Implement our own GLThread for VR Shell.

ui/android/java/src/org/chromium/ui/gl/SurfaceTexturePlatformWrapper.java

Index: ui/android/java/src/org/chromium/ui/gl/SurfaceTexturePlatformWrapper.java
diff --git a/ui/android/java/src/org/chromium/ui/gl/SurfaceTexturePlatformWrapper.java b/ui/android/java/src/org/chromium/ui/gl/SurfaceTexturePlatformWrapper.java
index f2b5f525dd7ef64afd56ff672538703ca91eb19e..13642effd50d74d3f3f9c7b1a566493917b12c50 100644
--- a/ui/android/java/src/org/chromium/ui/gl/SurfaceTexturePlatformWrapper.java
+++ b/ui/android/java/src/org/chromium/ui/gl/SurfaceTexturePlatformWrapper.java
@@ -65,4 +65,9 @@ class SurfaceTexturePlatformWrapper {
     private static void release(SurfaceTexture surfaceTexture) {
         surfaceTexture.release();
     }
+
+    @CalledByNative
+    private static void setDefaultBufferSize(SurfaceTexture surfaceTexture, int width, int height) {
+        surfaceTexture.setDefaultBufferSize(width, height);
+    }
 }