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

cc/output/overlay_strategy_single_on_top.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "cc/output/overlay_strategy_single_on_top.h"
 
 #include "cc/base/math_util.h"
 #include "cc/output/overlay_candidate_validator.h"
 #include "cc/quads/draw_quad.h"
 
 namespace cc {
 
 OverlayStrategySingleOnTop::OverlayStrategySingleOnTop(
     OverlayCandidateValidator* capability_checker)
     : capability_checker_(capability_checker) {
   DCHECK(capability_checker);
 }
 
 OverlayStrategySingleOnTop::~OverlayStrategySingleOnTop() {}
 
 bool OverlayStrategySingleOnTop::Attempt(ResourceProvider* resource_provider,
                                          RenderPassList* render_passes,
                                          OverlayCandidateList* candidate_list) {
   QuadList* quad_list = &render_passes->back()->quad_list;
   for (auto it = quad_list->begin(); it != quad_list->end(); ++it) {
     OverlayCandidate candidate;
-    if (OverlayCandidate::FromDrawQuad(resource_provider, *it, &candidate) &&
+    if (capability_checker_->IsSupportedQuad(*it) &&
+        OverlayCandidate::FromDrawQuad(resource_provider, *it, &candidate) &&
         TryOverlay(quad_list, candidate_list, candidate, it)) {
       return true;
     }
   }
 
   return false;
 }
 
 bool OverlayStrategySingleOnTop::TryOverlay(
     QuadList* quad_list,
@@ skipping 23 matching lines @@
   if (new_candidate_list.back().overlay_handled) {
     quad_list->EraseAndInvalidateAllPointers(candidate_iterator);
     candidate_list->swap(new_candidate_list);
     return true;
   }
 
   return false;
 }
 
 }  // namespace cc