Update gtest to 786564fa4a3c, switch to googlemock in gtest

base/json/json_writer_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/json/json_writer.h"
 #include "base/values.h"
-#include "testing/gtest/include/gtest/gtest.h"
+#include "testing/gtest/googletest/include/gtest/gtest.h"
 
 namespace base {
 
 TEST(JSONWriterTest, BasicTypes) {
   std::string output_js;
 
   // Test null.
   EXPECT_TRUE(JSONWriter::Write(*Value::CreateNullValue(), &output_js));
   EXPECT_EQ("null", output_js);
 
@@ skipping 127 matching lines @@
 
   // Test allowing a double with no fractional part to be written as an integer.
   FundamentalValue double_value(1e10);
   EXPECT_TRUE(JSONWriter::WriteWithOptions(
       double_value, JSONWriter::OPTIONS_OMIT_DOUBLE_TYPE_PRESERVATION,
       &output_js));
   EXPECT_EQ("10000000000", output_js);
 }
 
 }  // namespace base