[Sync] Implement EstimateMemoryUsage for SharedModelTypeProcessor and ModelTypeWorker

components/sync/engine/non_blocking_sync_common.cc

Index: components/sync/engine/non_blocking_sync_common.cc
diff --git a/components/sync/engine/non_blocking_sync_common.cc b/components/sync/engine/non_blocking_sync_common.cc
index 76c7c4902d81efa69d067a5d33bc9eb42a9f9fac..d00e1502411345a6c9e71cef6651229e29f6bfe2 100644
--- a/components/sync/engine/non_blocking_sync_common.cc
+++ b/components/sync/engine/non_blocking_sync_common.cc
@@ -4,6 +4,8 @@
 
 #include "components/sync/engine/non_blocking_sync_common.h"
 
+#include "base/trace_event/memory_usage_estimator.h"
+
 namespace syncer {
 
 CommitRequestData::CommitRequestData() {}
@@ -26,4 +28,23 @@ UpdateResponseData::UpdateResponseData(const UpdateResponseData& other) =
 
 UpdateResponseData::~UpdateResponseData() {}
 
+size_t EstimateMemoryUsage(const CommitRequestData& value) {
+  using base::trace_event::EstimateMemoryUsage;
+  size_t memory_usage = 0;
+  memory_usage += EstimateMemoryUsage(value.entity);
+  memory_usage += sizeof(value.sequence_number);
+  memory_usage += sizeof(value.base_version);
+  memory_usage += EstimateMemoryUsage(value.specifics_hash);
+  return memory_usage;
+}
+
+size_t EstimateMemoryUsage(const UpdateResponseData& value) {
+  using base::trace_event::EstimateMemoryUsage;
+  size_t memory_usage = 0;
+  memory_usage += EstimateMemoryUsage(value.entity);
+  memory_usage += sizeof(value.response_version);
+  memory_usage += EstimateMemoryUsage(value.encryption_key_name);
+  return memory_usage;
+}
+
 }  // namespace syncer