Implement GLX for Ozone X11.

content/gpu/gpu_main.cc

Index: content/gpu/gpu_main.cc
diff --git a/content/gpu/gpu_main.cc b/content/gpu/gpu_main.cc
index 3dfba0cc5307e0822001e879c1406de1e21f4955..079258888ca2aa0634f707a6d2a7e612c8564ae1 100644
--- a/content/gpu/gpu_main.cc
+++ b/content/gpu/gpu_main.cc
@@ -191,6 +191,9 @@ int GpuMain(const MainFunctionParams& parameters) {
   base::MessageLoop main_message_loop(base::MessageLoop::TYPE_UI);
   std::unique_ptr<ui::PlatformEventSource> event_source =
       ui::PlatformEventSource::CreateDefault();
+#elif defined(OS_LINUX) && defined(USE_OZONE)

[sadrul, 2016/04/19 14:49:49]

Do you need defined(OS_LINUX) here?

[kylechar, 2016/04/19 16:00:20]

Umm. I'm not actually sure. I don't think think it's necessary but did it like
that because the one above is similar (#elif defined(OS_LINUX) &&
defined(USE_X11)). I'm wondering if there is a reason for the defined(OS_LINUX)
there?

I've removed it from here. I don't think that will be an issue.

+  // 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)