Enable magic window mode with new Gvr

device/vr/BUILD.gn

Index: device/vr/BUILD.gn
diff --git a/device/vr/BUILD.gn b/device/vr/BUILD.gn
index 860b4881ef3c6bf58d8bd54b8a6def9fd6ffc6e4..317c8989c25dc8ef1a024fa6a9724ac483252b5a 100644
--- a/device/vr/BUILD.gn
+++ b/device/vr/BUILD.gn
@@ -45,7 +45,6 @@ component("vr") {
     ]
 
     deps += [
-      ":jni_headers",
       "//device/gamepad",
       "//third_party/WebKit/public:blink_headers",
       "//third_party/gvr-android-sdk:libgvr",
@@ -79,22 +78,3 @@ mojom("mojo_bindings") {
 
   use_new_wrapper_types = false
 }
-
-if (is_android) {
-  java_sources_needing_jni =
-      [ "android/java/src/org/chromium/device/vr/GvrDeviceProvider.java" ]
-
-  generate_jni("jni_headers") {
-    sources = java_sources_needing_jni
-    jni_package = "vr"
-  }
-
-  android_library("java") {
-    java_files = java_sources_needing_jni
-    deps = [
-      "//base:base_java",
-      "//third_party/android_protobuf:protobuf_nano_javalib",
-      "//third_party/gvr-android-sdk:gvr_common_java",
-    ]
-  }
-}