Android: Set browser offscreen ctx type for stats

content/browser/renderer_host/render_widget_host_view_android.cc

Index: content/browser/renderer_host/render_widget_host_view_android.cc
diff --git a/content/browser/renderer_host/render_widget_host_view_android.cc b/content/browser/renderer_host/render_widget_host_view_android.cc
index b846d7633c0cd8f0805894354351b1352bcc98e3..abdb9eba431b6d22f2f20412fe2d875069cc7470 100644
--- a/content/browser/renderer_host/render_widget_host_view_android.cc
+++ b/content/browser/renderer_host/render_widget_host_view_android.cc
@@ -211,6 +211,7 @@ GLHelperHolder::CreateContext3D() {
           0,  // offscreen
           url, gpu_channel_host.get(), attrs, lose_context_when_out_of_memory,
           limits, nullptr));
+  context->SetContextType(BROWSER_OFFSCREEN_MAINTHREAD_CONTEXT);
   if (context->InitializeOnCurrentThread()) {
     context->traceBeginCHROMIUM(
         "gpu_toplevel",