Add UMA for the content suggestions settings

components/ntp_snippets/content_suggestions_service.h

Index: components/ntp_snippets/content_suggestions_service.h
diff --git a/components/ntp_snippets/content_suggestions_service.h b/components/ntp_snippets/content_suggestions_service.h
index 40d665c78e818a179cf0381e6c4d0cac7046e4c3..9bac241d728ed05d3e3b0188e5c449b55c52ed73 100644
--- a/components/ntp_snippets/content_suggestions_service.h
+++ b/components/ntp_snippets/content_suggestions_service.h
@@ -231,18 +231,18 @@ class ContentSuggestionsService : public KeyedService,
   // supports it).
   void ClearDismissedSuggestionsForDebugging(Category category);
 
-  // Enables or disables the remote suggestions service.
-  void SetRemoteSuggestionsServiceEnabled(bool enabled);
+  // Enables or disables the remote suggestions provider.
+  void SetRemoteSuggestionsEnabled(bool enabled);
 
-  // Returns true if the remote suggestions service is enabled.
-  bool IsRemoteSuggestionsServiceEnabled() const;
+  // Returns true if the remote suggestions provider is enabled.
+  bool AreRemoteSuggestionsEnabled() const;
 
-  // Returns true if the remote service is managed by an adminstrator's policy.
-  bool IsRemoteSuggestionsServiceManaged() const;
+  // Returns true if the remote provider is managed by an adminstrator's policy.
+  bool AreRemoteSuggestionsManaged() const;
 
-  // Returns true if the remote service is managed by the guardian/parent of a
+  // Returns true if the remote provider is managed by the guardian/parent of a
   // child account.
-  bool IsRemoteSuggestionsServiceManagedByCustodian() const;
+  bool AreRemoteSuggestionsManagedByCustodian() const;
 
   // The reference to the RemoteSuggestionsProvider provider should
   // only be set by the factory and only used for debugging.