[Upboarding]: Default QueryTileConfig.

- Will continue to implement CreateFromFinch once
the flag change is done, include the unittest.

Bug: 1066550
Change-Id: Ie63e4b037eeb8ffc5d100d3fff7cc168f46eb406
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2130182Reviewed-by: Hesen Zhang <hesen@chromium.org>
Reviewed-by: David Trainor <dtrainor@chromium.org>
Commit-Queue: Hesen Zhang <hesen@chromium.org>
Auto-Submit: Hesen Zhang <hesen@chromium.org>
Cr-Commit-Position: refs/heads/master@{#755454}

chrome/browser/upboarding/query_tiles/internal/BUILD.gn

@@ -11,6 +11,8 @@ source_set("internal") {
   sources = [
     "cached_image_loader.cc",
     "cached_image_loader.h",
+    "config.cc",
+    "config.h",
     "image_data_store.cc",
     "image_data_store.h",
     "image_decoder.cc",

chrome/browser/upboarding/query_tiles/internal/config.cc

+// Copyright 2020 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/upboarding/query_tiles/internal/config.h"
+
+namespace upboarding {
+namespace {
+
+// Default base URL string for the Query Tiles server.
+constexpr char kDefaultBaseURL[] =
+    "https://autopush-gsaprototype-pa.sandbox.googleapis.com";
+
+// Default URL string for GetQueryTiles RPC.
+constexpr char kDefaultGetQueryTilePath[] = "/v1/querytiles";
+
+// Default state of QueryTile feature.
+constexpr bool kDefaultQueryTileState = false;
+
+const GURL BuildGetQueryTileURL(const GURL& base_url, const char* path) {
+  GURL::Replacements replacements;
+  replacements.SetPathStr(path);
+  return base_url.ReplaceComponents(replacements);
+}
+
+}  // namespace
+
+std::unique_ptr<QueryTilesConfig> QueryTilesConfig::Create() {
+  return std::make_unique<QueryTilesConfig>();
+}
+
+std::unique_ptr<QueryTilesConfig> QueryTilesConfig::CreateFromFinch() {
+  // TODO(hesen): Implement reading parameters from Finch.
+  return std::make_unique<QueryTilesConfig>();
+}
+
+QueryTilesConfig::QueryTilesConfig()
+    : is_enabled(kDefaultQueryTileState),
+      base_url(GURL(kDefaultBaseURL)),
+      get_query_tile_url(
+          BuildGetQueryTileURL(base_url, kDefaultGetQueryTilePath)) {}
+
+QueryTilesConfig::~QueryTilesConfig() = default;
+
+}  // namespace upboarding

chrome/browser/upboarding/query_tiles/internal/config.h

+// Copyright 2020 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 CHROME_BROWSER_UPBOARDING_QUERY_TILES_INTERNAL_CONFIG_H_
+#define CHROME_BROWSER_UPBOARDING_QUERY_TILES_INTERNAL_CONFIG_H_
+
+#include <memory>
+#include <string>
+#include <utility>
+
+#include "url/gurl.h"
+
+namespace upboarding {
+
+struct QueryTilesConfig {
+  // Creates a default QueryTilesConfig.
+  static std::unique_ptr<QueryTilesConfig> Create();
+
+  // Creates a QueryTilesConfig that reads parameters from Finch.
+  static std::unique_ptr<QueryTilesConfig> CreateFromFinch();
+
+  QueryTilesConfig();
+  ~QueryTilesConfig();
+  QueryTilesConfig(const QueryTilesConfig& other) = delete;
+  QueryTilesConfig& operator=(const QueryTilesConfig& other) = delete;
+
+  // Flag to tell whether query tiles is enabled or not.
+  bool is_enabled;
+
+  // The base URL for the Query Tiles server.
+  GURL base_url;
+
+  // The URL for GetQueryTiles RPC.
+  GURL get_query_tile_url;
+};
+
+}  // namespace upboarding
+
+#endif  // CHROME_BROWSER_UPBOARDING_QUERY_TILES_INTERNAL_CONFIG_H_