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

components/search_provider_logos/google_logo_api.h

Index: components/search_provider_logos/google_logo_api.h
diff --git a/components/search_provider_logos/google_logo_api.h b/components/search_provider_logos/google_logo_api.h
index 09b1e7d321d3b3ed18c6f94538aa7b3743d41aea..1db65a6cee32c1f44d9b6a93e8904be565357905 100644
--- a/components/search_provider_logos/google_logo_api.h
+++ b/components/search_provider_logos/google_logo_api.h
@@ -18,7 +18,8 @@ namespace search_provider_logos {
 // doodles.
 GURL GoogleAppendQueryparamsToLogoURL(const GURL& logo_url,
                                       const std::string& fingerprint,
-                                      bool wants_cta);
+                                      bool wants_cta,
+                                      bool transparent = false);

[Marc Treib, 2016/05/09 16:58:21]

We generally don't use default values for arguments in Chromium. You'll have to
either update all call sites, or alternatively add an overload (probably with a
different name). I'd prefer updating the call sites though.

[atanasova, 2016/05/10 08:32:17]

I'll update the code, my only concern is breaking the ios code that uses these
methods.

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

The iOS bots will tell you if anything breaks, and fixing it will be trivial :)
(If anything breaks downstream, then it's the gardener's job to fix it. And,
again, that'll be trivial.)

 
 // Implements ParseLogoResponse, defined in logo_tracker.h, for Google doodles.
 std::unique_ptr<EncodedLogo> GoogleParseLogoResponse(