Move Ozone GPU initialization.

ui/gl/init/gl_factory_ozone.cc

 // Copyright 2016 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 "ui/gl/init/gl_factory.h"
 
 #include "base/logging.h"
 #include "base/trace_event/trace_event.h"
 #include "ui/gl/gl_context.h"
 #include "ui/gl/gl_context_stub.h"
 #include "ui/gl/gl_implementation.h"
 #include "ui/gl/gl_share_group.h"
 #include "ui/gl/gl_surface.h"
 #include "ui/gl/gl_surface_stub.h"
 #include "ui/gl/init/ozone_util.h"
 
 namespace gl {
 namespace init {
 
 std::vector<GLImplementation> GetAllowedGLImplementations() {
-  ui::OzonePlatform::InitializeForGPU();
+  DCHECK(GetSurfaceFactoryOzone());
   return GetSurfaceFactoryOzone()->GetAllowedGLImplementations();
 }
 
 bool GetGLWindowSystemBindingInfo(GLWindowSystemBindingInfo* info) {
   if (HasGLOzone())
     return GetGLOzone()->GetGLWindowSystemBindingInfo(info);
 
   return false;
 }
 
@@ skipping 67 matching lines @@
       return InitializeGLSurface(new GLSurfaceStub);
     default:
       NOTREACHED();
   }
 
   return nullptr;
 }
 
 }  // namespace init
 }  // namespace gl