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

chrome/browser/android/logo_service.cc

Index: chrome/browser/android/logo_service.cc
diff --git a/chrome/browser/android/logo_service.cc b/chrome/browser/android/logo_service.cc
index ff639514b5eaaccd4bbcef088bc59d9bbf192e91..ba4170c7eb746a80b660d8d200273056ebe20b3e 100644
--- a/chrome/browser/android/logo_service.cc
+++ b/chrome/browser/android/logo_service.cc
@@ -125,7 +125,8 @@ void LogoService::GetLogo(search_provider_logos::LogoObserver* observer) {
       GetGoogleDoodleURL(profile_),
       base::Bind(&search_provider_logos::GoogleParseLogoResponse),
       base::Bind(&search_provider_logos::GoogleAppendQueryparamsToLogoURL),
-      true);
+      true,
+      false);

[Marc Treib, 2016/05/10 08:48:44]

optional nit: You could add comments saying what these are for, like
true /* wants_cta */

[atanasova, 2016/05/10 09:04:55]

Done.

   logo_tracker_->GetLogo(observer);
 }