Fix potential threading issues in NetworkChangeNotifierAndroid.

chrome/browser/chrome_browser_main_android.cc

Index: chrome/browser/chrome_browser_main_android.cc
diff --git a/chrome/browser/chrome_browser_main_android.cc b/chrome/browser/chrome_browser_main_android.cc
index d99c140119ddc3fbe21243d2de8fcbfaa9424906..5b7ab0b57204e0ca3f52ff3e5431b809bfe457da 100644
--- a/chrome/browser/chrome_browser_main_android.cc
+++ b/chrome/browser/chrome_browser_main_android.cc
@@ -18,13 +18,14 @@ ChromeBrowserMainPartsAndroid::~ChromeBrowserMainPartsAndroid() {
 }
 
 void ChromeBrowserMainPartsAndroid::PreEarlyInitialization() {
-  net::NetworkChangeNotifier::SetFactory(
-      new net::NetworkChangeNotifierFactoryAndroid());
-
   // Chrome on Android does not use default MessageLoop. It has its own
   // Android specific MessageLoop.
   DCHECK(!main_message_loop_.get());
   main_message_loop_.reset(new MessageLoop(MessageLoop::TYPE_UI));
+  net::NetworkChangeNotifier::SetFactory(
+      new net::NetworkChangeNotifierFactoryAndroid(
+          MessageLoop::current()->message_loop_proxy()));
+
   MessageLoopForUI::current()->Start();
 
   ChromeBrowserMainParts::PreEarlyInitialization();