Use ResourceRequestInfo::GetWebContents in DownloadRequestLimiter

chrome/browser/download/download_request_limiter.h

Index: chrome/browser/download/download_request_limiter.h
diff --git a/chrome/browser/download/download_request_limiter.h b/chrome/browser/download/download_request_limiter.h
index 50ea982aa3adc519927d826ed870d3fdb405391b..f2f085a88cb15441a99af669760ff82ccd76fce0 100644
--- a/chrome/browser/download/download_request_limiter.h
+++ b/chrome/browser/download/download_request_limiter.h
@@ -16,6 +16,7 @@
 #include "components/content_settings/core/common/content_settings.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
+#include "content/public/browser/resource_request_info.h"
 #include "content/public/browser/web_contents_observer.h"
 
 class HostContentSettingsMap;
@@ -182,11 +183,12 @@ class DownloadRequestLimiter
   DownloadStatus GetDownloadStatus(content::WebContents* tab);
 
   // Check if download can proceed and notifies the callback on UI thread.
-  void CanDownload(int render_process_host_id,
-                   int render_view_id,
-                   const GURL& url,
-                   const std::string& request_method,
-                   const Callback& callback);
+  void CanDownload(
+      const content::ResourceRequestInfo::WebContentsGetterOnUIThread&
+          web_contents_getter,
+      const GURL& url,
+      const std::string& request_method,
+      const Callback& callback);
 
  private:
   FRIEND_TEST_ALL_PREFIXES(DownloadTest, DownloadResourceThrottleCancels);
@@ -215,11 +217,12 @@ class DownloadRequestLimiter
                        const Callback& callback);
 
   // Invoked when decision to download has been made.
-  void OnCanDownloadDecided(int render_process_host_id,
-                            int render_view_id,
-                            const std::string& request_method,
-                            const Callback& orig_callback,
-                            bool allow);
+  void OnCanDownloadDecided(
+      const content::ResourceRequestInfo::WebContentsGetterOnUIThread&
+          web_contents_getter,
+      const std::string& request_method,
+      const Callback& orig_callback,
+      bool allow);
 
   // Removes the specified TabDownloadState from the internal map and deletes
   // it. This has the effect of resetting the status for the tab to