Make context available in log record processor onEmit (#2927)

Author: jack-berg

CHANGELOG.md

@@ -23,6 +23,9 @@ release.
 
 ### Logs
 
+- Add `Context` as argument to `LogRecordProcessor#onEmit`.
+  ([#2927](https://github.com/open-telemetry/opentelemetry-specification/pull/2927))
+
 ### Resource
 
 ### Semantic Conventions

specification/logs/api.md

@@ -179,7 +179,8 @@ fields:
 
 - [Timestamp](./data-model.md#field-timestamp)
 - [Observed Timestamp](./data-model.md#field-observedtimestamp)
-- [Trace Context](./data-model.md#trace-context-fields)
+- [Context](../context/README.md)
+  including [TraceContext](./data-model.md#trace-context-fields)
 - [Severity Number](./data-model.md#field-severitynumber)
 - [Severity Text](./data-model.md#field-severitytext)
 - [Body](./data-model.md#field-body)

specification/logs/sdk.md

@@ -179,6 +179,10 @@ therefore it SHOULD NOT block or throw exceptions.
 
 * `logRecord` - a [ReadWriteLogRecord](#readwritelogrecord) for the
   emitted `LogRecord`.
+* `context` - the `Context` that the SDK determined (the explicitly
+  passed `Context`, the current `Context`, or an empty `Context` if
+  the [Logger](./api.md#get-a-logger) was obtained
+  with `include_trace_context=false`)
 
 **Returns:** `Void`