Introduce dedicated enum value for icons from Web Manifests

chrome/browser/favicon/content_favicon_driver_browsertest.cc

Index: chrome/browser/favicon/content_favicon_driver_browsertest.cc
diff --git a/chrome/browser/favicon/content_favicon_driver_browsertest.cc b/chrome/browser/favicon/content_favicon_driver_browsertest.cc
index c62373483b870ff2a50d1c1580d13110ff893a2e..88b785267c9a80cb6675a75ce538fabed09c0ae7 100644
--- a/chrome/browser/favicon/content_favicon_driver_browsertest.cc
+++ b/chrome/browser/favicon/content_favicon_driver_browsertest.cc
@@ -279,7 +279,11 @@ IN_PROC_BROWSER_TEST_F(ContentFaviconDriverTest, LoadIconFromWebManifest) {
       ui_test_utils::BROWSER_TEST_NONE);
   waiter.Wait();
 
+#if defined(OS_ANDROID) || defined(OS_IOS)
   EXPECT_TRUE(delegate->was_requested());
+#else
+  EXPECT_FALSE(delegate->was_requested());
+#endif
 }
 
 // Test that loading a page that contains a Web Manifest without icons and a