Used use-gl=any instead of forcing osmesa for UI tests.

chrome/test/gpu/webgl_conformance_tests.cc

 // Copyright (c) 2011 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/file_util.h"
 #include "base/path_service.h"
 #include "base/test/test_timeouts.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/common/chrome_paths.h"
 #include "chrome/test/automation/tab_proxy.h"
 #include "chrome/test/ui/javascript_test_util.h"
 #include "chrome/test/ui/ui_test.h"
 #include "content/public/common/content_switches.h"
 #include "net/base/net_util.h"
 
 namespace {
 
 class WebGLConformanceTests : public UITest {
  public:
   WebGLConformanceTests() {
     show_window_ = true;
     dom_automation_enabled_ = true;
   }
 
   void SetUp() {
-    // Force the use of GPU hardware.
-    force_use_osmesa_ = false;
-
     // Ensure that a GPU bot is never blacklisted.
     launch_arguments_.AppendSwitch(switches::kIgnoreGpuBlacklist);
     UITest::SetUp();
   }
 
   void RunTest(const std::string& url) {
     FilePath webgl_conformance_path;
     PathService::Get(base::DIR_SOURCE_ROOT, &webgl_conformance_path);
     webgl_conformance_path = webgl_conformance_path.Append(
         FILE_PATH_LITERAL("third_party"));
@@ skipping 40 matching lines @@
 TEST_F(WebGLConformanceTests, name) { \
   RunTest(url); \
 }
 
 // The test declarations are located in webgl_conformance_test_list_autogen.h,
 // because the list is automatically generated by a script.
 // See: generate_webgl_conformance_test_list.py
 #include "webgl_conformance_test_list_autogen.h"
 
 }  // namespace