Remove knowledge of Chrome-specific SyncableService classes from WebDataService.

chrome/browser/webdata/autofill_profile_syncable_service.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/webdata/autofill_profile_syncable_service.h"
 
 #include "base/guid.h"
 #include "base/location.h"
 #include "base/logging.h"
 #include "base/utf_string_conversions.h"
@@ skipping 15 matching lines @@
 
 namespace {
 
 std::string LimitData(const std::string& data) {
   std::string sanitized_value(data);
   if (sanitized_value.length() > AutofillTable::kMaxDataLength)
     sanitized_value.resize(AutofillTable::kMaxDataLength);
   return sanitized_value;
 }
 
+class DataObject : public base::SupportsUserData::Data {
+ public:
+  explicit DataObject(scoped_ptr<AutofillProfileSyncableService> service)
+      : service_(service.Pass()) {
+  }
+
+  AutofillProfileSyncableService* service() {
+    return service_.get();
+  }
+
+ private:
+  scoped_ptr<AutofillProfileSyncableService> service_;
+
+  DISALLOW_COPY_AND_ASSIGN(DataObject);
+};
+
+void* DataKey() {
+  return reinterpret_cast<void*>(
+      &AutofillProfileSyncableService::AttachToWebData);
+}
+
 }  // namespace
 
 const char kAutofillProfileTag[] = "google_chrome_autofill_profiles";
 
 AutofillProfileSyncableService::AutofillProfileSyncableService(
     WebDataService* web_data_service)
     : web_data_service_(web_data_service) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::DB));
   DCHECK(web_data_service_);
   notification_registrar_.Add(
       this,
       chrome::NOTIFICATION_AUTOFILL_PROFILE_CHANGED,
       content::Source<WebDataService>(web_data_service_));
 }
 
 AutofillProfileSyncableService::~AutofillProfileSyncableService() {
   DCHECK(CalledOnValidThread());
 }
 
+// static
+AutofillProfileSyncableService* AutofillProfileSyncableService::FromWebData(
+    WebDataServiceBase* service) {
+  return static_cast<DataObject*>(
+      service->GetDBUserData()->GetUserData(DataKey()))->service();
+}
+
+// static
+void AutofillProfileSyncableService::AttachToWebData(
+    scoped_ptr<AutofillProfileSyncableService> service,
+    WebDataServiceBase* web_data) {
+  web_data->GetDBUserData()->SetUserData(DataKey(),
+                                         new DataObject(service.Pass()));
+}
+
 AutofillProfileSyncableService::AutofillProfileSyncableService()
     : web_data_service_(NULL) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::DB));
 }
 
 syncer::SyncMergeResult
 AutofillProfileSyncableService::MergeDataAndStartSyncing(
     syncer::ModelType type,
     const syncer::SyncDataList& initial_sync_data,
     scoped_ptr<syncer::SyncChangeProcessor> sync_processor,
@@ skipping 481 matching lines @@
 }
 
 AutofillTable* AutofillProfileSyncableService::GetAutofillTable() const {
   return AutofillTable::FromWebDatabase(web_data_service_->GetDatabase());
 }
 
 AutofillProfileSyncableService::DataBundle::DataBundle() {}
 
 AutofillProfileSyncableService::DataBundle::~DataBundle() {
 }