--disable-download-shelf

chrome/browser/ui/browser.cc

 // Copyright 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/ui/browser.h"
 
 #if defined(OS_WIN)
 #include <windows.h>
 #include <shellapi.h>
 #endif  // defined(OS_WIN)
@@ skipping 1237 matching lines @@
   WebContents* source = download->GetWebContents();
   if (source && source->GetController().IsInitialNavigation() &&
       tab_strip_model_->count() > 1 && !download->IsSavePackageDownload()) {
     CloseContents(source);
   }
 
   // Some (app downloads) are not supposed to appear on the shelf.
   if (!DownloadItemModel(download).ShouldShowInShelf())
     return;
 
+  if (CommandLine::ForCurrentProcess()->HasSwitch(

[asanka, 2013/07/24 20:09:57]

Nit: Check this before the ShowShowInShelf() test since that test would be
irrelevant if the shelf is disabled.

+        switches::kDisableDownloadShelf))
+    return;
+
   // GetDownloadShelf creates the download shelf if it was not yet created.
   DownloadShelf* shelf = window()->GetDownloadShelf();
   shelf->AddDownload(download);
 }
 
 ///////////////////////////////////////////////////////////////////////////////
 // Browser, content::WebContentsDelegate implementation:
 
 WebContents* Browser::OpenURLFromTab(WebContents* source,
                                      const OpenURLParams& params) {
@@ skipping 1012 matching lines @@
   if (contents && !allow_js_access) {
     contents->web_contents()->GetController().LoadURL(
         target_url,
         content::Referrer(),
         content::PAGE_TRANSITION_LINK,
         std::string());  // No extra headers.
   }
 
   return contents != NULL;
 }