X11: Use better visuals for OpenGL

ui/base/x/x11_util_unittest.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 "base/environment.h"
-#include "testing/gtest/include/gtest/gtest.h"
-#include "ui/base/x/x11_util_internal.h"
-#include "ui/gfx/x/x11_types.h"
-
-namespace ui {
-
-class X11UtilTest : public testing::Test {
- public:
-  X11UtilTest() {}
-  ~X11UtilTest() override {}
-};
-
-TEST_F(X11UtilTest, ChooseVisualForWindow) {
-  XDisplay* display = gfx::GetXDisplay();
-  XWindowAttributes attribs;
-  Window root = XDefaultRootWindow(display);
-  Status status = XGetWindowAttributes(display, root, &attribs);
-  DCHECK_NE(0, status);
-
-  int depth = 0;
-  bool has_compositing_manager = false;
-  ui::ChooseVisualForWindow(has_compositing_manager, nullptr, &depth);
-  EXPECT_EQ(attribs.depth, depth);
-
-  // Setting to true has no effect because it has been called with false before.
-  has_compositing_manager = true;
-  ui::ChooseVisualForWindow(has_compositing_manager, nullptr, &depth);
-  EXPECT_EQ(attribs.depth, depth);
-}
-
-}  // namespace ui