Simplify DownloadRequestHandle by using WebContentsGetter

content/browser/download/download_create_info.cc

Index: content/browser/download/download_create_info.cc
diff --git a/content/browser/download/download_create_info.cc b/content/browser/download/download_create_info.cc
index 89aeb98c0965c58ad19b93fc3c72a296e8e78a4f..92b15849b37419dad855fd7afb662371a384b49e 100644
--- a/content/browser/download/download_create_info.cc
+++ b/content/browser/download/download_create_info.cc
@@ -30,17 +30,6 @@ DownloadCreateInfo::DownloadCreateInfo()
 
 DownloadCreateInfo::~DownloadCreateInfo() {}
 
-std::string DownloadCreateInfo::DebugString() const {
-  return base::StringPrintf(
-      "{"
-      " download_id = %u"
-      " url = \"%s\""
-      " request_handle = %s"
-      " total_bytes = %" PRId64 " }",
-      download_id, url().spec().c_str(), request_handle->DebugString().c_str(),
-      total_bytes);
-}
-
 const GURL& DownloadCreateInfo::url() const {
   return url_chain.empty() ? GURL::EmptyGURL() : url_chain.back();
 }