Merge revision 449-452 changes:

- Linux: Fix window destruction crash.
- Linux: Fix cefclient shutdown crash.
- Remove WebURLRequestTest.CANCEL test with WUR_STATE_LOADING due to flakiness.
- Linux: Initialize the 'proxy_type' variable to make the compiler happy.

git-svn-id: https://chromiumembedded.googlecode.com/svn/branches/963@454 5089003a-bbd8-11dd-ad1f-f1f9622dbc98

tests/cefclient/cefclient_gtk.cpp

@@ -20,8 +20,7 @@ char szWorkingDir[512]; // The current working directory
 extern CefRefPtr<ClientHandler> g_handler;
 
 void destroy(void) {
-  CefShutdown();
-  exit(0);
+  CefQuitMessageLoop();
 }
 
 void TerminationSignalHandler(int signatl) {
@@ -421,6 +420,8 @@ int main(int argc, char *argv[]) {
 
   CefRunMessageLoop();
 
+  CefShutdown();
+
   return 0;
 }