Clear browsing data clears data for type kStorageTypeTemporary but not for kStorageTypeSyncable.

chrome/browser/browsing_data/browsing_data_remover.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/browsing_data/browsing_data_remover.h"
 
 #include <map>
 #include <set>
 
 #include "base/bind.h"
@@ skipping 865 matching lines @@
         base::Bind(&BrowsingDataRemover::OnGotQuotaManagedOrigins,
                    base::Unretained(this)));
   }
 
   // Do the same for temporary quota.
   ++quota_managed_storage_types_to_delete_count_;
   quota_manager_->GetOriginsModifiedSince(
       quota::kStorageTypeTemporary, delete_begin_,
       base::Bind(&BrowsingDataRemover::OnGotQuotaManagedOrigins,
                  base::Unretained(this)));
+
+  // Do the same for syncable quota.
+  ++quota_managed_storage_types_to_delete_count_;
+  quota_manager_->GetOriginsModifiedSince(
+      quota::kStorageTypeSyncable, delete_begin_,
+      base::Bind(&BrowsingDataRemover::OnGotQuotaManagedOrigins,
+                 base::Unretained(this)));
+
 }
 
 void BrowsingDataRemover::OnGotQuotaManagedOrigins(
     const std::set<GURL>& origins, quota::StorageType type) {
   DCHECK_GT(quota_managed_storage_types_to_delete_count_, 0);
   // Walk through the origins passed in, delete quota of |type| from each that
   // matches the |origin_set_mask_|.
   std::set<GURL>::const_iterator origin;
   for (origin = origins.begin(); origin != origins.end(); ++origin) {
     // TODO(mkwst): Clean this up, it's slow. http://crbug.com/130746
@@ skipping 129 matching lines @@
       BrowserThread::UI, FROM_HERE,
       base::Bind(&BrowsingDataRemover::OnClearedFormData,
                  base::Unretained(this)));
 }
 
 void BrowsingDataRemover::OnClearedFormData() {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   waiting_for_clear_form_ = false;
   NotifyAndDeleteIfDone();
 }