Fix OSK flickering issue

content/renderer/render_widget.cc

Index: content/renderer/render_widget.cc
diff --git a/content/renderer/render_widget.cc b/content/renderer/render_widget.cc
index 1d4293daa3c4da334bfc72bc3ed21a1ea4e676f2..fb0fc2d0926fa5f89c40765f40b5894c0f53f228 100644
--- a/content/renderer/render_widget.cc
+++ b/content/renderer/render_widget.cc
@@ -1890,13 +1890,28 @@ void RenderWidget::UpdateTextInputState(ShowIme show_ime,
   TRACE_EVENT0("renderer", "RenderWidget::UpdateTextInputState");
   if (handling_ime_event_)
     return;
-  ui::TextInputType new_type = GetTextInputType();
-  if (IsDateTimeInput(new_type))
-    return;  // Not considered as a text input field in WebKit/Chromium.
 
+#if defined(OS_ANDROID)

[aelias_OOO_until_Jul13, 2015/10/15 19:58:40]

I don't think we should make this kind of change behind a platform branch, it
makes the flow too hard to reason about.  Let's try to ship the task posting
approach on all platforms.

[Changwan Ryu, 2015/10/16 02:10:16]

Done.

+  // We could be called in the middle of focus change, or in some other
+  // intermediary state.
+  base::ThreadTaskRunnerHandle::Get()->PostTask(
+      FROM_HERE, base::Bind(&RenderWidget::UpdateTextInputStateInternal, this,
+                            show_ime, change_source));
+#else
+  UpdateTextInputStateInternal(show_ime, change_source);
+#endif  // defined(OS_ANDROID)
+}
+
+void RenderWidget::UpdateTextInputStateInternal(ShowIme show_ime,
+                                                ChangeSource change_source) {
   blink::WebTextInputInfo new_info;
   if (webwidget_)
     new_info = webwidget_->textInputInfo();
+
+  ui::TextInputType new_type = WebKitToUiTextInputType(new_info.type);
+  if (IsDateTimeInput(new_type))
+    return;  // Not considered as a text input field in WebKit/Chromium.
+
   const ui::TextInputMode new_mode = ConvertInputMode(new_info.inputMode);
 
   bool new_can_compose_inline = CanComposeInline();