Don't reject overlay candidates for premultiplied alpha.

cc/output/overlay_unittest.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 <stddef.h>
 
 #include <utility>
 
 #include "base/memory/ptr_util.h"
 #include "cc/base/region.h"
@@ skipping 504 matching lines @@
                              pass->shared_quad_state_list.back(), pass.get());
 
   // Check for potential candidates.
   OverlayCandidateList candidate_list;
   overlay_processor_->ProcessForOverlays(resource_provider_.get(), pass.get(),
                                          &candidate_list, nullptr,
                                          &damage_rect_);
   EXPECT_EQ(1U, candidate_list.size());
 }
 
-TEST_F(SingleOverlayOnTopTest, RejectPremultipliedAlpha) {
-  std::unique_ptr<RenderPass> pass = CreateRenderPass();
-  TextureDrawQuad* quad =
-      CreateFullscreenCandidateQuad(resource_provider_.get(),
-                                    pass->shared_quad_state_list.back(),
-                                    pass.get());
-  quad->premultiplied_alpha = true;
-
-  OverlayCandidateList candidate_list;
-  overlay_processor_->ProcessForOverlays(resource_provider_.get(), pass.get(),
-                                         &candidate_list, nullptr,
-                                         &damage_rect_);
-  EXPECT_EQ(0U, candidate_list.size());
-}
-
 TEST_F(SingleOverlayOnTopTest, RejectBlending) {
   std::unique_ptr<RenderPass> pass = CreateRenderPass();
   TextureDrawQuad* quad =
       CreateFullscreenCandidateQuad(resource_provider_.get(),
                                     pass->shared_quad_state_list.back(),
                                     pass.get());
   quad->needs_blending = true;
 
   OverlayCandidateList candidate_list;
   overlay_processor_->ProcessForOverlays(resource_provider_.get(), pass.get(),
@@ skipping 1098 matching lines @@
 
   ReturnResourceInUseQuery(resource2);
   ReturnResourceInUseQuery(resource3);
   EXPECT_FALSE(resource_provider_->InUseByConsumer(resource1));
   EXPECT_FALSE(resource_provider_->InUseByConsumer(resource2));
   EXPECT_FALSE(resource_provider_->InUseByConsumer(resource3));
 }
 
 }  // namespace
 }  // namespace cc