Make the GPU process use an X11 event loop

base/message_loop/message_loop.cc

Index: base/message_loop/message_loop.cc
diff --git a/base/message_loop/message_loop.cc b/base/message_loop/message_loop.cc
index 92039e237b885fbdadde39d3269554127a73df9d..196ae56a540174659ebb82ec886d06d24167422b 100644
--- a/base/message_loop/message_loop.cc
+++ b/base/message_loop/message_loop.cc
@@ -32,6 +32,9 @@
 #if defined(OS_ANDROID)
 #include "base/message_loop/message_pump_android.h"
 #endif
+#if defined(OS_LINUX)
+#include "base/message_loop/message_pump_x11.h"
+#endif
 
 #if defined(TOOLKIT_GTK)
 #include <gdk/gdk.h>
@@ -184,6 +187,10 @@ MessageLoop::MessageLoop(Type type)
       pump_.reset(MESSAGE_PUMP_UI);
   } else if (type_ == TYPE_IO) {
     pump_.reset(MESSAGE_PUMP_IO);
+#if defined(OS_LINUX)
+  } else if (type_ == TYPE_GPU) {
+    pump_.reset(new MessagePumpX11());
+#endif
 #if defined(OS_ANDROID)
   } else if (type_ == TYPE_JAVA) {
     pump_.reset(MESSAGE_PUMP_UI);