[tracing] Implement polling in MemoryDumpManager

base/trace_event/memory_dump_session_state.cc

Index: base/trace_event/memory_dump_session_state.cc
diff --git a/base/trace_event/memory_dump_session_state.cc b/base/trace_event/memory_dump_session_state.cc
index 3e3bedbb2989b382dab7c85cc002dbc4f4287b64..dbafbe0c8fce39ef30ca59ec0568faddf60b77f0 100644
--- a/base/trace_event/memory_dump_session_state.cc
+++ b/base/trace_event/memory_dump_session_state.cc
@@ -7,8 +7,7 @@
 namespace base {
 namespace trace_event {
 
-MemoryDumpSessionState::MemoryDumpSessionState() : is_polling_enabled_(false) {}
-
+MemoryDumpSessionState::MemoryDumpSessionState() {}
 MemoryDumpSessionState::~MemoryDumpSessionState() {}
 
 void MemoryDumpSessionState::SetStackFrameDeduplicator(
@@ -23,13 +22,14 @@ void MemoryDumpSessionState::SetTypeNameDeduplicator(
   type_name_deduplicator_ = std::move(type_name_deduplicator);
 }
 
-void MemoryDumpSessionState::SetMemoryDumpConfig(
-    const TraceConfig::MemoryDumpConfig& config) {
-  memory_dump_config_ = config;
-  for (const auto& trigger : config.triggers) {
-    if (trigger.trigger_type == MemoryDumpType::PEAK_MEMORY_USAGE)
-      is_polling_enabled_ = true;
-  }
+void MemoryDumpSessionState::SetAllowedDumpModes(
+    std::set<MemoryDumpLevelOfDetail> allowed_dump_modes) {
+  allowed_dump_modes_ = allowed_dump_modes;
+}
+
+bool MemoryDumpSessionState::IsDumpModeAllowed(
+    MemoryDumpLevelOfDetail dump_mode) const {
+  return allowed_dump_modes_.count(dump_mode) != 0;
 }
 
 }  // namespace trace_event