[tracing] Switch to new heap dump format.

base/trace_event/heap_profiler_heap_dump_writer_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/trace_event/heap_profiler_heap_dump_writer.h"
 
 #include <stddef.h>
 
 #include <memory>
 #include <set>
 #include <string>
 
 #include "base/json/json_reader.h"
 #include "base/macros.h"
 #include "base/memory/ptr_util.h"
 #include "base/trace_event/heap_profiler_allocation_context.h"
 #include "base/trace_event/heap_profiler_stack_frame_deduplicator.h"
 #include "base/trace_event/heap_profiler_type_name_deduplicator.h"
 #include "base/trace_event/memory_dump_session_state.h"
 #include "base/trace_event/trace_event_argument.h"
 #include "base/values.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
+#if 0
 namespace {
 
 using base::trace_event::StackFrame;
 
 // Define all strings once, because the deduplicator requires pointer equality,
 // and string interning is unreliable.
 StackFrame kBrowserMain = StackFrame::FromTraceEventName("BrowserMain");
 StackFrame kRendererMain = StackFrame::FromTraceEventName("RendererMain");
 StackFrame kCreateWidget = StackFrame::FromTraceEventName("CreateWidget");
 StackFrame kInitialize = StackFrame::FromTraceEventName("Initialize");
@@ skipping 290 matching lines @@
                        {1024 * 1024 + 400 + 512, 3});
   AssertSizeAndCountEq(dump, bt_browser_main, -1, {1024 * 1024 + 400 + 512, 3});
 
   // Initialize was not significant, it should not have been dumped.
   AssertNotDumped(dump, bt_initialize, -1);
 }
 
 }  // namespace internal
 }  // namespace trace_event
 }  // namespace base
+#endif