Migrate WebVR Cardboard implementation to GVR

content/public/android/BUILD.gn

Index: content/public/android/BUILD.gn
diff --git a/content/public/android/BUILD.gn b/content/public/android/BUILD.gn
index c634ed9ce4e9064cb7f0f33f01490e83ff4df00b..30fe284c1ea14646f83f286fd226c5f858001da1 100644
--- a/content/public/android/BUILD.gn
+++ b/content/public/android/BUILD.gn
@@ -40,7 +40,6 @@ android_library("content_java") {
     "//device/usb:java",
     "//device/vibration:mojo_bindings_java",
     "//device/vibration/android:vibration_manager_android",
-    "//device/vr:java",
     "//media/base/android:media_java",
     "//media/capture/content/android:screen_capture_java",
     "//media/capture/video/android:capture_java",
@@ -58,6 +57,10 @@ android_library("content_java") {
     #"//content:content_common",
   ]
 
+  if (enable_webvr) {
+    deps += [ "//device/vr:java" ]
+  }
+
   srcjar_deps = [
     ":common_aidl",
     ":content_public_android_java_enums_srcjar",