[memory-infra] Whitelist sync model type counters.

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 70 matching lines @@
     "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",
+    "sync/0x?/model_type/APP",
+    "sync/0x?/model_type/APP_LIST",
+    "sync/0x?/model_type/APP_NOTIFICATION",
+    "sync/0x?/model_type/APP_SETTING",
+    "sync/0x?/model_type/ARC_PACKAGE",
+    "sync/0x?/model_type/ARTICLE",
+    "sync/0x?/model_type/AUTOFILL",
+    "sync/0x?/model_type/AUTOFILL_PROFILE",
+    "sync/0x?/model_type/AUTOFILL_WALLET",
+    "sync/0x?/model_type/BOOKMARK",
+    "sync/0x?/model_type/DEVICE_INFO",
+    "sync/0x?/model_type/DICTIONARY",
+    "sync/0x?/model_type/EXPERIMENTS",
+    "sync/0x?/model_type/EXTENSION",
+    "sync/0x?/model_type/EXTENSION_SETTING",
+    "sync/0x?/model_type/FAVICON_IMAGE",
+    "sync/0x?/model_type/FAVICON_TRACKING",
+    "sync/0x?/model_type/HISTORY_DELETE_DIRECTIVE",
+    "sync/0x?/model_type/MANAGED_USER",
+    "sync/0x?/model_type/MANAGED_USER_SETTING",
+    "sync/0x?/model_type/MANAGED_USER_SHARED_SETTING",
+    "sync/0x?/model_type/MANAGED_USER_WHITELIST",
+    "sync/0x?/model_type/NIGORI",
+    "sync/0x?/model_type/PASSWORD",
+    "sync/0x?/model_type/PREFERENCE",
+    "sync/0x?/model_type/PRINTER",
+    "sync/0x?/model_type/PRIORITY_PREFERENCE",
+    "sync/0x?/model_type/READING_LIST",
+    "sync/0x?/model_type/SEARCH_ENGINE",
+    "sync/0x?/model_type/SESSION",
+    "sync/0x?/model_type/SYNCED_NOTIFICATION",
+    "sync/0x?/model_type/SYNCED_NOTIFICATION_APP_INFO",
+    "sync/0x?/model_type/THEME",
+    "sync/0x?/model_type/TYPED_URL",
+    "sync/0x?/model_type/WALLET_METADATA",
+    "sync/0x?/model_type/WIFI_CREDENTIAL",

[ssid, 2017/01/25 22:24:09]

Do we have a comment in Sync ModelType definitions to update this file if that
is updated?

If not let's remove these from whitelist after our issue is fixed, ie lets see
what model is causing the issue and once fixed, let's not add the model type to
slow reports anymore. Also this would cause lot of extra string comparisons at
each CreateAllocatorDump(). wdyt?

     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