Revert 255928 "Only notify V8 once per timezone change"

trunk/src/content/renderer/render_view_impl.cc

Index: trunk/src/content/renderer/render_view_impl.cc
===================================================================
--- trunk/src/content/renderer/render_view_impl.cc	(revision 255938)
+++ trunk/src/content/renderer/render_view_impl.cc	(working copy)
@@ -379,8 +379,13 @@
 }
 
 // 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
@@ -3773,7 +3778,8 @@
 }
 
 void RenderViewImpl::OnUpdateTimezone() {
-  NotifyTimezoneChange();
+  if (webview())
+    NotifyTimezoneChange(webview()->mainFrame());
 }
 
 void RenderViewImpl::OnEnumerateDirectoryResponse(