Revert of Disable baked-in popular sites for iOS.

components/ntp_tiles/popular_sites_impl_unittest.cc

Index: components/ntp_tiles/popular_sites_impl_unittest.cc
diff --git a/components/ntp_tiles/popular_sites_impl_unittest.cc b/components/ntp_tiles/popular_sites_impl_unittest.cc
index 911e7f0457a6b34374efd2fa588d10e856b08c04..661cc2441bdd5f1890c07f4a92bb9d2c2abe3d27 100644
--- a/components/ntp_tiles/popular_sites_impl_unittest.cc
+++ b/components/ntp_tiles/popular_sites_impl_unittest.cc
@@ -60,7 +60,7 @@
 }
 
 size_t GetNumberOfDefaultPopularSitesForPlatform() {
-#if defined(OS_ANDROID)
+#if defined(OS_ANDROID) || defined(OS_IOS)
   return 8ul;
 #else
   return 0ul;
@@ -265,7 +265,7 @@
   std::unique_ptr<PopularSites> popular_sites =
       CreatePopularSites(url_request_context.get());
 
-#if defined(GOOGLE_CHROME_BUILD) && defined(OS_ANDROID)
+#if defined(GOOGLE_CHROME_BUILD) && (defined(OS_ANDROID) || defined(OS_IOS))
   ASSERT_FALSE(popular_sites->sites().empty());
   for (const auto& site : popular_sites->sites()) {
     EXPECT_THAT(site.default_icon_resource, Gt(0));