Disable chrome://downloads ui for Android.

chrome/browser/ui/webui/chrome_web_ui_controller_factory.cc

Index: chrome/browser/ui/webui/chrome_web_ui_controller_factory.cc
diff --git a/chrome/browser/ui/webui/chrome_web_ui_controller_factory.cc b/chrome/browser/ui/webui/chrome_web_ui_controller_factory.cc
index 0e8c4bcb0798a299125f21e6e0998d48c3152e0c..c228d87999da52dac53ce71e9ff088d9b0267e19 100644
--- a/chrome/browser/ui/webui/chrome_web_ui_controller_factory.cc
+++ b/chrome/browser/ui/webui/chrome_web_ui_controller_factory.cc
@@ -180,8 +180,6 @@ WebUIFactoryFunction GetWebUIFactoryFunction(content::WebUI* web_ui,
     return &NewWebUI<DevToolsUI>;
   if (url.host() == chrome::kChromeUIDialogHost)
     return &NewWebUI<ConstrainedHtmlUI>;
-  if (url.host() == chrome::kChromeUIDownloadsHost)
-    return &NewWebUI<DownloadsUI>;
   if (url.host() == chrome::kChromeUIExtensionsFrameHost)
     return &NewWebUI<ExtensionsUI>;
   if (url.host() == chrome::kChromeUIFeedbackHost)
@@ -231,7 +229,10 @@ WebUIFactoryFunction GetWebUIFactoryFunction(content::WebUI* web_ui,
    * OS Specific #defines
    ***************************************************************************/
 #if !defined(OS_ANDROID)
-  // Android doesn't use the Options/Options2 pages
+  // Android uses the native download manager.
+  if (url.host() == chrome::kChromeUIDownloadsHost)
+    return &NewWebUI<DownloadsUI>;
+  // Android doesn't use the Options/Options2 pages.
   if (url.host() == chrome::kChromeUISettingsFrameHost)
     return &NewWebUI<options2::OptionsUI>;
   if (url.host() == chrome::kChromeUISettingsHost)
@@ -476,9 +477,6 @@ RefCountedMemory* ChromeWebUIControllerFactory::GetFaviconResourceBytes(
   if (page_url.host() == chrome::kChromeUICrashesHost)
     return CrashesUI::GetFaviconResourceBytes();
 
-  if (page_url.host() == chrome::kChromeUIDownloadsHost)
-    return DownloadsUI::GetFaviconResourceBytes();
-
   if (page_url.host() == chrome::kChromeUIHistoryHost)
     return HistoryUI::GetFaviconResourceBytes();
 
@@ -492,6 +490,10 @@ RefCountedMemory* ChromeWebUIControllerFactory::GetFaviconResourceBytes(
     return FlashUI::GetFaviconResourceBytes();
 
 #if !defined(OS_ANDROID)
+  // Android uses the native download manager
+  if (page_url.host() == chrome::kChromeUIDownloadsHost)
+    return DownloadsUI::GetFaviconResourceBytes();
+
   // Android doesn't use the Options/Options2 pages
   if (page_url.host() == chrome::kChromeUISettingsHost)
     return OptionsUI::GetFaviconResourceBytes();