feat: track ReactNativeApplication.traceRequested event (#219)

Author: hoxyq

front_end/core/host/RNPerfMetrics.ts

@@ -216,6 +216,10 @@ class RNPerfMetrics {
 }
 }
 
+traceRequested(): void{
+this.sendEvent({eventName: 'Tracing.TraceRequested'});
+}
+
 heapSnapshotStarted(): void{
 this.sendEvent({
 eventName: 'MemoryPanelActionStarted',
@@ -539,12 +543,17 @@ export type ManualBreakpointSetSucceeded = Readonly<{
 }>,
 }>;
 
+exporttypeTracingTraceRequestedEvent=Readonly<{
+eventName: 'Tracing.TraceRequested',
+}>;
+
 exporttypeReactNativeChromeDevToolsEvent=
 EntrypointLoadingStartedEvent|EntrypointLoadingFinishedEvent|DebuggerReadyEvent|BrowserVisibilityChangeEvent|
 BrowserErrorEvent|RemoteDebuggingTerminatedEvent|DeveloperResourcesStartupLoadingFinishedEvent|
 DeveloperResourceLoadingStartedEvent|DeveloperResourceLoadingFinishedEvent|FuseboxSetClientMetadataStartedEvent|
-FuseboxSetClientMetadataFinishedEvent|MemoryPanelActionStartedEvent|MemoryPanelActionFinishedEvent|PanelShownEvent|
-PanelClosedEvent|StackTraceSymbolicationSucceeded|StackTraceSymbolicationFailed|StackTraceFrameUrlResolutionSucceeded|
-StackTraceFrameUrlResolutionFailed|ManualBreakpointSetSucceeded|StackTraceFrameClicked;
+FuseboxSetClientMetadataFinishedEvent|TracingTraceRequestedEvent|MemoryPanelActionStartedEvent|MemoryPanelActionFinishedEvent|
+PanelShownEvent|PanelClosedEvent|StackTraceSymbolicationSucceeded|StackTraceSymbolicationFailed|
+StackTraceFrameUrlResolutionSucceeded|StackTraceFrameUrlResolutionFailed|ManualBreakpointSetSucceeded|
+StackTraceFrameClicked;
 
 exporttypeDecoratedReactNativeChromeDevToolsEvent=CommonEventFields&ReactNativeChromeDevToolsEvent;

front_end/core/sdk/ReactNativeApplicationModel.ts

@@ -53,6 +53,7 @@ export class ReactNativeApplicationModel extends SDKModel<EventTypes> implements
 }
 
 traceRequested(): void{
+Host.rnPerfMetrics.traceRequested();
 this.dispatchEventToListeners(Events.TRACE_REQUESTED);
 }
 }