Adding a parameter that will be used to request a transparent doodle.

components/search_provider_logos/logo_tracker_unittest.cc

Index: components/search_provider_logos/logo_tracker_unittest.cc
diff --git a/components/search_provider_logos/logo_tracker_unittest.cc b/components/search_provider_logos/logo_tracker_unittest.cc
index 528cfecc4441405f90535bf53c8db44670d2956a..b96f508d3f3f63aadcb548ebde0f80caa5913df6 100644
--- a/components/search_provider_logos/logo_tracker_unittest.cc
+++ b/components/search_provider_logos/logo_tracker_unittest.cc
@@ -428,6 +428,17 @@ TEST_F(LogoTrackerTest, CTAURLHasComma) {
   EXPECT_EQ("http://logourl.com/?a=b&async=cta:1", url_with_fp.spec());
 }
 
+TEST_F(LogoTrackerTest, CTATransparentHasCommas) {
+  GURL url_with_fp = GoogleAppendQueryparamsToLogoURL(
+      GURL("http://logourl.com/path"), "abc123", true, true);
+  EXPECT_EQ("http://logourl.com/path?async=es_dfp:abc123,cta:1,transp:1",
+            url_with_fp.spec());
+
+  url_with_fp = GoogleAppendQueryparamsToLogoURL(
+      GURL("http://logourl.com/?a=b"), "", true, true);
+  EXPECT_EQ("http://logourl.com/?a=b&async=cta:1,transp:1", url_with_fp.spec());
+}
+
 TEST_F(LogoTrackerTest, DownloadAndCacheLogo) {
   Logo logo = GetSampleLogo(logo_url_, test_clock_->Now());
   SetServerResponse(ServerResponse(logo));