File, Search intermittent exception

[GoogleCodeExporter]

What steps will reproduce the problem?
1. "run win64 Debug detailed"
2. Wait for it to come up and display the Google search page.
3. Select File, Search

What is the expected output? What do you see instead?
The Search dialog to be displayed.

Exception:
[0312/151821:ERROR:singleton_hwnd.cc(43)] Cannot create windows on non-UI 
thread!
[0312/151833:ERROR:render_process_impl.cc(68)] WebFrame LEAKED 1 TIMES
[0312/151833:FATAL:v8_impl.cc(81)] Check failed: context_map_.empty(). 
Backtrace:
    cef_trace_event_instant [0x0000000180721096+1889478]
    cef_trace_event_instant [0x000000018062421D+853581]
    cef_string_list_value [0x000000018030EF52+31938]
    cef_string_list_value [0x00000001803127FC+46444]
    cef_string_list_value [0x0000000180317BD1+67905]
    cef_string_list_value [0x0000000180314AA9+55321]
    cef_time_to_timet [0x00000001804036C3+151539]
    cef_time_to_timet [0x00000001804EBA8B+1102779]
    SetCrashKeyValueImpl [0x0000000184D5CCE3+29417555]
    SetCrashKeyValueImpl [0x0000000185216F16+34374278]
    IsSandboxedProcess [0x000000018798F557+9481047]
    IsSandboxedProcess [0x000000018798F67F+9481343]
    IsSandboxedProcess [0x000000018798F0A6+9479846]
    SetCrashKeyValueImpl [0x0000000185AA8505+43358325]
    SetCrashKeyValueImpl [0x0000000185AA83C4+43358004]
    SetCrashKeyValueImpl [0x0000000185AA6446+43349942]
    cef_string_list_value [0x000000018033DCF7+223847]
    cef_execute_process [0x000000018025B142+322]
    CefExecuteProcess [0x000000013FC66DAF+383] (c:\svn_root\jcefcustom\trunk\src\third_party\cef\win64\libcef_dll\wrapper\libcef_dll_wrapper.cc:135)
    WinMain [0x000000013FC432BA+202] (c:\svn_root\jcefcustom\trunk\src\native\jcef_helper.cpp:162)
    __tmainCRTStartup [0x000000013FD2FCF7+295] (f:\dd\vctools\crt_bld\self_64_amd64\crt\src\crt0.c:275)
    WinMainCRTStartup [0x000000013FD2FBBE+14] (f:\dd\vctools\crt_bld\self_64_amd64\crt\src\crt0.c:189)
    BaseThreadInitThunk [0x00000000773B59ED+13]
    RtlUserThreadStart [0x00000000775EC541+33]

What version of the product are you using? On what operating system?
Fresh check-out and clean build of 3.2171.1902.115 with exact-match CEF build 
from cefbuilds.com.

On Windows 7 Pro both 32-bit and 64-bit in VMware VMs; Visual Studio Pro 2010; 
Java 7u71.

Please provide any additional information below.
Sometimes it works. But after 2-5 fresh starts and trying it immediately it 
throws the exception.

Original issue reported on code.google.com by rockney8...@gmail.com on 12 Mar 2015 at 9:20