Rearrange Should*Download delegate calls to be more useful and intuitive.

content/shell/shell_download_manager_delegate.cc

Index: content/shell/shell_download_manager_delegate.cc
diff --git a/content/shell/shell_download_manager_delegate.cc b/content/shell/shell_download_manager_delegate.cc
index 3b14c89f3955a7703a60f66ba0d525298cab30b7..d519bd85be3cf4d93337368736b5e6603eeab969 100644
--- a/content/shell/shell_download_manager_delegate.cc
+++ b/content/shell/shell_download_manager_delegate.cc
@@ -152,11 +152,11 @@ bool ShellDownloadManagerDelegate::ShouldOpenFileBasedOnExtension(
   return false;
 }
 
-bool ShellDownloadManagerDelegate::ShouldOpenDownload(DownloadItem* item) {
+bool ShellDownloadManagerDelegate::ShouldCompleteDownload(DownloadItem* item) {
   return true;
 }
 
-bool ShellDownloadManagerDelegate::ShouldCompleteDownload(DownloadItem* item) {
+bool ShellDownloadManagerDelegate::ShouldOpenDownload(DownloadItem* item) {
   return true;
 }