[Sync] Add location parameter to SyncChange in Sync API.

chrome/browser/prefs/pref_model_associator.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/prefs/pref_model_associator.h"
 
 #include "base/auto_reset.h"
 #include "base/json/json_reader.h"
 #include "base/json/json_string_value_serializer.h"
 #include "base/location.h"
@@ skipping 62 matching lines @@
     }
 
     // If the merge resulted in an updated value, inform the syncer.
     if (!value->Equals(new_value.get())) {
       syncer::SyncData sync_data;
       if (!CreatePrefSyncData(pref->name(), *new_value, &sync_data)) {
         LOG(ERROR) << "Failed to update preference.";
         return;
       }
       sync_changes->push_back(
-          syncer::SyncChange(syncer::SyncChange::ACTION_UPDATE, sync_data));
+          syncer::SyncChange(FROM_HERE,
+                             syncer::SyncChange::ACTION_UPDATE,
+                             sync_data));
     }
   } else if (pref->IsUserControlled()) {
     // The server does not know about this preference and should be added
     // to the syncer's database.
     syncer::SyncData sync_data;
     if (!CreatePrefSyncData(pref->name(), *pref->GetValue(), &sync_data)) {
       LOG(ERROR) << "Failed to update preference.";
       return;
     }
     sync_changes->push_back(
-        syncer::SyncChange(syncer::SyncChange::ACTION_ADD, sync_data));
+        syncer::SyncChange(FROM_HERE,
+                           syncer::SyncChange::ACTION_ADD,
+                           sync_data));
   } else {
     // This pref does not have a sync value but also does not have a user
     // controlled value (either it's a default value or it's policy controlled,
     // either way it's not interesting). We can ignore it. Once it gets changed,
     // we'll send the new user controlled value to the syncer.
     return;
   }
 
   // Make sure we add it to our list of synced preferences so we know what
   // the server is aware of.
@@ skipping 316 matching lines @@
     // and hasn't been changed yet we don't) and take care syncing any new data.
     InitPrefAndAssociate(syncer::SyncData(), name, &changes);
   } else {
     // We are already syncing this preference, just update it's sync node.
     syncer::SyncData sync_data;
     if (!CreatePrefSyncData(name, *preference->GetValue(), &sync_data)) {
       LOG(ERROR) << "Failed to update preference.";
       return;
     }
     changes.push_back(
-        syncer::SyncChange(syncer::SyncChange::ACTION_UPDATE, sync_data));
+        syncer::SyncChange(FROM_HERE,
+                           syncer::SyncChange::ACTION_UPDATE,
+                           sync_data));
   }
 
   syncer::SyncError error =
       sync_processor_->ProcessSyncChanges(FROM_HERE, changes);
 }
 
 void PrefModelAssociator::SetPrefService(PrefService* pref_service) {
   DCHECK(pref_service_ == NULL);
   pref_service_ = pref_service;
 }