[tracing] Sanitize process memory dumps for background mode

third_party/WebKit/Source/platform/web_process_memory_dump_impl.cc

Index: third_party/WebKit/Source/platform/web_process_memory_dump_impl.cc
diff --git a/third_party/WebKit/Source/platform/web_process_memory_dump_impl.cc b/third_party/WebKit/Source/platform/web_process_memory_dump_impl.cc
index e53e15bc050caac30b14981069ce4ded3aa75ffb..0ef03442278aa3889ba6c0dbc00d719de8f6b368 100644
--- a/third_party/WebKit/Source/platform/web_process_memory_dump_impl.cc
+++ b/third_party/WebKit/Source/platform/web_process_memory_dump_impl.cc
@@ -20,9 +20,10 @@ namespace blink {
 
 WebProcessMemoryDumpImpl::WebProcessMemoryDumpImpl()
     : owned_process_memory_dump_(
-          new base::trace_event::ProcessMemoryDump(nullptr)),
-      process_memory_dump_(owned_process_memory_dump_.get()),
-      level_of_detail_(base::trace_event::MemoryDumpLevelOfDetail::DETAILED) {}
+          new base::trace_event::ProcessMemoryDump(nullptr, base::trace_event::MemoryDumpLevelOfDetail::DETAILED))
+    , process_memory_dump_(owned_process_memory_dump_.get())
+    , level_of_detail_(base::trace_event::MemoryDumpLevelOfDetail::DETAILED) {
+}
 
 WebProcessMemoryDumpImpl::WebProcessMemoryDumpImpl(
     base::trace_event::MemoryDumpLevelOfDetail level_of_detail,