Update gtest to 786564fa4a3c, switch to googlemock in gtest

base/synchronization/lock_unittest.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 "base/synchronization/lock.h"
 
 #include <stdlib.h>
 
 #include "base/compiler_specific.h"
 #include "base/threading/platform_thread.h"
-#include "testing/gtest/include/gtest/gtest.h"
+#include "testing/gtest/googletest/include/gtest/gtest.h"
 
 namespace base {
 
 // Basic test to make sure that Acquire()/Release()/Try() don't crash ----------
 
 class BasicLockTestThread : public PlatformThread::Delegate {
  public:
   explicit BasicLockTestThread(Lock* lock) : lock_(lock), acquired_(0) {}
 
   void ThreadMain() override {
@@ skipping 183 matching lines @@
   MutexLockTestThread::DoStuff(&lock, &value);
 
   PlatformThread::Join(handle1);
   PlatformThread::Join(handle2);
   PlatformThread::Join(handle3);
 
   EXPECT_EQ(4 * 40, value);
 }
 
 }  // namespace base