[memory-infra] Whitelist TabRestoreService MDP.

base/trace_event/memory_infra_background_whitelist.cc

Index: base/trace_event/memory_infra_background_whitelist.cc
diff --git a/base/trace_event/memory_infra_background_whitelist.cc b/base/trace_event/memory_infra_background_whitelist.cc
index d6e9f5d16f7a57bce5b14ab922d4d7682ba96e04..33bdda992a6f4fae484b2f0f3c7e086bfb232f53 100644
--- a/base/trace_event/memory_infra_background_whitelist.cc
+++ b/base/trace_event/memory_infra_background_whitelist.cc
@@ -35,6 +35,7 @@ const char* const kDumpProviderWhitelist[] = {
     "V8Isolate",
     "WinHeap",
     "SyncDirectory",
+    "TabRestoreServiceHelper",

[ssid, 2017/02/07 18:58:59]

TabRestore service creates dumps even if there are no entries. Can we fix that
before enabling on slow reports? We might have a column without size and I don't
know what the memory mapper does in this case and might show weird results in
dashboard.

[DmitrySkiba, 2017/02/07 23:17:04]

Done.

     nullptr  // End of list marker.
 };
 
@@ -124,6 +125,8 @@ const char* const kAllocatorDumpNameWhitelist[] = {
     "sync/0x?/model_type/TYPED_URL",
     "sync/0x?/model_type/WALLET_METADATA",
     "sync/0x?/model_type/WIFI_CREDENTIAL",
+    "tab_restore/service_helper_0x?/entries/tab_0x?",
+    "tab_restore/service_helper_0x?/entries/window_0x?",

[ssid, 2017/02/07 18:58:59]

Is there a maximum number of service helpers and entries?

[DmitrySkiba, 2017/02/07 23:17:04]

Maximum value is 25, see TabRestoreServiceHelper::kMaxEntries

     nullptr  // End of list marker.
 };