Android: Don't evict thumbnails for last visible tab on stop

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 0f9ae4ad03bd48c1523a0dc6d50863fa6ccd0b60..5087fdc650556e5319ec8480c58b069b4893ea79 100644
--- a/content/browser/renderer_host/render_widget_host_view_android.cc
+++ b/content/browser/renderer_host/render_widget_host_view_android.cc
@@ -864,7 +864,7 @@ void RenderWidgetHostViewAndroid::CopyFromCompositingSurface(
     const ReadbackRequestCallback& callback,
     const SkColorType preferred_color_type) {
   TRACE_EVENT0("cc", "RenderWidgetHostViewAndroid::CopyFromCompositingSurface");
-  if (!host_ || host_->is_hidden() || !IsSurfaceAvailableForCopy()) {
+  if (!host_ || !IsSurfaceAvailableForCopy()) {
     callback.Run(SkBitmap(), READBACK_SURFACE_UNAVAILABLE);
     return;
   }