cc: Reject non-opaque fullscreen overlay candidates.

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 <vector>
 
 #include "base/memory/ptr_util.h"
@@ skipping 455 matching lines @@
 
   RenderPass* main_pass = pass.get();
   // Check that all the quads are gone.
   EXPECT_EQ(0U, main_pass->quad_list.size());
   // Check that we have only one overlay.
   EXPECT_EQ(1U, candidate_list.size());
   // Check that the right resource id got extracted.
   EXPECT_EQ(original_resource_id, candidate_list.front().resource_id);
 }
 
+TEST_F(FullscreenOverlayTest, AlphaFail) {
+  std::unique_ptr<RenderPass> pass = CreateRenderPass();
+  TextureDrawQuad* original_quad = CreateFullscreenCandidateQuad(
+      resource_provider_.get(), pass->shared_quad_state_list.back(),
+      pass.get());
+  original_quad->opaque_rect = gfx::Rect(0, 0, 0, 0);
+
+  // Check for potential candidates.
+  OverlayCandidateList candidate_list;
+  RenderPassFilterList render_pass_filters;
+  RenderPassFilterList render_pass_background_filters;
+  overlay_processor_->ProcessForOverlays(
+      resource_provider_.get(), pass.get(), render_pass_filters,
+      render_pass_background_filters, &candidate_list, nullptr, &damage_rect_,
+      &content_bounds_);
+
+  RenderPass* main_pass = pass.get();
+  // Check that all the quads are gone.
+  EXPECT_EQ(1U, main_pass->quad_list.size());
+  // Check that we have only one overlay.
+  EXPECT_EQ(0U, candidate_list.size());
+}
+
 TEST_F(FullscreenOverlayTest, ResourceSizeInPixelsFail) {
   std::unique_ptr<RenderPass> pass = CreateRenderPass();
   TextureDrawQuad* original_quad = CreateFullscreenCandidateQuad(
       resource_provider_.get(), pass->shared_quad_state_list.back(),
       pass.get());
   original_quad->set_resource_size_in_pixels(gfx::Size(64, 64));
 
   // Check for potential candidates.
   OverlayCandidateList candidate_list;
   RenderPassFilterList render_pass_filters;
@@ skipping 1805 matching lines @@
                  kOverlayRect, render_pass_id_, 2, gfx::RectF(), gfx::Size(),
                  gfx::Vector2dF(1, 1), gfx::PointF(), gfx::RectF());
   }
 
   ProcessForOverlays();
   EXPECT_EQ(0U, ca_layer_list_.size());
 }
 
 }  // namespace
 }  // namespace cc