Implement THROTTLED priority semantics.

chrome/browser/ssl/chrome_expect_ct_reporter_unittest.cc

Index: chrome/browser/ssl/chrome_expect_ct_reporter_unittest.cc
diff --git a/chrome/browser/ssl/chrome_expect_ct_reporter_unittest.cc b/chrome/browser/ssl/chrome_expect_ct_reporter_unittest.cc
index 7efa5a13fdca8aeda652d9fae70042519ec9bfcf..0c920386a0fcf14ac00c07b7b7b41ae5340cf788 100644
--- a/chrome/browser/ssl/chrome_expect_ct_reporter_unittest.cc
+++ b/chrome/browser/ssl/chrome_expect_ct_reporter_unittest.cc
@@ -341,6 +341,7 @@ void EnableFeature() {
 
 // Test that no report is sent when the feature is not enabled.
 TEST(ChromeExpectCTReporterTest, FeatureDisabled) {
+  content::TestBrowserThreadBundle thread_bundle;
   base::HistogramTester histograms;
   histograms.ExpectTotalCount(kSendHistogramName, 0);
 
@@ -369,6 +370,7 @@ TEST(ChromeExpectCTReporterTest, FeatureDisabled) {
 
 // Test that no report is sent if the report URI is empty.
 TEST(ChromeExpectCTReporterTest, EmptyReportURI) {
+  content::TestBrowserThreadBundle thread_bundle;
   base::HistogramTester histograms;
   histograms.ExpectTotalCount(kSendHistogramName, 0);
 
@@ -418,6 +420,7 @@ TEST_F(ChromeExpectCTReporterWaitTest, SendReportFailure) {
 
 // Test that a sent report has the right format.
 TEST(ChromeExpectCTReporterTest, SendReport) {
+  content::TestBrowserThreadBundle thread_bundle;
   base::HistogramTester histograms;
   histograms.ExpectTotalCount(kFailureHistogramName, 0);
   histograms.ExpectTotalCount(kSendHistogramName, 0);