Force use of and cache render surface.

cc/layers/layer.cc

Index: cc/layers/layer.cc
diff --git a/cc/layers/layer.cc b/cc/layers/layer.cc
index d3100f3daa802322ca072e5be186709b65020bce..07143e4b13cdfb70b5dd927c3636c1fee3bd500b 100644
--- a/cc/layers/layer.cc
+++ b/cc/layers/layer.cc
@@ -88,7 +88,7 @@ Layer::Layer()
       draws_content_(false),
       use_local_transform_for_backface_visibility_(false),
       should_check_backface_visibility_(false),
-      force_render_surface_for_testing_(false),
+      force_render_surface_(false),
       subtree_property_changed_(false),
       may_contain_video_(false),
       is_scroll_clip_layer_(false),
@@ -892,11 +892,11 @@ void Layer::SetTouchEventHandlerRegion(const Region& region) {
   SetNeedsCommit();
 }
 
-void Layer::SetForceRenderSurfaceForTesting(bool force) {
+void Layer::SetForceRenderSurface(bool force) {
   DCHECK(IsPropertyChangeAllowed());
-  if (force_render_surface_for_testing_ == force)
+  if (force_render_surface_ == force)
     return;
-  force_render_surface_for_testing_ = force;
+  force_render_surface_ = force;
   SetPropertyTreesNeedRebuild();
   SetNeedsCommit();
 }