Add configurable limit to allocations in heap profiler.

base/trace_event/malloc_dump_provider.cc

Index: base/trace_event/malloc_dump_provider.cc
diff --git a/base/trace_event/malloc_dump_provider.cc b/base/trace_event/malloc_dump_provider.cc
index be6efc866a363810bc87057b180624b61c1fabd1..eabe50ee216205740fb5be052be89febecc502fa 100644
--- a/base/trace_event/malloc_dump_provider.cc
+++ b/base/trace_event/malloc_dump_provider.cc
@@ -195,8 +195,7 @@ bool MallocDumpProvider::OnMemoryDump(const MemoryDumpArgs& args,
 
     if (!metrics_by_context.empty()) {
       std::unique_ptr<TracedValue> heap_dump = ExportHeapDump(
-          metrics_by_context, pmd->session_state()->stack_frame_deduplicator(),
-          pmd->session_state()->type_name_deduplicator());
+          metrics_by_context, *pmd->session_state());
       pmd->AddHeapDump("malloc", std::move(heap_dump));
     }
     overhead.DumpInto("tracing/heap_profiler_malloc", pmd);