Omnibox Metrics - Record Age of Clipboard Suggestions Shown

components/omnibox/browser/clipboard_url_provider.cc

Index: components/omnibox/browser/clipboard_url_provider.cc
diff --git a/components/omnibox/browser/clipboard_url_provider.cc b/components/omnibox/browser/clipboard_url_provider.cc
index 234fdfff54de313179b629806587a5e424a2fe0d..27babb71d130dcf80aef7b851c515011c36b5d78 100644
--- a/components/omnibox/browser/clipboard_url_provider.cc
+++ b/components/omnibox/browser/clipboard_url_provider.cc
@@ -53,6 +53,8 @@ void ClipboardURLProvider::Start(const AutocompleteInput& input,
   }
   UMA_HISTOGRAM_BOOLEAN("Omnibox.ClipboardSuggestionShownWithCurrentURL",
                         !matches_.empty());
+  UMA_HISTOGRAM_LONG_TIMES_100("Omnibox.ClipboardSuggestionShownAge",
+                               clipboard_content_->GetClipboardContentAge());

[Ilya Sherman, 2017/04/05 01:35:56]

Just to confirm: Does this histogram really need 100 buckets rather than the
standard 50?  If so, what's the motivation?  (Should we be recommending 100
buckets more broadly, or is this metric unusual?)

[Mark P, 2017/04/05 04:17:57]

I used this UMA macro so the data is comparable to another histogram.

Which reminds me, I'll expand the histogram description to mention that.

Also, I'll add the histogram to this file.  (It was previously in the internal
repository.)

 
   // Add the clipboard match. The relevance is 800 to beat ZeroSuggest results.
   AutocompleteMatch match(this, 800, false, AutocompleteMatchType::CLIPBOARD);