Update gtest to 786564fa4a3c, switch to googlemock in gtest

base/trace_event/heap_profiler_stack_frame_deduplicator_unittest.cc

 // Copyright 2015 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/trace_event/heap_profiler_allocation_context.h"
 #include "base/trace_event/heap_profiler_stack_frame_deduplicator.h"
-#include "testing/gtest/include/gtest/gtest.h"
+#include "testing/gtest/googletest/include/gtest/gtest.h"
 
 namespace base {
 namespace trace_event {
 
 // Define all strings once, because the deduplicator requires pointer equality,
 // and string interning is unreliable.
 const char kBrowserMain[] = "BrowserMain";
 const char kRendererMain[] = "RendererMain";
 const char kCreateWidget[] = "CreateWidget";
 const char kInitialize[] = "Initialize";
@@ skipping 94 matching lines @@
 
   // Inserting the same backtrace again should return the index of the existing
   // node.
   ASSERT_EQ(1, dedup->Insert(bt0));
   ASSERT_EQ(2, dedup->Insert(bt1));
   ASSERT_EQ(dedup->begin() + 3, dedup->end());
 }
 
 }  // namespace trace_event
 }  // namespace base