Update gtest to 786564fa4a3c, switch to googlemock in gtest

base/test/opaque_ref_counted.cc

 // Copyright 2014 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/test/opaque_ref_counted.h"
 
 #include "base/macros.h"
-#include "testing/gtest/include/gtest/gtest.h"
+#include "testing/gtest/googletest/include/gtest/gtest.h"
 
 namespace base {
 
 class OpaqueRefCounted : public RefCounted<OpaqueRefCounted> {
  public:
   OpaqueRefCounted() {}
 
   int Return42() { return 42; }
 
  private:
   virtual ~OpaqueRefCounted() {}
 
   friend RefCounted<OpaqueRefCounted>;
   DISALLOW_COPY_AND_ASSIGN(OpaqueRefCounted);
 };
 
 scoped_refptr<OpaqueRefCounted> MakeOpaqueRefCounted() {
   return new OpaqueRefCounted();
 }
 
 void TestOpaqueRefCounted(scoped_refptr<OpaqueRefCounted> p) {
   EXPECT_EQ(42, p->Return42());
 }
 
 }  // namespace base
 
 template class scoped_refptr<base::OpaqueRefCounted>;