Revert "content: Remove use of MessageLoopProxy and deprecated MessageLoop APIs"

content/browser/geolocation/location_api_adapter_android.h

Index: content/browser/geolocation/location_api_adapter_android.h
diff --git a/content/browser/geolocation/location_api_adapter_android.h b/content/browser/geolocation/location_api_adapter_android.h
index 8cba148ae2cd15ec47e86b6550574493910d99d3..d1d2fa52ee74e21d4c4527c967d44d2c4ef0c426 100644
--- a/content/browser/geolocation/location_api_adapter_android.h
+++ b/content/browser/geolocation/location_api_adapter_android.h
@@ -9,12 +9,9 @@
 #include "base/android/scoped_java_ref.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/singleton.h"
+#include "base/message_loop/message_loop_proxy.h"
 #include "base/synchronization/lock.h"
 
-namespace base {
-class SingleThreadTaskRunner;
-}
-
 namespace content {
 class LocationProviderAndroid;
 struct Geoposition;
@@ -76,7 +73,7 @@ class AndroidLocationApiAdapter {
   // Guards against the following member which is accessed on Geolocation
   // thread and the JNI main thread looper.
   base::Lock lock_;
-  scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
+  scoped_refptr<base::MessageLoopProxy> message_loop_;
 };
 
 }  // namespace content