Add PrefStore::GetValues

components/filesystem/public/cpp/prefs/filesystem_json_pref_store.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 "components/filesystem/public/cpp/prefs/filesystem_json_pref_store.h"
 
 #include <stddef.h>
 
 #include <algorithm>
 #include <utility>
@@ skipping 66 matching lines @@
 
   base::Value* tmp = nullptr;
   if (!prefs_->Get(key, &tmp))
     return false;
 
   if (result)
     *result = tmp;
   return true;
 }
 
+std::unique_ptr<base::DictionaryValue> FilesystemJsonPrefStore::GetValues()
+    const {
+  return prefs_->CreateDeepCopy();
+}
+
 void FilesystemJsonPrefStore::AddObserver(PrefStore::Observer* observer) {
   DCHECK(CalledOnValidThread());
 
   observers_.AddObserver(observer);
 }
 
 void FilesystemJsonPrefStore::RemoveObserver(PrefStore::Observer* observer) {
   DCHECK(CalledOnValidThread());
 
   observers_.RemoveObserver(observer);
@@ skipping 317 matching lines @@
           reinterpret_cast<char*>(&contents.front()), contents.size()));
       read_result->value = deserializer.Deserialize(&error_code, &error_msg);
       read_result->error = HandleReadErrors(read_result->value.get());
     }
   }
 
   OnFileRead(std::move(read_result));
 }
 
 }  // namespace filesystem