Implement GLX for Ozone X11.

content/gpu/gpu_main.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <stddef.h>
 #include <stdlib.h>
 
 #include <memory>
 #include <utility>
 
@@ skipping 173 matching lines @@
 #if defined(OS_WIN)
   // Use a UI message loop because ANGLE and the desktop GL platform can
   // create child windows to render to.
   base::MessageLoop main_message_loop(base::MessageLoop::TYPE_UI);
 #elif defined(OS_LINUX) && defined(USE_X11)
   // We need a UI loop so that we can grab the Expose events. See GLSurfaceGLX
   // and https://crbug.com/326995.
   base::MessageLoop main_message_loop(base::MessageLoop::TYPE_UI);
   std::unique_ptr<ui::PlatformEventSource> event_source =
       ui::PlatformEventSource::CreateDefault();
+#elif defined(USE_OZONE)
+  // Ozone X11 needs a UI loop to grab Expose events. https://crbug.com/326995
+  base::MessageLoop main_message_loop(base::MessageLoop::TYPE_UI);
 #elif defined(OS_LINUX)
   base::MessageLoop main_message_loop(base::MessageLoop::TYPE_DEFAULT);
 #elif defined(OS_MACOSX)
   // This is necessary for CoreAnimation layers hosted in the GPU process to be
   // drawn. See http://crbug.com/312462.
   std::unique_ptr<base::MessagePump> pump(new base::MessagePumpCFRunLoop());
   base::MessageLoop main_message_loop(std::move(pump));
 #else
   base::MessageLoop main_message_loop(base::MessageLoop::TYPE_IO);
 #endif
@@ skipping 377 matching lines @@
     return true;
   }
 
   return false;
 }
 #endif  // defined(OS_WIN)
 
 }  // namespace.
 
 }  // namespace content