Use a direct include of the message_loop header in content/, part 3.

BUG=260807
TEST=none
[email protected]

Review URL: https://chromiumcodereview.appspot.com/19463008

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@212187 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/content/ppapi_plugin/ppapi_broker_main.cc b/content/ppapi_plugin/ppapi_broker_main.cc
index 3c467a3..b300c0ff 100644
--- a/content/ppapi_plugin/ppapi_broker_main.cc
+++ b/content/ppapi_plugin/ppapi_broker_main.cc
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "base/message_loop.h"
+#include "base/message_loop/message_loop.h"
 #include "base/threading/platform_thread.h"
 #include "build/build_config.h"
 #include "content/child/child_process.h"