Fix browser tests on Mac

headless/public/headless_browser.cc

 // Copyright 2015 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 "headless/public/headless_browser.h"
 
 #include <utility>
 
 #include "content/public/common/user_agent.h"
 #include "headless/public/version.h"
@@ skipping 12 matching lines @@
   return std::string(kProductName) + "/" + PRODUCT_VERSION;
 }
 }  // namespace
 
 Options::Options(int argc, const char** argv)
     : argc(argc),
       argv(argv),
       message_pump(nullptr),
       single_process_mode(false),
       disable_sandbox(false),
+#if !defined(OS_MACOSX)
       gl_implementation("osmesa"),
+#else
+      gl_implementation("any"),
+#endif
       product_name_and_version(GetProductNameAndVersion()),
       user_agent(content::BuildUserAgentFromProduct(product_name_and_version)),
       window_size(kDefaultWindowSize),
       incognito_mode(true),
-      enable_crash_reporter(false) {}
+      enable_crash_reporter(false) {
+}
 
 Options::Options(Options&& options) = default;
 
 Options::~Options() {}
 
 Options& Options::operator=(Options&& options) = default;
 
 Builder::Builder(int argc, const char** argv) : options_(argc, argv) {}
 
 Builder::Builder() : options_(0, nullptr) {}
@@ skipping 80 matching lines @@
 Builder& Builder::SetCrashDumpsDir(const base::FilePath& dir) {
   options_.crash_dumps_dir = dir;
   return *this;
 }
 
 Options Builder::Build() {
   return std::move(options_);
 }
 
 }  // namespace headless