1 files changed, 67 insertions, 0 deletions
diff --git a/chromium/third_party/blink/renderer/core/inspector/locale_controller.cc b/chromium/third_party/blink/renderer/core/inspector/locale_controller.cc
new file mode 100644
index 00000000000..5e26a092405
--- /dev/null
+++ b/chromium/third_party/blink/renderer/core/inspector/locale_controller.cc
@@ -0,0 +1,67 @@
+// 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 "third_party/blink/renderer/core/inspector/locale_controller.h"
+
+#include "base/i18n/rtl.h"
+#include "third_party/blink/renderer/core/workers/worker_or_worklet_global_scope.h"
+#include "third_party/blink/renderer/core/workers/worker_thread.h"
+#include "third_party/blink/renderer/platform/bindings/v8_per_isolate_data.h"
+#include "third_party/blink/renderer/platform/wtf/std_lib_extras.h"
+#include "third_party/icu/source/common/unicode/locid.h"
+#include "v8/include/v8.h"
+
+namespace blink {
+
+namespace {
+void UpdateDefaultLocaleInIsolate(v8::Isolate* isolate) {
+  DCHECK(isolate);
+  isolate->LocaleConfigurationChangeNotification();
+  isolate->DateTimeConfigurationChangeNotification();
+}
+
+void NotifyLocaleChangeOnWorkerThread(WorkerThread* worker_thread) {
+  DCHECK(worker_thread->IsCurrentThread());
+  UpdateDefaultLocaleInIsolate(worker_thread->GlobalScope()->GetIsolate());
+}
+
+void UpdateLocale(const String& locale) {
+  WebString web_locale(locale);
+  base::i18n::SetICUDefaultLocale(web_locale.Ascii());
+  UpdateDefaultLocaleInIsolate(V8PerIsolateData::MainThreadIsolate());
+  WorkerThread::CallOnAllWorkerThreads(&NotifyLocaleChangeOnWorkerThread,
+                                       TaskType::kInternalDefault);
+}
+}  // namespace
+
+LocaleController::LocaleController()
+    : embedder_locale_(String(icu::Locale::getDefault().getName())) {}
+
+String LocaleController::SetLocaleOverride(const String& locale) {
+  if (locale_override_ == locale)
+    return String();
+  if (locale.IsEmpty()) {
+    UpdateLocale(embedder_locale_);
+  } else {
+    icu::Locale locale_object(locale.Ascii().data());
+    const char* lang = locale_object.getLanguage();
+    if (!lang || *lang == '\0')
+      return "Invalid locale name";
+    UpdateLocale(locale);
+  }
+  locale_override_ = locale;
+  return String();
+}
+
+bool LocaleController::has_locale_override() const {
+  return !locale_override_.IsEmpty();
+}
+
+// static
+LocaleController& LocaleController::instance() {
+  DEFINE_STATIC_LOCAL(LocaleController, instance, ());
+  return instance;
+}
+
+}  // namespace blink