Enable LoadingWithMojo on Android

Bug: 603396, 703483
Change-Id: Ib1c9a03e3b4820d6f89c4ffe63f99f0baac6090a
Reviewed-on: https://chromium-review.googlesource.com/746541Reviewed-by: Kinuko Yasuda <kinuko@chromium.org>
Reviewed-by: John Abd-El-Malek <jam@chromium.org>
Commit-Queue: Yutaka Hirano <yhirano@chromium.org>
Cr-Commit-Position: refs/heads/master@{#512835}

content/public/common/content_features.cc

@@ -138,14 +138,8 @@ const base::Feature kLazyParseCSS{"LazyParseCSS",
                                   base::FEATURE_DISABLED_BY_DEFAULT};
 
 // Use Mojo IPC for resource loading.
-const base::Feature kLoadingWithMojo {
-  "LoadingWithMojo",
-#if defined(OS_ANDROID)
-      base::FEATURE_DISABLED_BY_DEFAULT
-#else
-      base::FEATURE_ENABLED_BY_DEFAULT
-#endif
-};
+const base::Feature kLoadingWithMojo{"LoadingWithMojo",
+                                     base::FEATURE_ENABLED_BY_DEFAULT};
 
 // Enables the memory coordinator.
 // WARNING: