Revert 255928 "Only notify V8 once per timezone change"

trunk/src/content/renderer/render_view_impl.cc

 // 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.
 
 #include "content/renderer/render_view_impl.h"
 
 #include <algorithm>
 #include <cmath>
 
 #include "base/auto_reset.h"
@@ skipping 361 matching lines @@
 
 // static
 Referrer RenderViewImpl::GetReferrerFromRequest(
     WebFrame* frame,
     const WebURLRequest& request) {
   return Referrer(GURL(request.httpHeaderField(WebString::fromUTF8("Referer"))),
                   request.referrerPolicy());
 }
 
 // static
-void RenderViewImpl::NotifyTimezoneChange() {
+void RenderViewImpl::NotifyTimezoneChange(blink::WebFrame* frame) {
+  v8::HandleScope handle_scope(v8::Isolate::GetCurrent());
+  v8::Context::Scope context_scope(frame->mainWorldScriptContext());
   v8::Date::DateTimeConfigurationChangeNotification(v8::Isolate::GetCurrent());
+  blink::WebFrame* child = frame->firstChild();
+  for (; child; child = child->nextSibling())
+    NotifyTimezoneChange(child);
 }
 
 // static
 WindowOpenDisposition RenderViewImpl::NavigationPolicyToDisposition(
     WebNavigationPolicy policy) {
   switch (policy) {
     case blink::WebNavigationPolicyIgnore:
       return IGNORE_ACTION;
     case blink::WebNavigationPolicyDownload:
       return SAVE_TO_DISK;
@@ skipping 3372 matching lines @@
 void RenderViewImpl::OnDragSourceSystemDragEnded() {
   webview()->dragSourceSystemDragEnded();
 }
 
 void RenderViewImpl::OnUpdateWebPreferences(const WebPreferences& prefs) {
   webkit_preferences_ = prefs;
   ApplyWebPreferences(webkit_preferences_, webview());
 }
 
 void RenderViewImpl::OnUpdateTimezone() {
-  NotifyTimezoneChange();
+  if (webview())
+    NotifyTimezoneChange(webview()->mainFrame());
 }
 
 void RenderViewImpl::OnEnumerateDirectoryResponse(
     int id,
     const std::vector<base::FilePath>& paths) {
   if (!enumeration_completions_[id])
     return;
 
   WebVector<WebString> ws_file_names(paths.size());
   for (size_t i = 0; i < paths.size(); ++i)
@@ skipping 1364 matching lines @@
   for (size_t i = 0; i < icon_urls.size(); i++) {
     WebURL url = icon_urls[i].iconURL();
     if (!url.isEmpty())
       urls.push_back(FaviconURL(url,
                                 ToFaviconType(icon_urls[i].iconType())));
   }
   SendUpdateFaviconURL(urls);
 }
 
 }  // namespace content