[tracing] Dump child processes' memory metrics in browser

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 493316ea857e3e3e9f1ca66b7d42c7986337288f..ea09464409dd38994cb9cee2dda3fb4be475e7c0 100644
--- a/base/trace_event/BUILD.gn
+++ b/base/trace_event/BUILD.gn
@@ -34,11 +34,8 @@ source_set("trace_event") {
     "process_memory_dump.h",
     "process_memory_maps.cc",
     "process_memory_maps.h",
-    "process_memory_maps_dump_provider.h",
     "process_memory_totals.cc",
     "process_memory_totals.h",
-    "process_memory_totals_dump_provider.cc",
-    "process_memory_totals_dump_provider.h",
     "trace_buffer.cc",
     "trace_buffer.h",
     "trace_config.cc",
@@ -69,10 +66,7 @@ source_set("trace_event") {
   ]
 
   if (is_nacl) {
-    sources -= [
-      "process_memory_totals_dump_provider.cc",
-      "trace_event_system_stats_monitor.cc",
-    ]
+    sources -= [ "trace_event_system_stats_monitor.cc" ]
   }
 
   if (is_linux || is_android || is_mac) {
@@ -82,10 +76,6 @@ source_set("trace_event") {
     ]
   }
 
-  if (is_linux || is_android) {
-    sources += [ "process_memory_maps_dump_provider.cc" ]
-  }
-
   configs += [ "//base:base_implementation" ]
 
   deps = [
@@ -120,7 +110,6 @@ source_set("trace_event_unittests") {
     "memory_allocator_dump_unittest.cc",
     "memory_dump_manager_unittest.cc",
     "process_memory_dump_unittest.cc",
-    "process_memory_totals_dump_provider_unittest.cc",
     "trace_config_memory_test_util.h",
     "trace_config_unittest.cc",
     "trace_event_argument_unittest.cc",
@@ -131,10 +120,6 @@ source_set("trace_event_unittests") {
     "winheap_dump_provider_win_unittest.cc",
   ]
 
-  if (is_linux || is_android) {
-    sources += [ "process_memory_maps_dump_provider_unittest.cc" ]
-  }
-
   deps = [
     "//base/test:test_support",
     "//testing/gmock",