[jingle] Replace MessageLoopProxy usage with ThreadTaskRunnerHandle

jingle/glue/proxy_resolving_client_socket_unittest.cc

Index: jingle/glue/proxy_resolving_client_socket_unittest.cc
diff --git a/jingle/glue/proxy_resolving_client_socket_unittest.cc b/jingle/glue/proxy_resolving_client_socket_unittest.cc
index 41c01d221b8593d64fa39ad3858dae2c5bd1775f..7ec3716e29724426b769c75e57ade2620772407b 100644
--- a/jingle/glue/proxy_resolving_client_socket_unittest.cc
+++ b/jingle/glue/proxy_resolving_client_socket_unittest.cc
@@ -7,6 +7,7 @@
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/message_loop/message_loop.h"
+#include "base/thread_task_runner_handle.h"
 #include "net/base/test_completion_callback.h"
 #include "net/dns/mock_host_resolver.h"
 #include "net/proxy/proxy_service.h"
@@ -36,7 +37,7 @@ class ProxyResolvingClientSocketTest : public testing::Test {
  protected:
   ProxyResolvingClientSocketTest()
       : url_request_context_getter_(new net::TestURLRequestContextGetter(
-            base::MessageLoopProxy::current(),
+            base::ThreadTaskRunnerHandle::Get(),
             scoped_ptr<net::TestURLRequestContext>(
                 new MyTestURLRequestContext))) {}