Update gtest to 786564fa4a3c, switch to googlemock in gtest

base/callback_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/bind.h"
 #include "base/callback.h"
 #include "base/callback_helpers.h"
 #include "base/callback_internal.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
-#include "testing/gtest/include/gtest/gtest.h"
+#include "testing/gtest/googletest/include/gtest/gtest.h"
 
 namespace base {
 
 namespace {
 
 struct FakeInvoker {
   typedef void(RunType)(internal::BindStateBase*);
   static void Run(internal::BindStateBase*) {
   }
 };
@@ skipping 161 matching lines @@
 
 TEST_F(CallbackTest, CallbackHasLastRefOnContainingObject) {
   bool deleted = false;
   CallbackOwner* owner = new CallbackOwner(&deleted);
   owner->Reset();
   ASSERT_TRUE(deleted);
 }
 
 }  // namespace
 }  // namespace base