Fix a tyop: "particate" -> "participate".
TBR=jamesr@chromium.org
Review URL: https://codereview.chromium.org/922113002
diff --git a/services/tracing/tracing.mojom b/services/tracing/tracing.mojom
index 64bbd20..fa8be1f 100644
--- a/services/tracing/tracing.mojom
+++ b/services/tracing/tracing.mojom
@@ -4,7 +4,7 @@
module tracing;
-// To particate in the tracing ecosystem, implement the TraceController
+// To participate in the tracing ecosystem, implement the TraceController
// interface and connect to the tracing app. Then, when the controller's Start()
// function is called collect tracing data and pass it back via the provided
// TraceDataCollector interface up until Stop() is called.
