Fix Notifications Icon loading.

android_webview/browser/icon_helper.cc

Index: android_webview/browser/icon_helper.cc
diff --git a/android_webview/browser/icon_helper.cc b/android_webview/browser/icon_helper.cc
index 9690df8f2e861831020663feec6cfcefb2d8c00f..816e05423e1b9683d99d34fcb8a793516dc124b9 100644
--- a/android_webview/browser/icon_helper.cc
+++ b/android_webview/browser/icon_helper.cc
@@ -9,6 +9,7 @@
 #include "base/logging.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/web_contents.h"
+#include "content/public/common/content_constants.h"
 #include "content/public/common/favicon_url.h"
 #include "third_party/skia/include/core/SkBitmap.h"
 
@@ -59,8 +60,11 @@ void IconHelper::DidUpdateFaviconURL(int32 page_id,
         // TODO(acleung): only fetch the URL if favicon downloading is enabled.
         // (currently that is, the app has called WebIconDatabase.open()
         // but we should decouple that setting via a boolean setting)
-        web_contents()->DownloadFavicon(i->icon_url, 0, base::Bind(
-            &IconHelper::DownloadFaviconCallback, base::Unretained(this)));
+        web_contents()->DownloadFavicon(i->icon_url,
+            content::DOWNLOAD_FAVICON,
+            0,
+            base::Bind(
+                &IconHelper::DownloadFaviconCallback, base::Unretained(this)));
         break;
       case content::FaviconURL::TOUCH_ICON:
         if (listener_)