[tracing] Dump child processes' memory metrics in browser

base/BUILD.gn

 # Copyright (c) 2013 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 # HOW TO WRITE CONDITIONALS IN THIS FILE
 # ======================================
 #
 # In many other places, one would write a conditional that expresses all the
 # cases when a source file is used or unused, and then either add or subtract
 # it from the sources list in that case
@@ skipping 831 matching lines @@
     "trace_event/memory_dump_manager.h",
     "trace_event/memory_dump_provider.h",
     "trace_event/memory_dump_request_args.cc",
     "trace_event/memory_dump_request_args.h",
     "trace_event/memory_dump_session_state.cc",
     "trace_event/memory_dump_session_state.h",
     "trace_event/process_memory_dump.cc",
     "trace_event/process_memory_dump.h",
     "trace_event/process_memory_maps.cc",
     "trace_event/process_memory_maps.h",
-    "trace_event/process_memory_maps_dump_provider.h",
     "trace_event/process_memory_totals.cc",
     "trace_event/process_memory_totals.h",
-    "trace_event/process_memory_totals_dump_provider.cc",
-    "trace_event/process_memory_totals_dump_provider.h",
     "trace_event/trace_buffer.cc",
     "trace_event/trace_buffer.h",
     "trace_event/trace_config.cc",
     "trace_event/trace_config.h",
     "trace_event/trace_event.h",
     "trace_event/trace_event_android.cc",
     "trace_event/trace_event_argument.cc",
     "trace_event/trace_event_argument.h",
     "trace_event/trace_event_etw_export_win.cc",
     "trace_event/trace_event_etw_export_win.h",
@@ skipping 109 matching lines @@
   # Android.
   if (is_android) {
     sources -= [
       "debug/stack_trace_posix.cc",
       "power_monitor/power_monitor_device_source_posix.cc",
     ]
 
     # Android uses some Linux sources, put those back.
     set_sources_assignment_filter([])
     sources += [
-      "debug/proc_maps_linux.cc",

[Primiano Tucci (use gerrit), 2016/01/05 11:55:17]

I think you are mistakenly removing this line after some rebase

[ssid, 2016/01/06 20:26:33]

Done.

       "files/file_path_watcher_linux.cc",
       "posix/unix_domain_socket_linux.cc",
       "process/internal_linux.cc",
       "process/memory_linux.cc",
       "process/process_handle_linux.cc",
       "process/process_iterator_linux.cc",
       "process/process_metrics_linux.cc",
       "sys_info_linux.cc",
       "trace_event/malloc_dump_provider.cc",
       "trace_event/malloc_dump_provider.h",
-      "trace_event/process_memory_maps_dump_provider.cc",
     ]
     set_sources_assignment_filter(sources_assignment_filter)
 
     deps += [
       ":base_jni_headers",
       "//third_party/android_tools:cpu_features",
       "//third_party/ashmem",
     ]
 
     # Needs to be a public config so that dependent targets link against it as
@@ skipping 46 matching lines @@
       "process/memory.h",
       "process/process_iterator.cc",
       "process/process_iterator.h",
       "process/process_metrics.cc",
       "process/process_metrics_posix.cc",
       "process/process_posix.cc",
       "scoped_native_library.cc",
       "sync_socket_posix.cc",
       "sys_info.cc",
       "sys_info_posix.cc",
-      "trace_event/process_memory_totals_dump_provider.cc",
       "trace_event/trace_event_system_stats_monitor.cc",
     ]
 
     if (is_nacl_nonsfi) {
       set_sources_assignment_filter([])
       sources += [ "posix/unix_domain_socket_linux.cc" ]
       set_sources_assignment_filter(sources_assignment_filter)
       sources -= [ "rand_util_nacl.cc" ]
       configs += [ ":nacl_nonsfi_warnings" ]
     } else {
@@ skipping 108 matching lines @@
       "files/file_path_watcher_kqueue.cc",
       "files/file_path_watcher_kqueue.h",
     ]
   }
 
   # Linux.
   if (is_linux) {
     sources += [
       "trace_event/malloc_dump_provider.cc",
       "trace_event/malloc_dump_provider.h",
-      "trace_event/process_memory_maps_dump_provider.cc",
     ]
 
     if (is_asan || is_lsan || is_msan || is_tsan) {
       # For llvm-sanitizer.
       data += [ "//third_party/llvm-build/Release+Asserts/lib/libstdc++.so.6" ]
     }
 
     # TODO(brettw) this will need to be parameterized at some point.
     linux_configs = []
     if (use_glib) {
@@ skipping 616 matching lines @@
     "tools_sanity_unittest.cc",
     "trace_event/heap_profiler_allocation_context_tracker_unittest.cc",
     "trace_event/heap_profiler_allocation_register_unittest.cc",
     "trace_event/heap_profiler_heap_dump_writer_unittest.cc",
     "trace_event/heap_profiler_stack_frame_deduplicator_unittest.cc",
     "trace_event/heap_profiler_type_name_deduplicator_unittest.cc",
     "trace_event/java_heap_dump_provider_android_unittest.cc",
     "trace_event/memory_allocator_dump_unittest.cc",
     "trace_event/memory_dump_manager_unittest.cc",
     "trace_event/process_memory_dump_unittest.cc",
-    "trace_event/process_memory_totals_dump_provider_unittest.cc",
     "trace_event/trace_config_memory_test_util.h",
     "trace_event/trace_config_unittest.cc",
     "trace_event/trace_event_argument_unittest.cc",
     "trace_event/trace_event_synthetic_delay_unittest.cc",
     "trace_event/trace_event_system_stats_monitor_unittest.cc",
     "trace_event/trace_event_unittest.cc",
     "trace_event/winheap_dump_provider_win_unittest.cc",
     "tracked_objects_unittest.cc",
     "tuple_unittest.cc",
     "values_unittest.cc",
@@ skipping 94 matching lines @@
     if (use_glib) {
       configs += [ "//build/config/linux:glib" ]
     }
 
     if (!is_component_build) {
       # Set rpath to find libmalloc_wrapper.so even in a non-component build.
       configs += [ "//build/config/gcc:rpath_for_built_shared_libraries" ]
     }
   }
 
-  if (is_linux || is_android) {
-    sources += [ "trace_event/process_memory_maps_dump_provider_unittest.cc" ]
-  }
-
   if (!is_linux || use_ozone) {
     sources -= [ "message_loop/message_pump_glib_unittest.cc" ]
   }
 
   if (is_posix && !is_ios) {
     sources += [ "message_loop/message_pump_libevent_unittest.cc" ]
     deps += [ "//base/third_party/libevent" ]
   }
 
   if (is_android) {
@@ skipping 188 matching lines @@
 
   # GYP: //base.gyp:base_java_unittest_support
   android_library("base_java_unittest_support") {
     deps = [
       ":base_java",
     ]
     java_files =
         [ "test/android/java/src/org/chromium/base/ContentUriTestUtils.java" ]
   }
 }