Defaulting all downloads to go through Chrome network stack

chrome/app/generated_resources.grd

Index: chrome/app/generated_resources.grd
diff --git a/chrome/app/generated_resources.grd b/chrome/app/generated_resources.grd
index 9ae01c4ec4c779bda2bc224a7fad1563ad25d488..29056cdd6e0754456af7b93d32dae3137fa2a191 100644
--- a/chrome/app/generated_resources.grd
+++ b/chrome/app/generated_resources.grd
@@ -5878,12 +5878,6 @@ Keep your key file in a safe place. You will need it to create new versions of y
         <message name="IDS_FLAGS_ENABLE_READ_IT_LATER_IN_MENU_DESCRIPTION" desc="Description for the flag to show read it later in menu.">
           Allow "read it later" to show in the menu, and users can select it to save the tab to Chrome in background.
         </message>
-        <message name="IDS_FLAGS_ENABLE_SYSTEM_DOWNLOAD_MANAGER_NAME" desc="Title for the flag to use system download manager.">
-          Use system download manager when applicable.
-        </message>
-        <message name="IDS_FLAGS_ENABLE_SYSTEM_DOWNLOAD_MANAGER_DESCRIPTION" desc="Description for the flag to use system download manager.">
-          Allow downloads to be handled by the system download manager when applicable.
-        </message>
         <message name="IDS_FLAGS_MEDIA_DOCUMENT_DOWNLOAD_BUTTON_NAME" desc="Title for the flag to enable the download button on MediaDocument.">
           Download button when opening a page with media url.
         </message>