[tracing] Whitelist sync MDP.

base/trace_event/memory_infra_background_whitelist.cc

 // Copyright 2016 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/memory_infra_background_whitelist.h"
 
 #include <ctype.h>
 #include <string.h>
 
 #include <string>
@@ skipping 16 matching lines @@
     "LevelDB",
     "LeveldbValueStore",
     "Malloc",
     "MemoryCache",
     "PartitionAlloc",
     "ProcessMemoryMetrics",
     "Skia",
     "Sql",
     "V8Isolate",
     "WinHeap",
+    "SyncDirectory",
     nullptr  // End of list marker.
 };
 
 // A list of string names that are allowed for the memory allocator dumps in
 // background mode.
 const char* const kAllocatorDumpNameWhitelist[] = {
     "blink_gc",
     "blink_gc/allocated_objects",
     "discardable",
     "discardable/child_0x?",
@@ skipping 37 matching lines @@
     "v8/isolate_0x?/heap_spaces/code_space",
     "v8/isolate_0x?/heap_spaces/large_object_space",
     "v8/isolate_0x?/heap_spaces/map_space",
     "v8/isolate_0x?/heap_spaces/new_space",
     "v8/isolate_0x?/heap_spaces/old_space",
     "v8/isolate_0x?/heap_spaces/other_spaces",
     "v8/isolate_0x?/malloc",
     "v8/isolate_0x?/zapped_for_debug",
     "winheap",
     "winheap/allocated_objects",
+    "sync/0x?/kernel",
+    "sync/0x?/store",
     nullptr  // End of list marker.
 };
 
 const char* const* g_dump_provider_whitelist = kDumpProviderWhitelist;
 const char* const* g_allocator_dump_name_whitelist =
     kAllocatorDumpNameWhitelist;
 
 }  // namespace
 
 bool IsMemoryDumpProviderWhitelisted(const char* mdp_name) {
@@ skipping 35 matching lines @@
 void SetDumpProviderWhitelistForTesting(const char* const* list) {
   g_dump_provider_whitelist = list;
 }
 
 void SetAllocatorDumpNameWhitelistForTesting(const char* const* list) {
   g_allocator_dump_name_whitelist = list;
 }
 
 }  // namespace trace_event
 }  // namespace base