Provide API in RequestCoordinator to remove results by client ID.

components/offline_pages/offline_page_item.cc

 // Copyright 2015 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/offline_pages/offline_page_item.h"
 
 #include "net/base/filename_util.h"
 
 namespace offline_pages {
 
 namespace {
 const int kCurrentVersion = 1;
 }
 
 ClientId::ClientId() : name_space(""), id("") {}
 
 ClientId::ClientId(std::string name_space, std::string id)
     : name_space(name_space), id(id) {}
 
 bool ClientId::operator==(const ClientId& client_id) const {
   return name_space == client_id.name_space && id == client_id.id;
 }
 
+bool ClientId::operator<(const ClientId& client_id) const {
+  if (name_space == client_id.name_space)
+    return (id < client_id.id);
+
+  return name_space < client_id.name_space;
+}
+
 OfflinePageItem::OfflinePageItem()
     : version(kCurrentVersion),
       file_size(0),
       access_count(0),
       flags(NO_FLAG) {
 }
 
 OfflinePageItem::OfflinePageItem(const GURL& url,
                                  int64_t offline_id,
                                  const ClientId& client_id,
@@ skipping 32 matching lines @@
 
 GURL OfflinePageItem::GetOfflineURL() const {
   return net::FilePathToFileURL(file_path);
 }
 
 bool OfflinePageItem::IsExpired() const {
   return creation_time < expiration_time;
 }
 
 }  // namespace offline_pages