Update gtest to 786564fa4a3c, switch to googlemock in gtest

base/memory/ref_counted_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/memory/ref_counted.h"
 
 #include "base/test/opaque_ref_counted.h"
-#include "testing/gtest/include/gtest/gtest.h"
+#include "testing/gtest/googletest/include/gtest/gtest.h"
 
 namespace {
 
 class SelfAssign : public base::RefCounted<SelfAssign> {
  protected:
   virtual ~SelfAssign() {}
 
  private:
   friend class base::RefCounted<SelfAssign>;
 };
@@ skipping 434 matching lines @@
     EXPECT_EQ(1, ScopedRefPtrCountDerived::destructor_count());
 
     // p1 goes out of scope.
   }
   EXPECT_EQ(1, ScopedRefPtrCountBase::constructor_count());
   EXPECT_EQ(1, ScopedRefPtrCountBase::destructor_count());
   EXPECT_EQ(1, ScopedRefPtrCountDerived::constructor_count());
   EXPECT_EQ(1, ScopedRefPtrCountDerived::destructor_count());
 }