Handle per-tab AUTOMATIC_DOWNLOADS setting in DownloadRequestLimiter.

chrome/browser/content_settings/tab_specific_content_settings.h

Index: chrome/browser/content_settings/tab_specific_content_settings.h
diff --git a/chrome/browser/content_settings/tab_specific_content_settings.h b/chrome/browser/content_settings/tab_specific_content_settings.h
index 6cf2dc76229a0d1bc56331f83cb404b2529aaf98..cc28ba199e742fc0b5c0b8b0f50177c73ac131c3 100644
--- a/chrome/browser/content_settings/tab_specific_content_settings.h
+++ b/chrome/browser/content_settings/tab_specific_content_settings.h
@@ -189,9 +189,6 @@ class TabSpecificContentSettings
   // Changes the |content_blocked_| entry for popups.
   void SetPopupsBlocked(bool blocked);
 
-  // Changes the |content_blocked_| entry for downloads.
-  void SetDownloadsBlocked(bool blocked);
-
   // Changes |subresource_filter_enabled_| entry for the Safe Browsing
   // Subresource Filter.
   void SetSubresourceBlocked(bool enabled);