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

components/search_provider_logos/logo_tracker_unittest.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "components/search_provider_logos/logo_tracker.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <vector>
@@ skipping 410 matching lines @@
   GURL url_with_fp = GoogleAppendQueryparamsToLogoURL(
       GURL("http://logourl.com/path"), "abc123", true);
   EXPECT_EQ("http://logourl.com/path?async=es_dfp:abc123,cta:1",
             url_with_fp.spec());
 
   url_with_fp = GoogleAppendQueryparamsToLogoURL(
       GURL("http://logourl.com/?a=b"), "", true);
   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));
   logo_cache_->ExpectSetCachedLogo(&logo);
   observer_.ExpectFreshLogo(&logo);
   GetLogo();
 }
 
 TEST_F(LogoTrackerTest, EmptyCacheAndFailedDownload) {
   EXPECT_CALL(*logo_cache_, UpdateCachedLogoMetadata(_)).Times(0);
@@ skipping 298 matching lines @@
   MockLogoObserver listener2;
   listener2.ExpectFreshLogo(&logo);
   logo_tracker_->GetLogo(&listener2);
 
   base::RunLoop().RunUntilIdle();
 }
 
 }  // namespace
 
 }  // namespace search_provider_logos