Abstract notion of off-the-record in OmniboxMetricsProvider

chrome/browser/metrics/omnibox_metrics_provider.h

Index: chrome/browser/metrics/omnibox_metrics_provider.h
diff --git a/chrome/browser/metrics/omnibox_metrics_provider.h b/chrome/browser/metrics/omnibox_metrics_provider.h
index 875f616eaac4778f71ae107057f4152dfa61ca8a..fc86adf8e5e54255e0e94369f7f82a39c75a4270 100644
--- a/chrome/browser/metrics/omnibox_metrics_provider.h
+++ b/chrome/browser/metrics/omnibox_metrics_provider.h
@@ -16,7 +16,8 @@ struct OmniboxLog;
 // section of the UMA proto.
 class OmniboxMetricsProvider : public metrics::MetricsProvider {
  public:
-  OmniboxMetricsProvider();
+  explicit OmniboxMetricsProvider(
+      const base::Callback<bool(void)>& is_off_the_record_callback);
   ~OmniboxMetricsProvider() override;
 
   // metrics::MetricsDataProvider:
@@ -40,6 +41,10 @@ class OmniboxMetricsProvider : public metrics::MetricsProvider {
   // proto when ProvideGeneralMetrics() is called.
   metrics::ChromeUserMetricsExtension omnibox_events_cache;
 
+  // Callback passed in from the embedder that returns whether the user is
+  // currently operating off-the-record.
+  const base::Callback<bool(void)> is_off_the_record_callback_;
+
   DISALLOW_COPY_AND_ASSIGN(OmniboxMetricsProvider);
 };