Update from https://crrev.com/333737

base/trace_event/BUILD.gn

Index: base/trace_event/BUILD.gn
diff --git a/base/trace_event/BUILD.gn b/base/trace_event/BUILD.gn
index 633ab90ca7cfe4ba239a0737a808e24d3de3fb99..64c76da38cb950166799b832a9710440374bffeb 100644
--- a/base/trace_event/BUILD.gn
+++ b/base/trace_event/BUILD.gn
@@ -8,6 +8,8 @@ source_set("trace_event") {
     "java_heap_dump_provider_android.h",
     "memory_allocator_dump.cc",
     "memory_allocator_dump.h",
+    "memory_allocator_dump_guid.cc",
+    "memory_allocator_dump_guid.h",
     "memory_dump_manager.cc",
     "memory_dump_manager.h",
     "memory_dump_provider.h",
@@ -24,6 +26,8 @@ source_set("trace_event") {
     "process_memory_totals.h",
     "process_memory_totals_dump_provider.cc",
     "process_memory_totals_dump_provider.h",
+    "trace_config.cc",
+    "trace_config.h",
     "trace_event.h",
     "trace_event_android.cc",
     "trace_event_argument.cc",
@@ -88,8 +92,10 @@ source_set("trace_event_unittests") {
     "java_heap_dump_provider_android_unittest.cc",
     "memory_allocator_dump_unittest.cc",
     "memory_dump_manager_unittest.cc",
+    "process_memory_dump_unittest.cc",
     "process_memory_maps_dump_provider_unittest.cc",
     "process_memory_totals_dump_provider_unittest.cc",
+    "trace_config_unittest.cc",
     "trace_event_argument_unittest.cc",
     "trace_event_memory_unittest.cc",
     "trace_event_synthetic_delay_unittest.cc",