[tracing] Throttle rate of heavy dumps and support to request light/heavy dumps

content/browser/devtools/protocol/tracing_handler.cc

Index: content/browser/devtools/protocol/tracing_handler.cc
diff --git a/content/browser/devtools/protocol/tracing_handler.cc b/content/browser/devtools/protocol/tracing_handler.cc
index 66f54d21de2b8fdaf523f92f73f28fbebd2b845e..d9e0ceda09ebf2f297bab81e6fce82bd78b89ca4 100644
--- a/content/browser/devtools/protocol/tracing_handler.cc
+++ b/content/browser/devtools/protocol/tracing_handler.cc
@@ -159,8 +159,10 @@ Response TracingHandler::RequestMemoryDump(DevToolsCommandId command_id) {
   if (!did_initiate_recording_)
     return Response::InternalError("Tracing is not started");
 
+  base::trace_event::MemoryDumpArgs dump_args = {
+      base::trace_event::MemoryDumpArgs::LEVEL_OF_DETAIL_HIGH};
   base::trace_event::MemoryDumpManager::GetInstance()->RequestGlobalDump(
-      base::trace_event::MemoryDumpType::EXPLICITLY_TRIGGERED,
+      base::trace_event::MemoryDumpType::EXPLICITLY_TRIGGERED, dump_args,
       base::Bind(&TracingHandler::OnMemoryDumpFinished,
                  weak_factory_.GetWeakPtr(), command_id));
   return Response::OK();