Mac Overlays: Allow SolidColor and Tile quads to be candidates for overlays.

cc/output/gl_renderer.cc

Index: cc/output/gl_renderer.cc
diff --git a/cc/output/gl_renderer.cc b/cc/output/gl_renderer.cc
index 3a488caf73cffb1e29bb7a232ea834e4b9a96496..81c4280288e01946cba32ba044269a49255c6d8d 100644
--- a/cc/output/gl_renderer.cc
+++ b/cc/output/gl_renderer.cc
@@ -3512,13 +3512,13 @@ void GLRenderer::ScheduleOverlays(DrawingFrame* frame) {
   OverlayCandidateList& overlays = frame->overlay_list;
   for (const OverlayCandidate& overlay : overlays) {
     unsigned texture_id = 0;
-    if (overlay.use_output_surface_for_resource) {
+    if (overlay.resource_type == OverlayCandidate::USE_OUTPUT_SURFACE) {
       texture_id = output_surface_->GetOverlayTextureId();
       DCHECK(texture_id);
-    } else {
+    } else if (overlay.resource_type == OverlayCandidate::HAS_RESOURCE) {
       pending_overlay_resources_.push_back(
           make_scoped_ptr(new ResourceProvider::ScopedReadLockGL(
-              resource_provider_, overlay.resource_id)));
+              resource_provider_, overlay.resource.resource_id)));
       texture_id = pending_overlay_resources_.back()->texture_id();
     }