[tracing] Sanitize process memory dumps for background mode

skia/ext/skia_memory_dump_provider_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 "skia/ext/skia_memory_dump_provider.h"
 
 #include <memory>
 
 #include "base/trace_event/process_memory_dump.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace skia {
 
 // Tests if the skia dump provider dumps without crashing.
 TEST(SkiaMemoryDumpProviderTest, OnMemoryDump) {
-  std::unique_ptr<base::trace_event::ProcessMemoryDump> process_memory_dump(
-      new base::trace_event::ProcessMemoryDump(nullptr));
   base::trace_event::MemoryDumpArgs dump_args = {
       base::trace_event::MemoryDumpLevelOfDetail::DETAILED};
+  std::unique_ptr<base::trace_event::ProcessMemoryDump> process_memory_dump(
+      new base::trace_event::ProcessMemoryDump(nullptr, dump_args));
   SkiaMemoryDumpProvider::GetInstance()->OnMemoryDump(
       dump_args, process_memory_dump.get());
 
   ASSERT_TRUE(process_memory_dump->GetAllocatorDump("skia/sk_glyph_cache"));
 }
 
 }  // namespace skia