Enable Chrome to tweak search engines for some locales

chrome/browser/android/locale/special_locale_handler.h

+// Copyright (c) 2016 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_ANDROID_LOCALE_SPECIAL_LOCALE_HANDLER_H_
+#define CHROME_BROWSER_ANDROID_LOCALE_SPECIAL_LOCALE_HANDLER_H_
+
+#include <jni.h>
+
+#include "base/android/scoped_java_ref.h"
+#include "base/macros.h"
+#include "components/search_engines/template_url.h"
+
+using base::android::JavaParamRef;
+
+class TemplateURLService;
+
+class SpecialLocaleHandler {
+ public:
+  explicit SpecialLocaleHandler(const std::string& locale);
+  void Destroy(JNIEnv* env, const JavaParamRef<jobject>& obj);
+  jboolean LoadTemplateUrls(JNIEnv* env, const JavaParamRef<jobject>& obj);
+  void RemoveTemplateUrls(JNIEnv* env, const JavaParamRef<jobject>& obj);
+  void OverrideDefaultSearchProvider(JNIEnv* env,
+                                     const JavaParamRef<jobject>& obj);
+
+ private:
+  virtual ~SpecialLocaleHandler();
+
+  std::string locale_;
+
+  // Tracks all local search engines that were added to TURL service.
+  std::vector<int> prepopulate_ids_;
+
+  // Pointer to the TemplateUrlService for the main profile.
+  TemplateURLService* template_url_service_;
+
+  DISALLOW_COPY_AND_ASSIGN(SpecialLocaleHandler);
+};
+
+bool RegisterSpecialLocaleHandler(JNIEnv* env);
+
+#endif  // CHROME_BROWSER_ANDROID_LOCALE_SPECIAL_LOCALE_HANDLER_H_