| "flat_key","key","int_value","string_value" |
| "chrome_app_state","chrome_app_state","[NULL]","APP_STATE_FOREGROUND" |
| "chrome_keyed_service.name","chrome_keyed_service.name","[NULL]","MediaRouter" |
| "chrome_latency_info.component_info.component_type","chrome_latency_info.component_info[0].component_type","[NULL]","COMPONENT_INPUT_EVENT_LATENCY_FIRST_SCROLL_UPDATE_ORIGINAL" |
| "chrome_latency_info.component_info.time_us","chrome_latency_info.component_info[0].time_us",1201,"[NULL]" |
| "chrome_latency_info.component_info.time_us","chrome_latency_info.component_info[1].time_us",928310,"[NULL]" |
| "chrome_latency_info.is_coalesced","chrome_latency_info.is_coalesced",1,"[NULL]" |
| "chrome_latency_info.trace_id","chrome_latency_info.trace_id",7,"[NULL]" |
| "chrome_legacy_ipc.message_class","chrome_legacy_ipc.message_class","[NULL]","CLASS_AUTOMATION" |
| "chrome_legacy_ipc.message_line","chrome_legacy_ipc.message_line",10,"[NULL]" |
| "chrome_memory_pressure_notification.file_name","chrome_memory_pressure_notification.file_name","[NULL]","another_source.cc" |
| "chrome_memory_pressure_notification.function_name","chrome_memory_pressure_notification.function_name","[NULL]","AnotherSourceFunction" |
| "chrome_memory_pressure_notification.line_number","chrome_memory_pressure_notification.line_number",1337,"[NULL]" |
| "chrome_user_event.action","chrome_user_event.action","[NULL]","NewTab" |
| "event.category","event.category","[NULL]","cat" |
| "event.category","event.category","[NULL]","cat" |
| "event.category","event.category","[NULL]","cat" |
| "event.category","event.category","[NULL]","cat" |
| "event.category","event.category","[NULL]","cat" |
| "event.category","event.category","[NULL]","cat" |
| "event.name","event.name","[NULL]","name1" |
| "event.name","event.name","[NULL]","name2" |
| "event.name","event.name","[NULL]","name3" |
| "event.name","event.name","[NULL]","name4" |
| "event.name","event.name","[NULL]","name5" |
| "event.name","event.name","[NULL]","name6" |
| "int_extension_for_testing","int_extension_for_testing[0]",42,"[NULL]" |
| "int_extension_for_testing","int_extension_for_testing[1]",1337,"[NULL]" |
| "is_root_in_scope","is_root_in_scope",1,"[NULL]" |
| "nested_message_extension_for_testing.arg1","nested_message_extension_for_testing.arg1","[NULL]","value" |
| "nested_message_extension_for_testing.arg2.key","nested_message_extension_for_testing.arg2.key","[NULL]","value" |
| "nested_message_extension_for_testing.child_field_for_testing","nested_message_extension_for_testing.child_field_for_testing","[NULL]","nesting test" |
| "source","source","[NULL]","descriptor" |
| "source.file_name","source.file_name","[NULL]","source.cc" |
| "source.function_name","source.function_name","[NULL]","SourceFunction" |
| "source.line_number","source.line_number",0,"[NULL]" |
| "source_id","source_id",1,"[NULL]" |
| "source_location_iid","source_location_iid",1,"[NULL]" |
| "string_extension_for_testing","string_extension_for_testing","[NULL]","an extension string!" |
