[Android WebView] Enable spatial navigation / DPAD

android_webview/lib/main/aw_main_delegate.cc

Index: android_webview/lib/main/aw_main_delegate.cc
diff --git a/android_webview/lib/main/aw_main_delegate.cc b/android_webview/lib/main/aw_main_delegate.cc
index 05911dbf36954f23d81d6f3181fd7c5de6ee6fb9..ff7dfbf496be8f86d45f8b5bc5bc5a032b41787f 100644
--- a/android_webview/lib/main/aw_main_delegate.cc
+++ b/android_webview/lib/main/aw_main_delegate.cc
@@ -64,6 +64,14 @@ bool AwMainDelegate::BasicStartupComplete(int* exit_code) {
   // Ganesh backed 2D-Canvas is not yet working and causes crashes.
   cl->AppendSwitch(switches::kDisableAccelerated2dCanvas);
 
+  // File system API not supported (requires some new API; internal bug 6930981)
+  // TODO(joth): export and use switches::kDisableFileSystem
+  cl->AppendSwitch("disable-file-system");
+
+  // Enable D-PAD navigation for application compatibility.
+  // TODO(joth): export and use switches::EnableSpatialNavigation.
+  cl->AppendSwitch("enable-spatial-navigation");
+
   return false;
 }