Add OzoneGLImpl interface.

ui/gl/test/gl_surface_test_support.cc

Index: ui/gl/test/gl_surface_test_support.cc
diff --git a/ui/gl/test/gl_surface_test_support.cc b/ui/gl/test/gl_surface_test_support.cc
index aae8fd79d497a7cdfb111c3d4ef8f5184761b0eb..6bd4fd9c65f81bcbadb89675820b11c7b308f50b 100644
--- a/ui/gl/test/gl_surface_test_support.cc
+++ b/ui/gl/test/gl_surface_test_support.cc
@@ -19,6 +19,10 @@
 #include "ui/platform_window/x11/x11_window.h"
 #endif
 
+#if defined(USE_OZONE)
+#include "ui/ozone/public/ozone_platform.h"
+#endif
+
 namespace gl {
 
 // static
@@ -67,6 +71,11 @@ void GLSurfaceTestSupport::InitializeOneOff() {
 void GLSurfaceTestSupport::InitializeOneOffImplementation(
     GLImplementation impl,
     bool fallback_to_osmesa) {
+#if defined(USE_OZONE)
+  // This function skips where Ozone is otherwise initialized in some tests.
+  ui::OzonePlatform::InitializeForGPU();
+#endif
+
   DCHECK(!base::CommandLine::ForCurrentProcess()->HasSwitch(switches::kUseGL))
       << "kUseGL has not effect in tests";