Fix failure to disable cloud print connector.

Fix issue where a crash in the cloud print connector on shutdown will prevent the enable pref change from being persisted.
Moves the write of the pref to earlier in the shutdown process so that if a crash occurs the pref will still be recorded.

BUG=106919
TEST=Verify 106919


Review URL: http://codereview.chromium.org/8879040

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@113852 0039d316-1c4b-4281-b951-d872f2087c98

chrome/service/cloud_print/cloud_print_proxy.cc

@@ -171,10 +171,10 @@ void CloudPrintProxy::DisableForUser() {
   DCHECK(CalledOnValidThread());
   user_email_.clear();
   enabled_ = false;
-  Shutdown();
   if (client_) {
     client_->OnCloudPrintProxyDisabled(true);
   }
+  Shutdown();
 }
 
 void CloudPrintProxy::GetProxyInfo(cloud_print::CloudPrintProxyInfo* info) {