Moving prepopulated search engines to a JSON file.

chrome/browser/search_engines/prepopulated_engines_schema.json

+// 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.
+
+// This file is used by json_to_struct.py to generate prepopulated_engine.h/cc.
+
+
+{
+  "type_name": "PrepopulatedEngine",
+  "headers": [
+    "chrome/browser/search_engines/search_engine_type.h"
+  ],
+  "schema": [
+    { "field": "name", "type": "string16" },
+    { "field": "keyword", "type" : "string16" },
+    // If omitted, there is no favicon.
+    { "field": "favicon_url", "type" : "string" },
+    { "field": "search_url", "type" : "string" },
+    { "field": "encoding", "type" : "string", "default": "UTF-8" },
+    // If omitted, this engine does not support suggestions.
+    { "field": "suggest_url", "type" : "string" },
+    // If omitted, this engine does not support instant.
+    { "field": "instant_url", "type" : "string" },
+
+    // A list of URL patterns that can be used, in addition to |search_url|,
+    // to extract search terms from a URL.
+    { "field": "alternate_urls", "type": "string" },
+    // Use SEARCH_ENGINE_OTHER if there is no matching type.

[Peter Kasting, 2012/11/09 22:07:23]

Nit: Weird to comment this but not comment the UTF-8 one above.  I'd probably
just remove this.

[beaudoin, 2012/11/10 09:17:54]

Done.

+    {
+      "field": "type",
+      "type": "enum",
+      "ctype": "SearchEngineType",
+      "default": "SEARCH_ENGINE_OTHER"
+    },
+    // Unique id for this prepopulate engine (corresponds to
+    // TemplateURL::prepopulate_id). This ID must be greater than zero and must
+    // remain the same for a particular site regardless of how the url changes;
+    // the ID is used when modifying engine data in subsequent versions, so that
+    // we can find the "old" entry to update even when the name or URL changes.
+    //
+    // This ID must be "unique" within one country's prepopulated data, but two
+    // entries can share an ID if they represent the "same" engine (e.g. Yahoo!
+    // US vs. Yahoo! UK) and will not appear in the same user-visible data set.
+    // This facilitates changes like adding more specific per-country data in
+    // the future; in such a case the localized engines will transparently
+    // replace the previous, non-localized versions.  For engines where we need
+    // two instances to appear for one country (e.g. Bing Search U.S. English
+    // and Spanish), we must use two different unique IDs (and different
+    // keywords).
+    //
+    // See prepopulated_engines.json for the list of available IDs.
+    { "field": "id", "type": "int" }
+  ]
+}