletion item"), root = TestIdFactory::root();
   mock_server_->set_conflict_all_commits(true);
   // Let there be an entry from the server.
   mock_server_->AddUpdateBookmark(id, root, "foo", 1, 10);
-  SyncShareAsDelegate();
+  SyncShareNudge();
   // Check it out and delete it.
   {
     WriteTransaction wtrans(FROM_HERE, UNITTEST, directory());
     MutableEntry entry(&wtrans, GET_BY_ID, id);
     ASSERT_TRUE(entry.good());
     EXPECT_FALSE(entry.Get(IS_UNAPPLIED_UPDATE));
     EXPECT_FALSE(entry.Get(IS_UNSYNCED));
     EXPECT_FALSE(entry.Get(IS_DEL));
     // Delete it locally.
     entry.Put(IS_DEL, true);
   }
-  SyncShareAsDelegate();
+  SyncShareNudge();
   // Confirm we see IS_DEL and not SERVER_IS_DEL.
   {
     ReadTransaction trans(FROM_HERE, directory());
     Entry entry(&trans, GET_BY_ID, id);
     ASSERT_TRUE(entry.good());
     EXPECT_FALSE(entry.Get(IS_UNAPPLIED_UPDATE));
     EXPECT_FALSE(entry.Get(IS_UNSYNCED));
     EXPECT_TRUE(entry.Get(IS_DEL));
     EXPECT_FALSE(entry.Get(SERVER_IS_DEL));
   }
-  SyncShareAsDelegate();
+  SyncShareNudge();
   // Update from server confirming deletion.
   mock_server_->AddUpdateBookmark(id, root, "foo", 2, 11);
   mock_server_->SetLastUpdateDeleted();
-  SyncShareAsDelegate();
+  SyncShareNudge();
   // IS_DEL AND SERVER_IS_DEL now both true.
   {
     ReadTransaction trans(FROM_HERE, directory());
     Entry entry(&trans, GET_BY_ID, id);
     ASSERT_TRUE(entry.good());
     EXPECT_FALSE(entry.Get(IS_UNAPPLIED_UPDATE));
     EXPECT_FALSE(entry.Get(IS_UNSYNCED));
     EXPECT_TRUE(entry.Get(IS_DEL));
     EXPECT_TRUE(entry.Get(SERVER_IS_DEL));
   }
   // Undelete from server.
   mock_server_->AddUpdateBookmark(id, root, "foo", 2, 12);
-  SyncShareAsDelegate();
+  SyncShareNudge();
   // IS_DEL and SERVER_IS_DEL now both false.
   {
     ReadTransaction trans(FROM_HERE, directory());
     Entry entry(&trans, GET_BY_ID, id);
     ASSERT_TRUE(entry.good());
     EXPECT_FALSE(entry.Get(IS_UNAPPLIED_UPDATE));
     EXPECT_FALSE(entry.Get(IS_UNSYNCED));
     EXPECT_FALSE(entry.Get(IS_DEL));
     EXPECT_FALSE(entry.Get(SERVER_IS_DEL));
   }
 }
 
 TEST_F(SyncerTest, TestUndeleteWithMissingDeleteUpdate) {
   Id id = ids_.MakeServer("undeletion item"), root = TestIdFactory::root();
   // Let there be a entry, from the server.
   mock_server_->set_conflict_all_commits(true);
   mock_server_->AddUpdateBookmark(id, root, "foo", 1, 10);
-  SyncShareAsDelegate();
+  SyncShareNudge();
   // Check it out and delete it.
   {
     WriteTransaction wtrans(FROM_HERE, UNITTEST, directory());
     MutableEntry entry(&wtrans, GET_BY_ID, id);
     ASSERT_TRUE(entry.good());
     EXPECT_FALSE(entry.Get(IS_UNAPPLIED_UPDATE));
     EXPECT_FALSE(entry.Get(IS_UNSYNCED));
     EXPECT_FALSE(entry.Get(IS_DEL));
     // Delete it locally.
     entry.Put(IS_DEL, true);
   }
-  SyncShareAsDelegate();
+  SyncShareNudge();
   // Confirm we see IS_DEL and not SERVER_IS_DEL.
   {
     ReadTransaction trans(FROM_HERE, directory());
     Entry entry(&trans, GET_BY_ID, id);
     ASSERT_TRUE(entry.good());
     EXPECT_FALSE(entry.Get(IS_UNAPPLIED_UPDATE));
     EXPECT_FALSE(entry.Get(IS_UNSYNCED));
     EXPECT_TRUE(entry.Get(IS_DEL));
     EXPECT_FALSE(entry.Get(SERVER_IS_DEL));
   }
-  SyncShareAsDelegate();
+  SyncShareNudge();
   // Say we do not get an update from server confirming deletion. Undelete
   // from server
   mock_server_->AddUpdateBookmark(id, root, "foo", 2, 12);
-  SyncShareAsDelegate();
+  SyncShareNudge();
   // IS_DEL and SERVER_IS_DEL now both false.
   {
     ReadTransaction trans(FROM_HERE, directory());
     Entry entry(&trans, GET_BY_ID, id);
     ASSERT_TRUE(entry.good());
     EXPECT_FALSE(entry.Get(IS_UNAPPLIED_UPDATE));
     EXPECT_FALSE(entry.Get(IS_UNSYNCED));
     EXPECT_FALSE(entry.Get(IS_DEL));
     EXPECT_FALSE(entry.Get(SERVER_IS_DEL));
   }
 }
 
 TEST_F(SyncerTest, TestUndeleteIgnoreCorrectlyUnappliedUpdate) {
   Id id1 = ids_.MakeServer("first"), id2 = ids_.MakeServer("second");
   Id root = TestIdFactory::root();
   // Duplicate! expect path clashing!
   mock_server_->set_conflict_all_commits(true);
   mock_server_->AddUpdateBookmark(id1, root, "foo", 1, 10);
   mock_server_->AddUpdateBookmark(id2, root, "foo", 1, 10);
-  SyncShareAsDelegate();
+  SyncShareNudge();
   mock_server_->AddUpdateBookmark(id2, root, "foo2", 2, 20);
-  SyncShareAsDelegate();  // Now just don't explode.
+  SyncShareNudge();  // Now just don't explode.
 }
 
 TEST_F(SyncerTest, ClientTagServerCreatedUpdatesWork) {
   mock_server_->AddUpdateDirectory(1, 0, "permitem1", 1, 10);
   mock_server_->SetLastUpdateClientTag("permfolder");
 
-  SyncShareAsDelegate();
+  SyncShareNudge();
 
   {
     ReadTransaction trans(FROM_HERE, directory());
     Entry perm_folder(&trans, GET_BY_CLIENT_TAG, "permfolder");
     ASSERT_TRUE(perm_folder.good());
     EXPECT_FALSE(perm_folder.Get(IS_DEL));
     EXPECT_FALSE(perm_folder.Get(IS_UNAPPLIED_UPDATE));
     EXPECT_FALSE(perm_folder.Get(IS_UNSYNCED));
     EXPECT_EQ(perm_folder.Get(UNIQUE_CLIENT_TAG), "permfolder");
     EXPECT_EQ(perm_folder.Get(NON_UNIQUE_NAME), "permitem1");
   }
 
   mock_server_->AddUpdateDirectory(1, 0, "permitem_renamed", 10, 100);
   mock_server_->SetLastUpdateClientTag("permfolder");
-  SyncShareAsDelegate();
+  SyncShareNudge();
 
   {
     ReadTransaction trans(FROM_HERE, directory());
 
     Entry perm_folder(&trans, GET_BY_CLIENT_TAG, "permfolder");
     ASSERT_TRUE(perm_folder.good());
     EXPECT_FALSE(perm_folder.Get(IS_DEL));
     EXPECT_FALSE(perm_folder.Get(IS_UNAPPLIED_UPDATE));
     EXPECT_FALSE(perm_folder.Get(IS_UNSYNCED));
     EXPECT_EQ(perm_folder.Get(UNIQUE_CLIENT_TAG), "permfolder");
     EXPECT_EQ(perm_folder.Get(NON_UNIQUE_NAME), "permitem_renamed");
   }
 }
 
 TEST_F(SyncerTest, ClientTagIllegalUpdateIgnored) {
   mock_server_->AddUpdateDirectory(1, 0, "permitem1", 1, 10);
   mock_server_->SetLastUpdateClientTag("permfolder");
 
-  SyncShareAsDelegate();
+  SyncShareNudge();
 
   {
     ReadTransaction trans(FROM_HERE, directory());
     Entry perm_folder(&trans, GET_BY_CLIENT_TAG, "permfolder");
     ASSERT_TRUE(perm_folder.good());
     EXPECT_FALSE(perm_folder.Get(IS_UNAPPLIED_UPDATE));
     EXPECT_FALSE(perm_folder.Get(IS_UNSYNCED));
     EXPECT_EQ(perm_folder.Get(UNIQUE_CLIENT_TAG), "permfolder");
     EXPECT_TRUE(perm_folder.Get(NON_UNIQUE_NAME) == "permitem1");
     EXPECT_TRUE(perm_folder.Get(ID).ServerKnows());
   }
 
   mock_server_->AddUpdateDirectory(1, 0, "permitem_renamed", 10, 100);
   mock_server_->SetLastUpdateClientTag("wrongtag");
-  SyncShareAsDelegate();
+  SyncShareNudge();
 
   {
     ReadTransaction trans(FROM_HERE, directory());
 
     // This update is rejected because it has the same ID, but a
     // different tag than one that is already on the client.
     // The client has a ServerKnows ID, which cannot be overwritten.
     Entry rejected_update(&trans, GET_BY_CLIENT_TAG, "wrongtag");
     EXPECT_FALSE(rejected_update.good());
 
@@ skipping 24 matching lines @@
     EXPECT_FALSE(perm_folder.Get(ID).ServerKnows());
     original_metahandle = perm_folder.Get(META_HANDLE);
   }
 
   mock_server_->AddUpdateBookmark(1, 0, "permitem_renamed", 10, 100);
   mock_server_->SetLastUpdateClientTag("clientperm");
   mock_server_->GetMutableLastUpdate()->mutable_specifics()->
       CopyFrom(server_bookmark);
   mock_server_->set_conflict_all_commits(true);
 
-  SyncShareAsDelegate();
+  SyncShareNudge();
   // This should cause client tag reunion, preserving the metahandle.
   {
     ReadTransaction trans(FROM_HERE, directory());
 
     Entry perm_folder(&trans, GET_BY_CLIENT_TAG, "clientperm");
     ASSERT_TRUE(perm_folder.good());
     EXPECT_FALSE(perm_folder.Get(IS_DEL));
     EXPECT_FALSE(perm_folder.Get(IS_UNAPPLIED_UPDATE));
     EXPECT_TRUE(perm_folder.Get(IS_UNSYNCED));
     EXPECT_EQ(10, perm_folder.Get(BASE_VERSION));
     // Entry should have been given the new ID while preserving the
     // metahandle; client should have won the conflict resolution.
     EXPECT_EQ(original_metahandle, perm_folder.Get(META_HANDLE));
     EXPECT_EQ("clientperm", perm_folder.Get(UNIQUE_CLIENT_TAG));
     EXPECT_EQ("clientname", perm_folder.Get(NON_UNIQUE_NAME));
     EXPECT_EQ(local_bookmark.SerializeAsString(),
               perm_folder.Get(SPECIFICS).SerializeAsString());
     EXPECT_TRUE(perm_folder.Get(ID).ServerKnows());
   }
 
   mock_server_->set_conflict_all_commits(false);
-  SyncShareAsDelegate();
+  SyncShareNudge();
 
   // The resolved entry ought to commit cleanly.
   {
     ReadTransaction trans(FROM_HERE, directory());
 
     Entry perm_folder(&trans, GET_BY_CLIENT_TAG, "clientperm");
     ASSERT_TRUE(perm_folder.good());
     EXPECT_FALSE(perm_folder.Get(IS_DEL));
     EXPECT_FALSE(perm_folder.Get(IS_UNAPPLIED_UPDATE));
     EXPECT_FALSE(perm_folder.Get(IS_UNSYNCED));
@@ skipping 18 matching lines @@
     perm_folder.Put(UNIQUE_CLIENT_TAG, "clientperm");
     perm_folder.Put(SPECIFICS, DefaultBookmarkSpecifics());
     perm_folder.Put(IS_UNSYNCED, true);
     perm_folder.Put(IS_DEL, true);
   }
 
   mock_server_->AddUpdateDirectory(1, 0, "permitem_renamed", 10, 100);
   mock_server_->SetLastUpdateClientTag("clientperm");
   mock_server_->set_conflict_all_commits(true);
 
-  SyncShareAsDelegate();
+  SyncShareNudge();
   // This should cause client tag overwrite.
   {
     ReadTransaction trans(FROM_HERE, directory());
 
     Entry perm_folder(&trans, GET_BY_CLIENT_TAG, "clientperm");
     ASSERT_TRUE(perm_folder.good());
     ASSERT_TRUE(perm_folder.Get(ID).ServerKnows());
     EXPECT_TRUE(perm_folder.Get(IS_DEL));
     EXPECT_FALSE(perm_folder.Get(IS_UNAPPLIED_UPDATE));
     EXPECT_TRUE(perm_folder.Get(IS_UNSYNCED));
     EXPECT_EQ(perm_folder.Get(BASE_VERSION), 10);
     EXPECT_EQ(perm_folder.Get(UNIQUE_CLIENT_TAG), "clientperm");
   }
 }
 
 TEST_F(SyncerTest, ClientTagUpdateClashesWithLocalEntry) {
   // This test is written assuming that ID comparison
   // will work out in a particular way.
   EXPECT_TRUE(ids_.FromNumber(1) < ids_.FromNumber(2));
   EXPECT_TRUE(ids_.FromNumber(3) < ids_.FromNumber(4));
 
   mock_server_->AddUpdateBookmark(1, 0, "One", 10, 100);
   mock_server_->SetLastUpdateClientTag("tag1");
   mock_server_->AddUpdateBookmark(4, 0, "Four", 11, 110);
   mock_server_->SetLastUpdateClientTag("tag2");
 
   mock_server_->set_conflict_all_commits(true);
 
-  SyncShareAsDelegate();
+  SyncShareNudge();
   int64 tag1_metahandle = syncable::kInvalidMetaHandle;
   int64 tag2_metahandle = syncable::kInvalidMetaHandle;
   // This should cause client tag overwrite.
   {
     ReadTransaction trans(FROM_HERE, directory());
 
     Entry tag1(&trans, GET_BY_CLIENT_TAG, "tag1");
     ASSERT_TRUE(tag1.good());
     ASSERT_TRUE(tag1.Get(ID).ServerKnows());
     ASSERT_TRUE(ids_.FromNumber(1) == tag1.Get(ID));
@@ skipping 19 matching lines @@
 
     syncable::Directory::ChildHandles children;
     directory()->GetChildHandlesById(&trans, trans.root_id(), &children);
     ASSERT_EQ(2U, children.size());
   }
 
   mock_server_->AddUpdateBookmark(2, 0, "Two", 12, 120);
   mock_server_->SetLastUpdateClientTag("tag1");
   mock_server_->AddUpdateBookmark(3, 0, "Three", 13, 130);
   mock_server_->SetLastUpdateClientTag("tag2");
-  SyncShareAsDelegate();
+  SyncShareNudge();
 
   {
     ReadTransaction trans(FROM_HERE, directory());
 
     Entry tag1(&trans, GET_BY_CLIENT_TAG, "tag1");
     ASSERT_TRUE(tag1.good());
     ASSERT_TRUE(tag1.Get(ID).ServerKnows());
     ASSERT_TRUE(ids_.FromNumber(1) == tag1.Get(ID))
         << "ID 1 should be kept, since it was less than ID 2.";
     EXPECT_FALSE(tag1.Get(IS_DEL));
@@ skipping 51 matching lines @@
   mock_server_->SetLastUpdateClientTag("tag c");
   mock_server_->AddUpdateBookmark(202, 0, "Two C", 19, 190);
   mock_server_->SetLastUpdateClientTag("tag c");
   mock_server_->AddUpdateBookmark(204, 0, "Three C", 20, 200);
   mock_server_->SetLastUpdateClientTag("tag c");
   mock_server_->AddUpdateBookmark(201, 0, "Four C", 21, 210);
   mock_server_->SetLastUpdateClientTag("tag c");  // Least ID: winner.
 
   mock_server_->set_conflict_all_commits(true);
 
-  SyncShareAsDelegate();
+  SyncShareNudge();
   // This should cause client tag overwrite.
   {
     ReadTransaction trans(FROM_HERE, directory());
 
     Entry tag_a(&trans, GET_BY_CLIENT_TAG, "tag a");
     ASSERT_TRUE(tag_a.good());
     EXPECT_TRUE(tag_a.Get(ID).ServerKnows());
     EXPECT_EQ(ids_.FromNumber(1), tag_a.Get(ID));
     EXPECT_FALSE(tag_a.Get(IS_DEL));
     EXPECT_FALSE(tag_a.Get(IS_UNAPPLIED_UPDATE));
@@ skipping 47 matching lines @@
     EXPECT_FALSE(tag_alpha.good());
     Entry tag_bob(&trans, GET_BY_SERVER_TAG, "bob");
     EXPECT_FALSE(tag_bob.good());
   }
 
   // Now download some tagged items as updates.
   mock_server_->AddUpdateDirectory(1, 0, "update1", 1, 10);
   mock_server_->SetLastUpdateServerTag("alpha");
   mock_server_->AddUpdateDirectory(2, 0, "update2", 2, 20);
   mock_server_->SetLastUpdateServerTag("bob");
-  SyncShareAsDelegate();
+  SyncShareNudge();
 
   {
     ReadTransaction trans(FROM_HERE, directory());
 
     // The new items should be applied as new entries, and we should be able
     // to look them up by their tag values.
     Entry tag_alpha(&trans, GET_BY_SERVER_TAG, "alpha");
     ASSERT_TRUE(tag_alpha.good());
     ASSERT_TRUE(!tag_alpha.Get(IS_DEL));
     ASSERT_TRUE(tag_alpha.Get(UNIQUE_SERVER_TAG) == "alpha");
@@ skipping 10 matching lines @@
     ASSERT_TRUE(hurdle.Get(UNIQUE_SERVER_TAG).empty());
     ASSERT_TRUE(hurdle.Get(NON_UNIQUE_NAME) == "bob");
   }
 }
 
 TEST_F(SyncerTest, GetUpdatesSetsRequestedTypes) {
   // The expectations of this test happen in the MockConnectionManager's
   // GetUpdates handler.  EnableDatatype sets the expectation value from our
   // set of enabled/disabled datatypes.
   EnableDatatype(syncable::BOOKMARKS);
-  SyncShareAsDelegate();
+  SyncShareNudge();
   EXPECT_EQ(1, mock_server_->GetAndClearNumGetUpdatesRequests());
 
   EnableDatatype(syncable::AUTOFILL);
-  SyncShareAsDelegate();
+  SyncShareNudge();
   EXPECT_EQ(1, mock_server_->GetAndClearNumGetUpdatesRequests());
 
   EnableDatatype(syncable::PREFERENCES);
-  SyncShareAsDelegate();
+  SyncShareNudge();
   EXPECT_EQ(1, mock_server_->GetAndClearNumGetUpdatesRequests());
 
   DisableDatatype(syncable::BOOKMARKS);
-  SyncShareAsDelegate();
+  SyncShareNudge();
   EXPECT_EQ(1, mock_server_->GetAndClearNumGetUpdatesRequests());
 
   DisableDatatype(syncable::AUTOFILL);
-  SyncShareAsDelegate();
+  SyncShareNudge();
   EXPECT_EQ(1, mock_server_->GetAndClearNumGetUpdatesRequests());
 
   DisableDatatype(syncable::PREFERENCES);
   EnableDatatype(syncable::AUTOFILL);
-  SyncShareAsDelegate();
+  SyncShareNudge();
   EXPECT_EQ(1, mock_server_->GetAndClearNumGetUpdatesRequests());
 }
 
+// A typical scenario: server and client each have one update for the other.
+// It is the "happy path" alternative to the test below.
+TEST_F(SyncerTest, UpdateThenCommit) {
+  syncable::Id to_receive = ids_.NewServerId();
+  syncable::Id to_commit = ids_.NewLocalId();
+
+  mock_server_->AddUpdateDirectory(to_receive, ids_.root(), "x", 1, 10);
+  int64 commit_handle = CreateUnsyncedDirectory("y", to_commit);
+  SyncShareNudge();
+
+  ReadTransaction trans(FROM_HERE, directory());
+
+  Entry received(&trans, GET_BY_ID, to_receive);
+  ASSERT_TRUE(received.good());
+  EXPECT_FALSE(received.Get(IS_UNSYNCED));
+  EXPECT_FALSE(received.Get(IS_UNAPPLIED_UPDATE));
+
+  Entry committed(&trans, GET_BY_HANDLE, commit_handle);
+  ASSERT_TRUE(committed.good());
+  EXPECT_FALSE(committed.Get(IS_UNSYNCED));
+  EXPECT_FALSE(committed.Get(IS_UNAPPLIED_UPDATE));
+}
+
+// Same as above, but this time we fail to download updates.
+// We should not attempt to commit anything unless we successfully downloaded
+// updates, otherwise we risk causing a server-side conflict.
+TEST_F(SyncerTest, UpdateFailsThenDontCommit) {
+  syncable::Id to_receive = ids_.NewServerId();
+  syncable::Id to_commit = ids_.NewLocalId();
+
+  mock_server_->AddUpdateDirectory(to_receive, ids_.root(), "x", 1, 10);
+  int64 commit_handle = CreateUnsyncedDirectory("y", to_commit);
+  mock_server_->FailNextPostBufferToPathCall();
+  SyncShareNudge();
+
+  ReadTransaction trans(FROM_HERE, directory());
+
+  // We did not receive this update.
+  Entry received(&trans, GET_BY_ID, to_receive);
+  ASSERT_FALSE(received.good());
+
+  // And our local update remains unapplied.
+  Entry committed(&trans, GET_BY_HANDLE, commit_handle);
+  ASSERT_TRUE(committed.good());
+  EXPECT_TRUE(committed.Get(IS_UNSYNCED));
+  EXPECT_FALSE(committed.Get(IS_UNAPPLIED_UPDATE));
+
+  // Inform the Mock we won't be fetching all updates.
+  mock_server_->ClearUpdatesQueue();
+}
+
+// Downloads two updates and applies them successfully.
+// This is the "happy path" alternative to the test below.
+TEST_F(SyncerTest, ConfigureDownloadsTwoBatchesSuccess) {
+  syncable::Id node1 = ids_.NewServerId();
+  syncable::Id node2 = ids_.NewServerId();
+
+  // Construct the first GetUpdates response.
+  mock_server_->AddUpdateDirectory(node1, ids_.root(), "one", 1, 10);
+  mock_server_->SetChangesRemaining(1);
+  mock_server_->NextUpdateBatch();
+
+  // Construct the second GetUpdates response.
+  mock_server_->AddUpdateDirectory(node2, ids_.root(), "two", 1, 20);
+
+  SyncShareConfigure();
+
+  ReadTransaction trans(FROM_HERE, directory());
+  // Both nodes should be downloaded and applied.
+
+  Entry n1(&trans, GET_BY_ID, node1);
+  ASSERT_TRUE(n1.good());
+  EXPECT_FALSE(n1.Get(IS_UNAPPLIED_UPDATE));
+
+  Entry n2(&trans, GET_BY_ID, node2);
+  ASSERT_TRUE(n2.good());
+  EXPECT_FALSE(n2.Get(IS_UNAPPLIED_UPDATE));
+}
+
+// Same as the above case, but this time the second batch fails to download.
+TEST_F(SyncerTest, ConfigureFailsDontApplyUpdates) {
+  syncable::Id node1 = ids_.NewServerId();
+  syncable::Id node2 = ids_.NewServerId();
+
+  // The scenario: we have two batches of updates with one update each.  A
+  // normal confgure step would download all the updates one batch at a time and
+  // apply them.  This configure will succeed in downloading the first batch
+  // then fail when downloading the second.
+  mock_server_->FailNthPostBufferToPathCall(2);
+
+  // Construct the first GetUpdates response.
+  mock_server_->AddUpdateDirectory(node1, ids_.root(), "one", 1, 10);
+  mock_server_->SetChangesRemaining(1);
+  mock_server_->NextUpdateBatch();
+
+  // Consutrct the second GetUpdates response.
+  mock_server_->AddUpdateDirectory(node2, ids_.root(), "two", 1, 20);
+
+  SyncShareConfigure();
+
+  ReadTransaction trans(FROM_HERE, directory());
+
+  // The first node was downloaded, but not applied.
+  Entry n1(&trans, GET_BY_ID, node1);
+  ASSERT_TRUE(n1.good());
+  EXPECT_TRUE(n1.Get(IS_UNAPPLIED_UPDATE));
+
+  // The second node was not downloaded.
+  Entry n2(&trans, GET_BY_ID, node2);
+  EXPECT_FALSE(n2.good());
+
+  // One update remains undownloaded.
+  mock_server_->ClearUpdatesQueue();
+}
+
 // Test what happens if a client deletes, then recreates, an object very
 // quickly.  It is possible that the deletion gets sent as a commit, and
 // the undelete happens during the commit request.  The principle here
 // is that with a single committing client, conflicts should never
 // be encountered, and a client encountering its past actions during
 // getupdates should never feed back to override later actions.
 //
 // In cases of ordering A-F below, the outcome should be the same.
 //   Exercised by UndeleteDuringCommit:
 //     A. Delete - commit - undelete - commitresponse.
@@ skipping 117 matching lines @@
   }
 
  protected:
   const std::string client_tag_;
   int64 metahandle_;
 };
 
 TEST_F(SyncerUndeletionTest, UndeleteDuringCommit) {
   Create();
   ExpectUnsyncedCreation();
-  SyncShareAsDelegate();
+  SyncShareNudge();
 
   EXPECT_EQ(1, mock_server_->GetAndClearNumGetUpdatesRequests());
   EXPECT_EQ(0, session_->status_controller().TotalNumConflictingItems());
   ExpectSyncedAndCreated();
 
   // Delete, begin committing the delete, then undelete while committing.
   Delete();
   ExpectUnsyncedDeletion();
   mock_server_->SetMidCommitCallback(
       base::Bind(&SyncerUndeletionTest::Undelete, base::Unretained(this)));
-  SyncShareAsDelegate();
+  SyncShareNudge();
 
   // The item ought to exist as an unsynced undeletion (meaning,
   // we think that the next commit ought to be a recreation commit).
   EXPECT_EQ(0, session_->status_controller().TotalNumConflictingItems());
   EXPECT_EQ(1, mock_server_->GetAndClearNumGetUpdatesRequests());
   ExpectUnsyncedUndeletion();
 
   // Now, encounter a GetUpdates corresponding to the deletion from
   // the server.  The undeletion should prevail again and be committed.
   // None of this should trigger any conflict detection -- it is perfectly
   // normal to recieve updates from our own commits.
   mock_server_->SetMidCommitCallback(base::Closure());
   mock_server_->AddUpdateTombstone(Get(metahandle_, ID));
-  SyncShareAsDelegate();
+  SyncShareNudge();
   EXPECT_EQ(0, session_->status_controller().TotalNumConflictingItems());
   EXPECT_EQ(1, mock_server_->GetAndClearNumGetUpdatesRequests());
   ExpectSyncedAndCreated();
 }
 
 TEST_F(SyncerUndeletionTest, UndeleteBeforeCommit) {
   Create();
   ExpectUnsyncedCreation();
-  SyncShareAsDelegate();
+  SyncShareNudge();
 
   EXPECT_EQ(1, mock_server_->GetAndClearNumGetUpdatesRequests());
   EXPECT_EQ(0, session_->status_controller().TotalNumConflictingItems());
   ExpectSyncedAndCreated();
 
   // Delete and undelete, then sync to pick up the result.
   Delete();
   ExpectUnsyncedDeletion();
   Undelete();
   ExpectUnsyncedEdit();  // Edit, not undelete: server thinks it exists.
-  SyncShareAsDelegate();
+  SyncShareNudge();
 
   // The item ought to have committed successfully.
   EXPECT_EQ(0, session_->status_controller().TotalNumConflictingItems());
   EXPECT_EQ(1, mock_server_->GetAndClearNumGetUpdatesRequests());
   ExpectSyncedAndCreated();
   EXPECT_EQ(2, Get(metahandle_, BASE_VERSION));
 
   // Now, encounter a GetUpdates corresponding to the just-committed
   // update.
   mock_server_->AddUpdateFromLastCommit();
-  SyncShareAsDelegate();
+  SyncShareNudge();
   EXPECT_EQ(0, session_->status_controller().TotalNumConflictingItems());
   EXPECT_EQ(1, mock_server_->GetAndClearNumGetUpdatesRequests());
   ExpectSyncedAndCreated();
 }
 
 TEST_F(SyncerUndeletionTest, UndeleteAfterCommitButBeforeGetUpdates) {
   Create();
   ExpectUnsyncedCreation();
-  SyncShareAsDelegate();
+  SyncShareNudge();
 
   EXPECT_EQ(1, mock_server_->GetAndClearNumGetUpdatesRequests());
   EXPECT_EQ(0, session_->status_controller().TotalNumConflictingItems());
   ExpectSyncedAndCreated();
 
   // Delete and commit.
   Delete();
   ExpectUnsyncedDeletion();
-  SyncShareAsDelegate();
+  SyncShareNudge();
 
   // The item ought to have committed successfully.
   EXPECT_EQ(0, session_->status_controller().TotalNumConflictingItems());
   EXPECT_EQ(1, mock_server_->GetAndClearNumGetUpdatesRequests());
   ExpectSyncedAndDeleted();
 
   // Before the GetUpdates, the item is locally undeleted.
   Undelete();
   ExpectUnsyncedUndeletion();
 
   // Now, encounter a GetUpdates corresponding to the just-committed
   // deletion update.  The undeletion should prevail.
   mock_server_->AddUpdateFromLastCommit();
-  SyncShareAsDelegate();
+  SyncShareNudge();
   EXPECT_EQ(0, session_->status_controller().TotalNumConflictingItems());
   EXPECT_EQ(1, mock_server_->GetAndClearNumGetUpdatesRequests());
   ExpectSyncedAndCreated();
 }
 
 TEST_F(SyncerUndeletionTest, UndeleteAfterDeleteAndGetUpdates) {
   Create();
   ExpectUnsyncedCreation();
-  SyncShareAsDelegate();
+  SyncShareNudge();
 
   EXPECT_EQ(1, mock_server_->GetAndClearNumGetUpdatesRequests());
   EXPECT_EQ(0, session_->status_controller().TotalNumConflictingItems());
   ExpectSyncedAndCreated();
 
   mock_server_->AddUpdateFromLastCommit();
-  SyncShareAsDelegate();
+  SyncShareNudge();
   EXPECT_EQ(1, mock_server_->GetAndClearNumGetUpdatesRequests());
   EXPECT_EQ(0, session_->status_controller().TotalNumConflictingItems());
   ExpectSyncedAndCreated();
 
   // Delete and commit.
   Delete();
   ExpectUnsyncedDeletion();
-  SyncShareAsDelegate();
+  SyncShareNudge();
 
   // The item ought to have committed successfully.
   EXPECT_EQ(0, session_->status_controller().TotalNumConflictingItems());
   EXPECT_EQ(1, mock_server_->GetAndClearNumGetUpdatesRequests());
   ExpectSyncedAndDeleted();
 
   // Now, encounter a GetUpdates corresponding to the just-committed
   // deletion update.  Should be consistent.
   mock_server_->AddUpdateFromLastCommit();
-  SyncShareAsDelegate();
+  SyncShareNudge();
   EXPECT_EQ(0, session_->status_controller().TotalNumConflictingItems());
   EXPECT_EQ(1, mock_server_->GetAndClearNumGetUpdatesRequests());
   ExpectSyncedAndDeleted();
 
   // After the GetUpdates, the item is locally undeleted.
   Undelete();
   ExpectUnsyncedUndeletion();
 
   // Now, encounter a GetUpdates corresponding to the just-committed
   // deletion update.  The undeletion should prevail.
-  SyncShareAsDelegate();
+  SyncShareNudge();
   EXPECT_EQ(0, session_->status_controller().TotalNumConflictingItems());
   EXPECT_EQ(1, mock_server_->GetAndClearNumGetUpdatesRequests());
   ExpectSyncedAndCreated();
 }
 
 // Test processing of undeletion GetUpdateses.
 TEST_F(SyncerUndeletionTest, UndeleteAfterOtherClientDeletes) {
   Create();
   ExpectUnsyncedCreation();
-  SyncShareAsDelegate();
+  SyncShareNudge();
 
   EXPECT_EQ(1, mock_server_->GetAndClearNumGetUpdatesRequests());
   EXPECT_EQ(0, session_->status_controller().TotalNumConflictingItems());
   ExpectSyncedAndCreated();
 
   // Add a delete from the server.
   mock_server_->AddUpdateFromLastCommit();
-  SyncShareAsDelegate();
+  SyncShareNudge();
   EXPECT_EQ(1, mock_server_->GetAndClearNumGetUpdatesRequests());
   EXPECT_EQ(0, session_->status_controller().TotalNumConflictingItems());
   ExpectSyncedAndCreated();
 
   // Some other client deletes the item.
   mock_server_->AddUpdateTombstone(Get(metahandle_, ID));
-  SyncShareAsDelegate();
+  SyncShareNudge();
 
   // The update ought to have applied successfully.
   EXPECT_EQ(0, session_->status_controller().TotalNumConflictingItems());
   EXPECT_EQ(1, mock_server_->GetAndClearNumGetUpdatesRequests());
   ExpectSyncedAndDeleted();
 
   // Undelete it locally.
   Undelete();
   ExpectUnsyncedUndeletion();
-  SyncShareAsDelegate();
+  SyncShareNudge();
   EXPECT_EQ(0, session_->status_controller().TotalNumConflictingItems());
   EXPECT_EQ(1, mock_server_->GetAndClearNumGetUpdatesRequests());
   ExpectSyncedAndCreated();
 
   // Now, encounter a GetUpdates corresponding to the just-committed
   // deletion update.  The undeletion should prevail.
   mock_server_->AddUpdateFromLastCommit();
-  SyncShareAsDelegate();
+  SyncShareNudge();
   EXPECT_EQ(0, session_->status_controller().TotalNumConflictingItems());
   EXPECT_EQ(1, mock_server_->GetAndClearNumGetUpdatesRequests());
   ExpectSyncedAndCreated();
 }
 
 TEST_F(SyncerUndeletionTest, UndeleteAfterOtherClientDeletesImmediately) {
   Create();
   ExpectUnsyncedCreation();
-  SyncShareAsDelegate();
+  SyncShareNudge();
 
   EXPECT_EQ(1, mock_server_->GetAndClearNumGetUpdatesRequests());
   EXPECT_EQ(0, session_->status_controller().TotalNumConflictingItems());
   ExpectSyncedAndCreated();
 
   // Some other client deletes the item before we get a chance
   // to GetUpdates our original request.
   mock_server_->AddUpdateTombstone(Get(metahandle_, ID));
-  SyncShareAsDelegate();
+  SyncShareNudge();
 
   // The update ought to have applied successfully.
   EXPECT_EQ(0, session_->status_controller().TotalNumConflictingItems());
   EXPECT_EQ(1, mock_server_->GetAndClearNumGetUpdatesRequests());
   ExpectSyncedAndDeleted();
 
   // Undelete it locally.
   Undelete();
   ExpectUnsyncedUndeletion();
-  SyncShareAsDelegate();
+  SyncShareNudge();
   EXPECT_EQ(0, session_->status_controller().TotalNumConflictingItems());
   EXPECT_EQ(1, mock_server_->GetAndClearNumGetUpdatesRequests());
   ExpectSyncedAndCreated();
 
   // Now, encounter a GetUpdates corresponding to the just-committed
   // deletion update.  The undeletion should prevail.
   mock_server_->AddUpdateFromLastCommit();
-  SyncShareAsDelegate();
+  SyncShareNudge();
   EXPECT_EQ(0, session_->status_controller().TotalNumConflictingItems());
   EXPECT_EQ(1, mock_server_->GetAndClearNumGetUpdatesRequests());
   ExpectSyncedAndCreated();
 }
 
 TEST_F(SyncerUndeletionTest, OtherClientUndeletes) {
   Create();
   ExpectUnsyncedCreation();
-  SyncShareAsDelegate();
+  SyncShareNudge();
 
   EXPECT_EQ(1, mock_server_->GetAndClearNumGetUpdatesRequests());
   EXPECT_EQ(0, session_->status_controller().TotalNumConflictingItems());
   ExpectSyncedAndCreated();
 
   // Get the updates of our just-committed entry.
   mock_server_->AddUpdateFromLastCommit();
-  SyncShareAsDelegate();
+  SyncShareNudge();
   EXPECT_EQ(1, mock_server_->GetAndClearNumGetUpdatesRequests());
   EXPECT_EQ(0, session_->status_controller().TotalNumConflictingItems());
   ExpectSyncedAndCreated();
 
   // We delete the item.
   Delete();
   ExpectUnsyncedDeletion();
-  SyncShareAsDelegate();
+  SyncShareNudge();
 
   // The update ought to have applied successfully.
   EXPECT_EQ(0, session_->status_controller().TotalNumConflictingItems());
   EXPECT_EQ(1, mock_server_->GetAndClearNumGetUpdatesRequests());
   ExpectSyncedAndDeleted();
 
   // Now, encounter a GetUpdates corresponding to the just-committed
   // deletion update.
   mock_server_->AddUpdateFromLastCommit();
-  SyncShareAsDelegate();
+  SyncShareNudge();
   EXPECT_EQ(0, session_->status_controller().TotalNumConflictingItems());
   EXPECT_EQ(1, mock_server_->GetAndClearNumGetUpdatesRequests());
   ExpectSyncedAndDeleted();
 
   // Some other client undeletes the item.
   mock_server_->AddUpdateBookmark(Get(metahandle_, ID),
                                   Get(metahandle_, PARENT_ID),
                                   "Thadeusz", 100, 1000);
   mock_server_->SetLastUpdateClientTag(client_tag_);
-  SyncShareAsDelegate();
+  SyncShareNudge();
   EXPECT_EQ(0, session_->status_controller().TotalNumConflictingItems());
   EXPECT_EQ(1, mock_server_->GetAndClearNumGetUpdatesRequests());
   ExpectSyncedAndCreated();
   EXPECT_EQ("Thadeusz", Get(metahandle_, NON_UNIQUE_NAME));
 }
 
 TEST_F(SyncerUndeletionTest, OtherClientUndeletesImmediately) {
   Create();
   ExpectUnsyncedCreation();
-  SyncShareAsDelegate();
+  SyncShareNudge();
 
   EXPECT_EQ(1, mock_server_->GetAndClearNumGetUpdatesRequests());
   EXPECT_EQ(0, session_->status_controller().TotalNumConflictingItems());
   ExpectSyncedAndCreated();
 
   // Get the updates of our just-committed entry.
   mock_server_->AddUpdateFromLastCommit();
-  SyncShareAsDelegate();
+  SyncShareNudge();
   EXPECT_EQ(1, mock_server_->GetAndClearNumGetUpdatesRequests());
   EXPECT_EQ(0, session_->status_controller().TotalNumConflictingItems());
   ExpectSyncedAndCreated();
 
   // We delete the item.
   Delete();
   ExpectUnsyncedDeletion();
-  SyncShareAsDelegate();
+  SyncShareNudge();
 
   // The update ought to have applied successfully.
   EXPECT_EQ(0, session_->status_controller().TotalNumConflictingItems());
   EXPECT_EQ(1, mock_server_->GetAndClearNumGetUpdatesRequests());
   ExpectSyncedAndDeleted();
 
   // Some other client undeletes before we see the update from our
   // commit.
   mock_server_->AddUpdateBookmark(Get(metahandle_, ID),
                                   Get(metahandle_, PARENT_ID),
                                   "Thadeusz", 100, 1000);
   mock_server_->SetLastUpdateClientTag(client_tag_);
-  SyncShareAsDelegate();
+  SyncShareNudge();
   EXPECT_EQ(0, session_->status_controller().TotalNumConflictingItems());
   EXPECT_EQ(1, mock_server_->GetAndClearNumGetUpdatesRequests());
   ExpectSyncedAndCreated();
   EXPECT_EQ("Thadeusz", Get(metahandle_, NON_UNIQUE_NAME));
 }
 
 // A group of tests exercising the syncer's handling of sibling ordering, as
 // represented in the sync protocol.
 class SyncerPositionUpdateTest : public SyncerTest {
  public:
@@ skipping 44 matching lines @@
 
 TEST_F(SyncerPositionUpdateTest, InOrderPositive) {
   // Add a bunch of items in increasing order, starting with just positive
   // position values.
   AddRootItemWithPosition(100);
   AddRootItemWithPosition(199);
   AddRootItemWithPosition(200);
   AddRootItemWithPosition(201);
   AddRootItemWithPosition(400);
 
-  SyncShareAsDelegate();
+  SyncShareNudge();
   ExpectLocalItemsInServerOrder();
 }
 
 TEST_F(SyncerPositionUpdateTest, InOrderNegative) {
   // Test negative position values, but in increasing order.
   AddRootItemWithPosition(-400);
   AddRootItemWithPosition(-201);
   AddRootItemWithPosition(-200);
   AddRootItemWithPosition(-150);
   AddRootItemWithPosition(100);
 
-  SyncShareAsDelegate();
+  SyncShareNudge();
   ExpectLocalItemsInServerOrder();
 }
 
 TEST_F(SyncerPositionUpdateTest, ReverseOrder) {
   // Test when items are sent in the reverse order.
   AddRootItemWithPosition(400);
   AddRootItemWithPosition(201);
   AddRootItemWithPosition(200);
   AddRootItemWithPosition(100);
   AddRootItemWithPosition(-150);
   AddRootItemWithPosition(-201);
   AddRootItemWithPosition(-200);
   AddRootItemWithPosition(-400);
 
-  SyncShareAsDelegate();
+  SyncShareNudge();
   ExpectLocalItemsInServerOrder();
 }
 
 TEST_F(SyncerPositionUpdateTest, RandomOrderInBatches) {
   // Mix it all up, interleaving position values, and try multiple batches of
   // updates.
   AddRootItemWithPosition(400);
   AddRootItemWithPosition(201);
   AddRootItemWithPosition(-400);
   AddRootItemWithPosition(100);
 
-  SyncShareAsDelegate();
+  SyncShareNudge();
   ExpectLocalItemsInServerOrder();
 
   AddRootItemWithPosition(-150);
   AddRootItemWithPosition(-200);
   AddRootItemWithPosition(200);
   AddRootItemWithPosition(-201);
 
-  SyncShareAsDelegate();
+  SyncShareNudge();
   ExpectLocalItemsInServerOrder();
 
   AddRootItemWithPosition(-144);
 
-  SyncShareAsDelegate();
+  SyncShareNudge();
   ExpectLocalItemsInServerOrder();
 }
 
 class SyncerPositionTiebreakingTest : public SyncerTest {
  public:
   SyncerPositionTiebreakingTest()
       : low_id_(Id::CreateFromServerId("A")),
         mid_id_(Id::CreateFromServerId("M")),
         high_id_(Id::CreateFromServerId("Z")),
         next_revision_(1) {
@@ skipping 39 matching lines @@
 
  private:
   int next_revision_;
   DISALLOW_COPY_AND_ASSIGN(SyncerPositionTiebreakingTest);
 };
 
 TEST_F(SyncerPositionTiebreakingTest, LowMidHigh) {
   Add(low_id_);
   Add(mid_id_);
   Add(high_id_);
-  SyncShareAsDelegate();
+  SyncShareNudge();
   ExpectLocalOrderIsByServerId();
 }
 
 TEST_F(SyncerPositionTiebreakingTest, LowHighMid) {
   Add(low_id_);
   Add(high_id_);
   Add(mid_id_);
-  SyncShareAsDelegate();
+  SyncShareNudge();
   ExpectLocalOrderIsByServerId();
 }
 
 TEST_F(SyncerPositionTiebreakingTest, HighMidLow) {
   Add(high_id_);
   Add(mid_id_);
   Add(low_id_);
-  SyncShareAsDelegate();
+  SyncShareNudge();
   ExpectLocalOrderIsByServerId();
 }
 
 TEST_F(SyncerPositionTiebreakingTest, HighLowMid) {
   Add(high_id_);
   Add(low_id_);
   Add(mid_id_);
-  SyncShareAsDelegate();
+  SyncShareNudge();
   ExpectLocalOrderIsByServerId();
 }
 
 TEST_F(SyncerPositionTiebreakingTest, MidHighLow) {
   Add(mid_id_);
   Add(high_id_);
   Add(low_id_);
-  SyncShareAsDelegate();
+  SyncShareNudge();
   ExpectLocalOrderIsByServerId();
 }
 
 TEST_F(SyncerPositionTiebreakingTest, MidLowHigh) {
   Add(mid_id_);
   Add(low_id_);
   Add(high_id_);
-  SyncShareAsDelegate();
+  SyncShareNudge();
   ExpectLocalOrderIsByServerId();
 }
 
 }  // namespace browser_sync