Add UMA for the Recorder panel

Backend CL: crrev.com/c/3268130
Bug: 1267792
Change-Id: I62857d299b9e6cd9da0ef369554508df23229053
Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/3268285
Reviewed-by: Mathias Bynens <mathias@chromium.org>
Commit-Queue: Alex Rudenko <alexrudenko@chromium.org>

front_end/core/host/InspectorFrontendHostAPI.ts

@@ -369,4 +369,9 @@ export enum EnumeratedHistogram {
   Language = 'DevTools.Language',
   ConsoleShowsCorsErrors = 'DevTools.ConsoleShowsCorsErrors',
   SyncSetting = 'DevTools.SyncSetting',
+  RecordingEdited = 'DevTools.RecordingEdited',
+  RecordingExported = 'DevTools.RecordingExported',
+  RecordingReplayFinished = 'DevTools.RecordingReplayFinished',
+  RecordingReplayStarted = 'DevTools.RecordingReplayStarted',
+  RecordingToggled = 'DevTools.RecordingToggled',
 }

front_end/core/host/UserMetrics.ts

@@ -261,6 +261,31 @@ export class UserMetrics {
       InspectorFrontendHostInstance.recordEnumeratedHistogram(EnumeratedHistogram.SyncSetting, settingValue, size);
     });
   }
+
+  recordingToggled(value: RecordingToggled): void {
+    const size = Object.keys(RecordingToggled).length + 1;
+    InspectorFrontendHostInstance.recordEnumeratedHistogram(EnumeratedHistogram.RecordingToggled, value, size);
+  }
+
+  recordingReplayFinished(value: RecordingReplayFinished): void {
+    const size = Object.keys(RecordingReplayFinished).length + 1;
+    InspectorFrontendHostInstance.recordEnumeratedHistogram(EnumeratedHistogram.RecordingReplayFinished, value, size);
+  }
+
+  recordingReplayStarted(value: RecordingReplayStarted): void {
+    const size = Object.keys(RecordingReplayStarted).length + 1;
+    InspectorFrontendHostInstance.recordEnumeratedHistogram(EnumeratedHistogram.RecordingReplayStarted, value, size);
+  }
+
+  recordingEdited(value: RecordingEdited): void {
+    const size = Object.keys(RecordingEdited).length + 1;
+    InspectorFrontendHostInstance.recordEnumeratedHistogram(EnumeratedHistogram.RecordingEdited, value, size);
+  }
+
+  recordingExported(value: RecordingExported): void {
+    const size = Object.keys(RecordingExported).length + 1;
+    InspectorFrontendHostInstance.recordEnumeratedHistogram(EnumeratedHistogram.RecordingExported, value, size);
+  }
 }
 
 // Codes below are used to collect UMA histograms in the Chromium port.
@@ -827,3 +852,48 @@ export enum SyncSetting {
   DevToolsSyncSettingDisabled = 3,
   DevToolsSyncSettingEnabled = 4,
 }
+
+// TODO(crbug.com/1167717): Make this a const enum again
+// eslint-disable-next-line rulesdir/const_enum
+export enum RecordingToggled {
+  RecordingStarted = 1,
+  RecordingFinished = 2,
+}
+
+// TODO(crbug.com/1167717): Make this a const enum again
+// eslint-disable-next-line rulesdir/const_enum
+export enum RecordingReplayFinished {
+  Success = 1,
+  TimeoutErrorSelectors = 2,
+  TimeoutErrorTarget = 3,
+  OtherError = 4,
+}
+
+// TODO(crbug.com/1167717): Make this a const enum again
+// eslint-disable-next-line rulesdir/const_enum
+export enum RecordingReplayStarted {
+  ReplayOnly = 1,
+  ReplayWithPerformanceTracing = 2,
+}
+
+// TODO(crbug.com/1167717): Make this a const enum again
+// eslint-disable-next-line rulesdir/const_enum
+export enum RecordingEdited {
+  SelectorPickerUsed = 1,
+  StepAdded = 2,
+  StepRemoved = 3,
+  SelectorAdded = 4,
+  SelectorRemoved = 5,
+  SelectorPartAdded = 6,
+  SelectorPartEdited = 7,
+  SelectorPartRemoved = 8,
+  TypeChanged = 9,
+  OtherEditing = 10,
+}
+
+// TODO(crbug.com/1167717): Make this a const enum again
+// eslint-disable-next-line rulesdir/const_enum
+export enum RecordingExported {
+  ToPuppeteer = 1,
+  ToJSON = 2,
+}

front_end/devtools_compatibility.js

@@ -396,6 +396,11 @@
     LinearMemoryInspectorTarget: 'DevTools.LinearMemoryInspector.Target',
     Language: 'DevTools.Language',
     ConsoleShowsCorsErrors: 'DevTools.ConsoleShowsCorsErrors',
+    RecordingEdited: 'DevTools.RecordingEdited',
+    RecordingExported: 'DevTools.RecordingExported',
+    RecordingReplayFinished: 'DevTools.RecordingReplayFinished',
+    RecordingReplayStarted: 'DevTools.RecordingReplayStarted',
+    RecordingToggled: 'DevTools.RecordingToggled',
   };
 
   /**