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

base/trace_event/memory_dump_manager.h

Index: base/trace_event/memory_dump_manager.h
diff --git a/base/trace_event/memory_dump_manager.h b/base/trace_event/memory_dump_manager.h
index e918a773a6d371aae386133b06ed8eb3e0d596c7..5c75e4e82e882b3e0f49b63f72ffc094496106e8 100644
--- a/base/trace_event/memory_dump_manager.h
+++ b/base/trace_event/memory_dump_manager.h
@@ -60,15 +60,18 @@ class BASE_EXPORT MemoryDumpManager : public TraceLog::EnabledStateObserver {
 
   // Requests a memory dump. The dump might happen or not depending on the
   // filters and categories specified when enabling tracing.
+  // The |dump_args| is used to specify the dump's level of detail.
   // The optional |callback| is executed asynchronously, on an arbitrary thread,
   // to notify about the completion of the global dump (i.e. after all the
   // processes have dumped) and its success (true iff all the dumps were
   // successful).
   void RequestGlobalDump(MemoryDumpType dump_type,
+                         const MemoryDumpArgs& dump_args,
                          const MemoryDumpCallback& callback);
 
   // Same as above (still asynchronous), but without callback.
-  void RequestGlobalDump(MemoryDumpType dump_type);
+  void RequestGlobalDump(MemoryDumpType dump_type,
+                         const MemoryDumpArgs& dump_args);
 
   // TraceLog::EnabledStateObserver implementation.
   void OnTraceLogEnabled() override;