[DevTools] Tag ChromeStatus link for heavy ad console message

Fixed: chromium:1143205
Change-Id: I95d7797c33c98de901b5c88904ddaac0e757df4a
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2503695Reviewed-by: Eric Robinson <ericrobinson@chromium.org>
Commit-Queue: Mathias Bynens <mathias@chromium.org>
Cr-Commit-Position: refs/heads/master@{#821718}

chrome/browser/page_load_metrics/observers/ad_metrics/ads_page_load_metrics_observer.cc

@@ -125,7 +125,7 @@ void RecordFeatureUsage(content::RenderFrameHost* rfh,
 std::string GetHeavyAdReportMessage(const FrameTreeData& frame_data,
                                     bool will_unload_adframe) {
   const char kChromeStatusMessage[] =
-      "See https://www.chromestatus.com/feature/4800491902992384";
+      "See https://www.chromestatus.com/feature/4800491902992384?utm_source=devtools";
   const char kReportingOnlyMessage[] =
       "A future version of Chrome may remove this ad";
   const char kInterventionMessage[] = "Ad was removed";

chrome/browser/page_load_metrics/observers/ad_metrics/ads_page_load_metrics_observer_unittest.cc

@@ -2111,7 +2111,7 @@ TEST_F(AdsPageLoadMetricsObserverTest, HeavyAdNetworkUsage_InterventionFired) {
 
   const char kInterventionMessage[] =
       "Ad was removed because its network usage exceeded the limit. "
-      "See https://www.chromestatus.com/feature/4800491902992384";
+      "See https://www.chromestatus.com/feature/4800491902992384?utm_source=devtools";
   EXPECT_TRUE(HasInterventionReportsAfterFlush(ad_frame));
   EXPECT_EQ(kInterventionMessage, PopLastInterventionReportMessage());
 
@@ -2345,7 +2345,7 @@ TEST_F(AdsPageLoadMetricsObserverTest,
   const char kReportOnlyMessage[] =
       "Ad was removed because its "
       "total CPU usage exceeded the limit. "
-      "See https://www.chromestatus.com/feature/4800491902992384";
+      "See https://www.chromestatus.com/feature/4800491902992384?utm_source=devtools";
   EXPECT_TRUE(HasInterventionReportsAfterFlush(ad_frame));
   histogram_tester().ExpectUniqueSample(
       SuffixedHistogram("HeavyAds.InterventionType2"),
@@ -2826,7 +2826,7 @@ TEST_F(AdsPageLoadMetricsObserverTest,
   const char kReportOnlyMessage[] =
       "A future version of Chrome may remove this ad because its network "
       "usage exceeded the limit. "
-      "See https://www.chromestatus.com/feature/4800491902992384";
+      "See https://www.chromestatus.com/feature/4800491902992384?utm_source=devtools";
 
   EXPECT_TRUE(HasInterventionReportsAfterFlush(ad_frame));
   EXPECT_EQ(kReportOnlyMessage, PopLastInterventionReportMessage());