[Payments] Add web app manifest section table in SQLite web database

components/payments/android/web_app_manifest_section_table.h

+// Copyright 2017 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.
+
+#ifndef COMPONENTS_PAYMENTS_ANDROID_WEB_APP_MANIFEST_SECTION_TABLE_H_
+#define COMPONENTS_PAYMENTS_ANDROID_WEB_APP_MANIFEST_SECTION_TABLE_H_
+
+#include <string>
+#include <vector>
+
+#include "components/payments/content/payment_manifest_parser.mojom.h"
+#include "components/webdata/common/web_database.h"
+#include "components/webdata/common/web_database_table.h"
+
+namespace payments {
+
+// This class manages web_app_manifest_section table in SQLite database. It
+// expects the following schema.
+// The interfaces should only be accessed on DB thread.
+//
+// web_app_manifest_section The table stores the contents in
+//                          WebAppManifestSection.
+//
+//  id                      The package name of the app.
+//  min_version             Minimum version number of the app.
+//  fingerprints            The result of SHA256(signing certificate bytes) for
+//                          each certificate in the app.
+//
+class WebAppManifestSectionTable : public WebDatabaseTable {
+ public:
+  WebAppManifestSectionTable();
+  ~WebAppManifestSectionTable() override;
+
+  // Retrieves the WebAppManifestSectionTable* owned by |db|.
+  static WebAppManifestSectionTable* FromWebDatabase(WebDatabase* db);
+
+  // WebDatabaseTable:
+  WebDatabaseTable::TypeKey GetTypeKey() const override;
+  bool CreateTablesIfNecessary() override;
+  bool IsSyncable() override;
+  bool MigrateToVersion(int version, bool* update_compatible_version) override;
+
+  // Adds the web app |*manifest|. Note that the previous web app manifest will
+  // be deleted.
+  bool AddWebAppManifest(mojom::WebAppManifestSection* manifest);
+
+  // Gets manifest of the |web_app|. Returns nullptr if no manifest exists for
+  // the |web_app|.
+  mojom::WebAppManifestSectionPtr GetWebAppManifest(std::string web_app);

[please use gerrit instead, 2017/04/12 14:28:09]

const-ref parameter

[gogerald1, 2017/04/12 15:27:36]

Done.

+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(WebAppManifestSectionTable);
+};
+
+}  // namespace payments
+
+#endif  // COMPONENTS_PAYMENTS_ANDROID_WEB_APP_MANIFEST_SECTION_TABLE_H_