IME not work after close a browser

I use my own window as the parent of a browser window(which named 
"CefBrowserWindow"), in order to customize the outter window style. In some 
context, the IME will not work, the steps like this:

1. A page opened in a window A. (Now, IME is ok)
2. Click a link in window A, and open this url in a window B(my own window as 
the browser window parent)
3. Close window B(Before close, i called CefBrowser::CloseBrowser())
4. Now IME can not work in window A (the IME window can not appear whatever)

(If i don't call CefBrowser::CloseBrowser() in step3, IME has no problem. So i 
guess this call for window B does some bad effort on window A, but i can not 
find out after I debug the cef code)

What version of the product are you using? On what operating system?

cef1 1.1364.1123 + os win7

Please provide any additional information below.

I did not use cef3, so don't know if cef3 has this issue.
I have struggled 2 weeks on this issue.
Thank you.

Original issue reported on code.google.com by songer...@gmail.com on 10 Feb 2015 at 4:20

roadlabs / chromiumembedded

IME not work after close a browser #1528