memory-infra: Switch to MemoryPeakDetector and simplify MemoryDumpScheduler

base/trace_event/memory_peak_detector.h

Index: base/trace_event/memory_peak_detector.h
diff --git a/base/trace_event/memory_peak_detector.h b/base/trace_event/memory_peak_detector.h
index 8de615e64bdff165e5fb6d917d1ecfe00c87208a..2afb0a570a98a56251694aed71df3aca24d928c6 100644
--- a/base/trace_event/memory_peak_detector.h
+++ b/base/trace_event/memory_peak_detector.h
@@ -48,6 +48,11 @@ class BASE_EXPORT MemoryPeakDetector {
 
   // Peak detector configuration, passed to Start().
   struct Config {
+    Config();
+    Config(uint32_t polling_interval_ms,
+           uint32_t min_time_between_peaks_ms,
+           bool enable_verbose_poll_tracing);
+
     // The rate at which memory will be polled. Polls will happen on the task
     // runner passed to Setup().
     uint32_t polling_interval_ms;