Fix gpu_ipc_service_unittests on mac_chromium_rel_ng by managing GL shared groups the same way in s…

ui/gl/gl_context_android.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 "ui/gl/gl_context.h"
 
 #include "base/logging.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/sys_info.h"
@@ skipping 60 matching lines @@
 }  // anonymous namespace
 
 // static
 scoped_refptr<GLContext> GLContext::CreateGLContext(
     GLShareGroup* share_group,
     GLSurface* compatible_surface,
     GpuPreference gpu_preference) {
   scoped_refptr<GLContext> context;
   switch (GetGLImplementation()) {
     case kGLImplementationMockGL:
-      return scoped_refptr<GLContext>(new GLContextStub());
+      return scoped_refptr<GLContext>(new GLContextStub(share_group));
     case kGLImplementationOSMesaGL:
       context = new GLContextOSMesa(share_group);
       break;
     default:
       if (compatible_surface->GetHandle())
         context = new GLContextEGL(share_group);
       else
         context = new GLNonOwnedContext(share_group);
       break;
   }
 
   if (!context->Initialize(compatible_surface, gpu_preference))
     return nullptr;
 
   return context;
 }
 
 }