Add support to download web store promo logos over https.

chrome/browser/web_resource/promo_resource_service.h

Index: chrome/browser/web_resource/promo_resource_service.h
diff --git a/chrome/browser/web_resource/promo_resource_service.h b/chrome/browser/web_resource/promo_resource_service.h
index 23504187e7b43da8373bb7e1ab643afe901f1d30..2cb6a794865c4f209165d32991dfea5f2e85fce2 100644
--- a/chrome/browser/web_resource/promo_resource_service.h
+++ b/chrome/browser/web_resource/promo_resource_service.h
@@ -11,6 +11,8 @@
 #include "chrome/browser/web_resource/web_resource_service.h"
 #include "chrome/common/chrome_version_info.h"
 
+class AppsPromoLogoDownloader;
+class PrefService;
 class Profile;
 
 namespace PromoResourceServiceUtil {
@@ -21,8 +23,6 @@ bool CanShowPromo(Profile* profile);
 
 }  // namespace PromoResourceServiceUtil
 
-class PrefService;
-
 // A PromoResourceService fetches data from a web resource server to be used to
 // dynamically change the appearance of the New Tab Page. For example, it has
 // been used to fetch "tips" to be displayed on the NTP, or to display
@@ -52,6 +52,13 @@ class PromoResourceService
   FRIEND_TEST_ALL_PREFIXES(PromoResourceServiceTest, UnpackWebStoreSignal);
   FRIEND_TEST_ALL_PREFIXES(
       PromoResourceServiceTest, UnpackPartialWebStoreSignal);
+  FRIEND_TEST_ALL_PREFIXES(
+      PromoResourceServiceTest, UnpackWebStoreSignalHttpsLogo);
+  FRIEND_TEST_ALL_PREFIXES(
+      PromoResourceServiceTest, UnpackWebStoreSignalHttpsLogoError);
+  FRIEND_TEST_ALL_PREFIXES(
+      PromoResourceServiceTest, UnpackWebStoreSignalHttpLogo);
+
 
   // Identifies types of Chrome builds for promo targeting.
   enum BuildType {
@@ -202,6 +209,9 @@ class PromoResourceService
   // Overrides the current Chrome release channel for testing purposes.
   chrome::VersionInfo::Channel channel_;
 
+  // A helper that downloads the promo logo.
+  scoped_ptr<AppsPromoLogoDownloader> apps_promo_logo_downloader_;
+
   DISALLOW_COPY_AND_ASSIGN(PromoResourceService);
 };