Remove calls to deprecated MessageLoop methods in ipc.

ipc/ipc_channel_unittest.cc

Index: ipc/ipc_channel_unittest.cc
diff --git a/ipc/ipc_channel_unittest.cc b/ipc/ipc_channel_unittest.cc
index e423b896475b78b08255ded8d715a4c779a41522..f5ee2061006427f30cd8cc0283e2277f0a30aa2a 100644
--- a/ipc/ipc_channel_unittest.cc
+++ b/ipc/ipc_channel_unittest.cc
@@ -14,6 +14,7 @@
 #include <string>
 
 #include "base/pickle.h"
+#include "base/run_loop.h"
 #include "base/strings/string16.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/threading/thread.h"
@@ -38,7 +39,7 @@ TEST_F(IPCChannelTest, ChannelTest) {
   IPC::TestChannelListener::SendOneMessage(sender(), "hello from parent");
 
   // Run message loop.
-  base::MessageLoop::current()->Run();
+  base::RunLoop().Run();
 
   // Close the channel so the client's OnChannelError() gets fired.
   channel()->Close();
@@ -105,7 +106,7 @@ TEST_F(IPCChannelTest, ChannelProxyTest) {
   IPC::TestChannelListener::SendOneMessage(sender(), "hello from parent");
 
   // Run message loop.
-  base::MessageLoop::current()->Run();
+  base::RunLoop().Run();
 
   EXPECT_TRUE(WaitForClientShutdown());
 
@@ -145,7 +146,7 @@ TEST_F(IPCChannelTest, MAYBE_SendMessageInChannelConnected) {
   IPC::TestChannelListener::SendOneMessage(sender(), "hello from parent");
 
   // Run message loop.
-  base::MessageLoop::current()->Run();
+  base::RunLoop().Run();
 
   // Close the channel so the client's OnChannelError() gets fired.
   channel()->Close();
@@ -165,7 +166,7 @@ MULTIPROCESS_IPC_TEST_CLIENT_MAIN(GenericClient) {
   listener.Init(channel.get());
   IPC::TestChannelListener::SendOneMessage(channel.get(), "hello from child");
 
-  base::MessageLoop::current()->Run();
+  base::RunLoop().Run();
   return 0;
 }