Update gtest to 786564fa4a3c, switch to googlemock in gtest

base/memory/linked_ptr_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 <string>
 
 #include "base/memory/linked_ptr.h"
 #include "base/strings/stringprintf.h"
-#include "testing/gtest/include/gtest/gtest.h"
+#include "testing/gtest/googletest/include/gtest/gtest.h"
 
 namespace {
 
 int num = 0;
 
 std::string history;
 
 // Class which tracks allocation/deallocation
 struct A {
   A(): mynum(num++) { history += base::StringPrintf("A%d ctor\n", mynum); }
@@ skipping 79 matching lines @@
     "A2 dtor\n"
     "A0 use\n"
     "A0 use\n"
     "A1 use\n"
     "A3 ctor\n"
     "A0 dtor\n"
     "A3 dtor\n"
     "A1 dtor\n"
   );
 }