Move OpenItem/ShowItemInFolder from ContentBrowserClient to DownloadManagerDelegate

chrome/browser/download/chrome_download_manager_delegate.cc

Index: chrome/browser/download/chrome_download_manager_delegate.cc
diff --git a/chrome/browser/download/chrome_download_manager_delegate.cc b/chrome/browser/download/chrome_download_manager_delegate.cc
index 1c9dd5f9242c1a9b02815c7cc8c83869fe4d0075..90770c267ebd572d36b6a7b0c45470072103e44f 100644
--- a/chrome/browser/download/chrome_download_manager_delegate.cc
+++ b/chrome/browser/download/chrome_download_manager_delegate.cc
@@ -33,6 +33,7 @@
 #include "chrome/browser/history/history.h"
 #include "chrome/browser/history/history_service_factory.h"
 #include "chrome/browser/intents/web_intents_util.h"
+#include "chrome/browser/platform_util.h"
 #include "chrome/browser/prefs/pref_service.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/safe_browsing/safe_browsing_service.h"
@@ -523,6 +524,15 @@ void ChromeDownloadManagerDelegate::ChooseSavePath(
 #endif
 }
 
+void ChromeDownloadManagerDelegate::OpenDownload(DownloadItem* download) {
+  platform_util::OpenItem(download->GetFullPath());
+}
+
+void ChromeDownloadManagerDelegate::ShowDownloadInShell(
+    DownloadItem* download) {
+  platform_util::ShowItemInFolder(download->GetFullPath());
+}
+
 void ChromeDownloadManagerDelegate::ClearLastDownloadPath() {
   last_download_path_.clear();
 }