[Tracing] Make heap profiler type info a string

base/trace_event/winheap_dump_provider_win_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/winheap_dump_provider_win.h"
 
 #include <windows.h>
 
 #include "base/trace_event/memory_dump_session_state.h"
 #include "base/trace_event/process_memory_dump.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace base {
 namespace trace_event {
 
 TEST(WinHeapDumpProviderTest, OnMemoryDump) {
-  ProcessMemoryDump pmd(new MemoryDumpSessionState(nullptr));
+  ProcessMemoryDump pmd(new MemoryDumpSessionState(nullptr, nullptr));
   MemoryDumpArgs dump_args = {MemoryDumpLevelOfDetail::DETAILED};
 
   WinHeapDumpProvider* winheap_dump_provider =
       WinHeapDumpProvider::GetInstance();
   ASSERT_NE(static_cast<WinHeapDumpProvider*>(nullptr), winheap_dump_provider);
 
   ASSERT_NO_FATAL_FAILURE(winheap_dump_provider->OnMemoryDump(dump_args, &pmd));
 }
 
 }  // namespace trace_event
 }  // namespace base