Use SwapBuffersWithBounds on Chromecast

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"
 #include "cc/base/region.h"
 #include "cc/output/ca_layer_overlay.h"
 #include "cc/output/filter_operation.h"
 #include "cc/output/gl_renderer.h"
 #include "cc/output/output_surface.h"
 #include "cc/output/output_surface_client.h"
 #include "cc/output/output_surface_frame.h"
 #include "cc/output/overlay_candidate_validator.h"
 #include "cc/output/overlay_processor.h"
 #include "cc/output/overlay_strategy_fullscreen.h"
 #include "cc/output/overlay_strategy_single_on_top.h"
 #include "cc/output/overlay_strategy_underlay.h"
+#include "cc/output/overlay_strategy_underlay_cast.h"
 #include "cc/quads/render_pass.h"
 #include "cc/quads/render_pass_draw_quad.h"
 #include "cc/quads/solid_color_draw_quad.h"
 #include "cc/quads/stream_video_draw_quad.h"
 #include "cc/quads/texture_draw_quad.h"
 #include "cc/resources/resource_provider.h"
 #include "cc/resources/texture_mailbox.h"
 #include "cc/test/fake_output_surface_client.h"
 #include "cc/test/fake_resource_provider.h"
 #include "cc/test/geometry_test_utils.h"
@@ skipping 90 matching lines @@
   }
 };
 
 class UnderlayOverlayValidator : public SingleOverlayValidator {
  public:
   void GetStrategies(OverlayProcessor::StrategyList* strategies) override {
     strategies->push_back(base::MakeUnique<OverlayStrategyUnderlay>(this));
   }
 };
 
+class UnderlayCastOverlayValidator : public SingleOverlayValidator {
+ public:
+  void GetStrategies(OverlayProcessor::StrategyList* strategies) override {
+    strategies->push_back(base::MakeUnique<OverlayStrategyUnderlayCast>(this));
+  }
+};
+
 class DefaultOverlayProcessor : public OverlayProcessor {
  public:
   explicit DefaultOverlayProcessor(OutputSurface* surface);
   size_t GetStrategyCount();
 };
 
 DefaultOverlayProcessor::DefaultOverlayProcessor(OutputSurface* surface)
     : OverlayProcessor(surface) {
 }
 
@@ skipping 152 matching lines @@
 
 void CreateOpaqueQuadAt(ResourceProvider* resource_provider,
                         const SharedQuadState* shared_quad_state,
                         RenderPass* render_pass,
                         const gfx::Rect& rect) {
   SolidColorDrawQuad* color_quad =
       render_pass->CreateAndAppendDrawQuad<SolidColorDrawQuad>();
   color_quad->SetNew(shared_quad_state, rect, rect, SK_ColorBLACK, false);
 }
 
+void CreateOpaqueQuadAt(ResourceProvider* resource_provider,
+                        const SharedQuadState* shared_quad_state,
+                        RenderPass* render_pass,
+                        const gfx::Rect& rect,
+                        SkColor color) {
+  SolidColorDrawQuad* color_quad =
+      render_pass->CreateAndAppendDrawQuad<SolidColorDrawQuad>();
+  color_quad->SetNew(shared_quad_state, rect, rect, color, false);
+}
+
 void CreateFullscreenOpaqueQuad(ResourceProvider* resource_provider,
                                 const SharedQuadState* shared_quad_state,
                                 RenderPass* render_pass) {
   CreateOpaqueQuadAt(resource_provider, shared_quad_state, render_pass,
                      render_pass->output_rect);
 }
 
 static void CompareRenderPassLists(const RenderPassList& expected_list,
                                    const RenderPassList& actual_list) {
   EXPECT_EQ(expected_list.size(), actual_list.size());
@@ skipping 43 matching lines @@
     overlay_processor_->Initialize();
   }
 
   scoped_refptr<TestContextProvider> provider_;
   std::unique_ptr<OverlayOutputSurface> output_surface_;
   FakeOutputSurfaceClient client_;
   std::unique_ptr<SharedBitmapManager> shared_bitmap_manager_;
   std::unique_ptr<ResourceProvider> resource_provider_;
   std::unique_ptr<OverlayProcessor> overlay_processor_;
   gfx::Rect damage_rect_;
+  std::vector<gfx::Rect> content_bounds_;
 };
 
-typedef OverlayTest<FullscreenOverlayValidator> FullscreenOverlayTest;
-typedef OverlayTest<SingleOnTopOverlayValidator> SingleOverlayOnTopTest;
-typedef OverlayTest<UnderlayOverlayValidator> UnderlayTest;
-typedef OverlayTest<CALayerValidator> CALayerOverlayTest;
+using FullscreenOverlayTest = OverlayTest<FullscreenOverlayValidator>;
+using SingleOverlayOnTopTest = OverlayTest<SingleOnTopOverlayValidator>;
+using UnderlayTest = OverlayTest<UnderlayOverlayValidator>;
+using UnderlayCastTest = OverlayTest<UnderlayCastOverlayValidator>;
+using CALayerOverlayTest = OverlayTest<CALayerValidator>;
 
 TEST(OverlayTest, NoOverlaysByDefault) {
   scoped_refptr<TestContextProvider> provider = TestContextProvider::Create();
   OverlayOutputSurface output_surface(provider);
   EXPECT_EQ(NULL, output_surface.GetOverlayCandidateValidator());
 
   output_surface.SetOverlayCandidateValidator(new SingleOverlayValidator);
   EXPECT_TRUE(output_surface.GetOverlayCandidateValidator() != NULL);
 }
 
@@ skipping 26 matching lines @@
   // Add something behind it.
   CreateFullscreenOpaqueQuad(resource_provider_.get(),
                              pass->shared_quad_state_list.back(), pass.get());
 
   // 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_);
+      render_pass_background_filters, &candidate_list, nullptr, &damage_rect_,
+      &content_bounds_);
   ASSERT_EQ(1U, candidate_list.size());
 
   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, 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;
   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_);
+      render_pass_background_filters, &candidate_list, nullptr, &damage_rect_,
+      &content_bounds_);
   ASSERT_EQ(0U, candidate_list.size());
 
   RenderPass* main_pass = pass.get();
   // Check that the quad is not gone.
   EXPECT_EQ(1U, main_pass->quad_list.size());
 }
 
 TEST_F(FullscreenOverlayTest, OnTopFail) {
   std::unique_ptr<RenderPass> pass = CreateRenderPass();
 
   // Add something in front of it.
   CreateOpaqueQuadAt(resource_provider_.get(),
                      pass->shared_quad_state_list.back(), pass.get(),
                      kOverlayTopLeftRect);
 
   CreateFullscreenCandidateQuad(resource_provider_.get(),
                                 pass->shared_quad_state_list.back(),
                                 pass.get());
 
   // 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_);
+      render_pass_background_filters, &candidate_list, nullptr, &damage_rect_,
+      &content_bounds_);
   ASSERT_EQ(0U, candidate_list.size());
 
   RenderPass* main_pass = pass.get();
   // Check that the 2 quads are not gone.
   EXPECT_EQ(2U, main_pass->quad_list.size());
 }
 
 TEST_F(FullscreenOverlayTest, NotCoveringFullscreenFail) {
   std::unique_ptr<RenderPass> pass = CreateRenderPass();
   gfx::Rect inset_rect = pass->output_rect;
   inset_rect.Inset(0, 1, 0, 1);
   CreateCandidateQuadAt(resource_provider_.get(),
                         pass->shared_quad_state_list.back(), pass.get(),
                         inset_rect);
 
   // 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_);
+      render_pass_background_filters, &candidate_list, nullptr, &damage_rect_,
+      &content_bounds_);
   ASSERT_EQ(0U, candidate_list.size());
 
   RenderPass* main_pass = pass.get();
   // Check that the quad is not gone.
   EXPECT_EQ(1U, main_pass->quad_list.size());
 }
 
 TEST_F(FullscreenOverlayTest, RemoveFullscreenQuadFromQuadList) {
   std::unique_ptr<RenderPass> pass = CreateRenderPass();
 
   // Add something in front of it that is fully transparent.
   pass->shared_quad_state_list.back()->opacity = 0.0f;
   CreateOpaqueQuadAt(resource_provider_.get(),
                      pass->shared_quad_state_list.back(), pass.get(),
                      kOverlayTopLeftRect);
 
   SharedQuadState* shared_state = pass->CreateAndAppendSharedQuadState();
   shared_state->opacity = 1.f;
   CreateFullscreenCandidateQuad(resource_provider_.get(),
                                 pass->shared_quad_state_list.back(),
                                 pass.get());
 
   // 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_);
+      render_pass_background_filters, &candidate_list, nullptr, &damage_rect_,
+      &content_bounds_);
   ASSERT_EQ(1U, candidate_list.size());
 
   // Check that the fullscreen quad is gone.
   for (const DrawQuad* quad : pass->quad_list) {
     EXPECT_NE(pass->output_rect, quad->rect);
   }
 }
 
 TEST_F(SingleOverlayOnTopTest, SuccessfulOverlay) {
   std::unique_ptr<RenderPass> pass = CreateRenderPass();
   TextureDrawQuad* original_quad =
       CreateFullscreenCandidateQuad(resource_provider_.get(),
                                     pass->shared_quad_state_list.back(),
                                     pass.get());
   unsigned original_resource_id = original_quad->resource_id();
 
   // Add something behind it.
   CreateFullscreenOpaqueQuad(resource_provider_.get(),
                              pass->shared_quad_state_list.back(), pass.get());
   CreateFullscreenOpaqueQuad(resource_provider_.get(),
                              pass->shared_quad_state_list.back(), pass.get());
 
   // 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_);
+      render_pass_background_filters, &candidate_list, nullptr, &damage_rect_,
+      &content_bounds_);
   ASSERT_EQ(1U, candidate_list.size());
 
   RenderPass* main_pass = pass.get();
   // Check that the quad is gone.
   EXPECT_EQ(2U, main_pass->quad_list.size());
   const QuadList& quad_list = main_pass->quad_list;
   for (QuadList::ConstBackToFrontIterator it = quad_list.BackToFrontBegin();
        it != quad_list.BackToFrontEnd();
        ++it) {
     EXPECT_NE(DrawQuad::TEXTURE_CONTENT, it->material);
@@ skipping 24 matching lines @@
   output_surface_plane.display_rect = gfx::RectF(kOverlayRect);
   output_surface_plane.quad_rect_in_target_space = kOverlayRect;
   output_surface_plane.use_output_surface_for_resource = true;
   output_surface_plane.overlay_handled = true;
   candidate_list.push_back(output_surface_plane);
 
   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_);
+      render_pass_background_filters, &candidate_list, nullptr, &damage_rect_,
+      &content_bounds_);
   DCHECK(damage_rect_.IsEmpty());
 }
 
 TEST_F(SingleOverlayOnTopTest, NoCandidates) {
   std::unique_ptr<RenderPass> pass = CreateRenderPass();
   CreateFullscreenOpaqueQuad(resource_provider_.get(),
                              pass->shared_quad_state_list.back(), pass.get());
   CreateFullscreenOpaqueQuad(resource_provider_.get(),
                              pass->shared_quad_state_list.back(), pass.get());
 
   RenderPassList pass_list;
   pass_list.push_back(std::move(pass));
 
   RenderPassList original_pass_list;
   RenderPass::CopyAll(pass_list, &original_pass_list);
 
   OverlayCandidateList candidate_list;
   RenderPassFilterList render_pass_filters;
   RenderPassFilterList render_pass_background_filters;
   overlay_processor_->ProcessForOverlays(
       resource_provider_.get(), pass_list.back().get(), render_pass_filters,
-      render_pass_background_filters, &candidate_list, nullptr, &damage_rect_);
+      render_pass_background_filters, &candidate_list, nullptr, &damage_rect_,
+      &content_bounds_);
   EXPECT_EQ(0U, candidate_list.size());
   // There should be nothing new here.
   CompareRenderPassLists(pass_list, original_pass_list);
 }
 
 TEST_F(SingleOverlayOnTopTest, OccludedCandidates) {
   std::unique_ptr<RenderPass> pass = CreateRenderPass();
   CreateFullscreenOpaqueQuad(resource_provider_.get(),
                              pass->shared_quad_state_list.back(), pass.get());
   CreateFullscreenOpaqueQuad(resource_provider_.get(),
                              pass->shared_quad_state_list.back(), pass.get());
 
   CreateFullscreenCandidateQuad(resource_provider_.get(),
                                 pass->shared_quad_state_list.back(),
                                 pass.get());
 
   RenderPassList pass_list;
   pass_list.push_back(std::move(pass));
 
   RenderPassList original_pass_list;
   RenderPass::CopyAll(pass_list, &original_pass_list);
 
   OverlayCandidateList candidate_list;
   RenderPassFilterList render_pass_filters;
   RenderPassFilterList render_pass_background_filters;
   overlay_processor_->ProcessForOverlays(
       resource_provider_.get(), pass_list.back().get(), render_pass_filters,
-      render_pass_background_filters, &candidate_list, nullptr, &damage_rect_);
+      render_pass_background_filters, &candidate_list, nullptr, &damage_rect_,
+      &content_bounds_);
   EXPECT_EQ(0U, candidate_list.size());
   // There should be nothing new here.
   CompareRenderPassLists(pass_list, original_pass_list);
 }
 
 // Test with multiple render passes.
 TEST_F(SingleOverlayOnTopTest, MultipleRenderPasses) {
   std::unique_ptr<RenderPass> pass = CreateRenderPass();
   CreateFullscreenCandidateQuad(resource_provider_.get(),
                                 pass->shared_quad_state_list.back(),
                                 pass.get());
 
   // Add something behind it.
   CreateFullscreenOpaqueQuad(resource_provider_.get(),
                              pass->shared_quad_state_list.back(), pass.get());
   CreateFullscreenOpaqueQuad(resource_provider_.get(),
                              pass->shared_quad_state_list.back(), pass.get());
 
   // 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_);
+      render_pass_background_filters, &candidate_list, nullptr, &damage_rect_,
+      &content_bounds_);
   EXPECT_EQ(1U, 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;
   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_);
+      render_pass_background_filters, &candidate_list, nullptr, &damage_rect_,
+      &content_bounds_);
   EXPECT_EQ(0U, candidate_list.size());
 }
 
 TEST_F(SingleOverlayOnTopTest, RejectBackgroundColor) {
   std::unique_ptr<RenderPass> pass = CreateRenderPass();
   TextureDrawQuad* quad =
       CreateFullscreenCandidateQuad(resource_provider_.get(),
                                     pass->shared_quad_state_list.back(),
                                     pass.get());
   quad->background_color = SK_ColorBLACK;
 
   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_);
+      render_pass_background_filters, &candidate_list, nullptr, &damage_rect_,
+      &content_bounds_);
   EXPECT_EQ(0U, candidate_list.size());
 }
 
 TEST_F(SingleOverlayOnTopTest, RejectBlendMode) {
   std::unique_ptr<RenderPass> pass = CreateRenderPass();
   CreateFullscreenCandidateQuad(resource_provider_.get(),
                                 pass->shared_quad_state_list.back(),
                                 pass.get());
   pass->shared_quad_state_list.back()->blend_mode = SkBlendMode::kScreen;
 
   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_);
+      render_pass_background_filters, &candidate_list, nullptr, &damage_rect_,
+      &content_bounds_);
   EXPECT_EQ(0U, candidate_list.size());
 }
 
 TEST_F(SingleOverlayOnTopTest, RejectOpacity) {
   std::unique_ptr<RenderPass> pass = CreateRenderPass();
   CreateFullscreenCandidateQuad(resource_provider_.get(),
                                 pass->shared_quad_state_list.back(),
                                 pass.get());
   pass->shared_quad_state_list.back()->opacity = 0.5f;
 
   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_);
+      render_pass_background_filters, &candidate_list, nullptr, &damage_rect_,
+      &content_bounds_);
   EXPECT_EQ(0U, candidate_list.size());
 }
 
 TEST_F(SingleOverlayOnTopTest, RejectNonAxisAlignedTransform) {
   std::unique_ptr<RenderPass> pass = CreateRenderPass();
   CreateFullscreenCandidateQuad(resource_provider_.get(),
                                 pass->shared_quad_state_list.back(),
                                 pass.get());
   pass->shared_quad_state_list.back()
       ->quad_to_target_transform.RotateAboutXAxis(45.f);
 
   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_);
+      render_pass_background_filters, &candidate_list, nullptr, &damage_rect_,
+      &content_bounds_);
   EXPECT_EQ(0U, candidate_list.size());
 }
 
 TEST_F(SingleOverlayOnTopTest, AllowClipped) {
   std::unique_ptr<RenderPass> pass = CreateRenderPass();
   CreateFullscreenCandidateQuad(resource_provider_.get(),
                                 pass->shared_quad_state_list.back(),
                                 pass.get());
   pass->shared_quad_state_list.back()->is_clipped = true;
   pass->shared_quad_state_list.back()->clip_rect = kOverlayClipRect;
 
   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_);
+      render_pass_background_filters, &candidate_list, nullptr, &damage_rect_,
+      &content_bounds_);
   EXPECT_EQ(1U, candidate_list.size());
 }
 
 TEST_F(SingleOverlayOnTopTest, AllowVerticalFlip) {
   gfx::Rect rect = kOverlayRect;
   rect.set_width(rect.width() / 2);
   rect.Offset(0, -rect.height());
   std::unique_ptr<RenderPass> pass = CreateRenderPass();
   CreateCandidateQuadAt(resource_provider_.get(),
                         pass->shared_quad_state_list.back(), pass.get(), rect);
   pass->shared_quad_state_list.back()->quad_to_target_transform.Scale(2.0f,
                                                                       -1.0f);
   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_);
+      render_pass_background_filters, &candidate_list, nullptr, &damage_rect_,
+      &content_bounds_);
   ASSERT_EQ(1U, candidate_list.size());
   EXPECT_EQ(gfx::OVERLAY_TRANSFORM_FLIP_VERTICAL,
             candidate_list.back().transform);
 }
 
 TEST_F(SingleOverlayOnTopTest, AllowHorizontalFlip) {
   gfx::Rect rect = kOverlayRect;
   rect.set_height(rect.height() / 2);
   rect.Offset(-rect.width(), 0);
   std::unique_ptr<RenderPass> pass = CreateRenderPass();
   CreateCandidateQuadAt(resource_provider_.get(),
                         pass->shared_quad_state_list.back(), pass.get(), rect);
   pass->shared_quad_state_list.back()->quad_to_target_transform.Scale(-1.0f,
                                                                       2.0f);
 
   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_);
+      render_pass_background_filters, &candidate_list, nullptr, &damage_rect_,
+      &content_bounds_);
   ASSERT_EQ(1U, candidate_list.size());
   EXPECT_EQ(gfx::OVERLAY_TRANSFORM_FLIP_HORIZONTAL,
             candidate_list.back().transform);
 }
 
 TEST_F(SingleOverlayOnTopTest, AllowPositiveScaleTransform) {
   gfx::Rect rect = kOverlayRect;
   rect.set_width(rect.width() / 2);
   std::unique_ptr<RenderPass> pass = CreateRenderPass();
   CreateCandidateQuadAt(resource_provider_.get(),
                         pass->shared_quad_state_list.back(), pass.get(), rect);
   pass->shared_quad_state_list.back()->quad_to_target_transform.Scale(2.0f,
                                                                       1.0f);
   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_);
+      render_pass_background_filters, &candidate_list, nullptr, &damage_rect_,
+      &content_bounds_);
   EXPECT_EQ(1U, candidate_list.size());
 }
 
 TEST_F(SingleOverlayOnTopTest, Allow90DegreeRotation) {
   gfx::Rect rect = kOverlayRect;
   rect.Offset(0, -rect.height());
   std::unique_ptr<RenderPass> pass = CreateRenderPass();
   CreateCandidateQuadAt(resource_provider_.get(),
                         pass->shared_quad_state_list.back(), pass.get(), rect);
   pass->shared_quad_state_list.back()
       ->quad_to_target_transform.RotateAboutZAxis(90.f);
 
   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_);
+      render_pass_background_filters, &candidate_list, nullptr, &damage_rect_,
+      &content_bounds_);
   ASSERT_EQ(1U, candidate_list.size());
   EXPECT_EQ(gfx::OVERLAY_TRANSFORM_ROTATE_90, candidate_list.back().transform);
 }
 
 TEST_F(SingleOverlayOnTopTest, Allow180DegreeRotation) {
   gfx::Rect rect = kOverlayRect;
   rect.Offset(-rect.width(), -rect.height());
   std::unique_ptr<RenderPass> pass = CreateRenderPass();
   CreateCandidateQuadAt(resource_provider_.get(),
                         pass->shared_quad_state_list.back(), pass.get(), rect);
   pass->shared_quad_state_list.back()
       ->quad_to_target_transform.RotateAboutZAxis(180.f);
 
   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_);
+      render_pass_background_filters, &candidate_list, nullptr, &damage_rect_,
+      &content_bounds_);
   ASSERT_EQ(1U, candidate_list.size());
   EXPECT_EQ(gfx::OVERLAY_TRANSFORM_ROTATE_180, candidate_list.back().transform);
 }
 
 TEST_F(SingleOverlayOnTopTest, Allow270DegreeRotation) {
   gfx::Rect rect = kOverlayRect;
   rect.Offset(-rect.width(), 0);
   std::unique_ptr<RenderPass> pass = CreateRenderPass();
   CreateCandidateQuadAt(resource_provider_.get(),
                         pass->shared_quad_state_list.back(), pass.get(), rect);
   pass->shared_quad_state_list.back()
       ->quad_to_target_transform.RotateAboutZAxis(270.f);
 
   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_);
+      render_pass_background_filters, &candidate_list, nullptr, &damage_rect_,
+      &content_bounds_);
   ASSERT_EQ(1U, candidate_list.size());
   EXPECT_EQ(gfx::OVERLAY_TRANSFORM_ROTATE_270, candidate_list.back().transform);
 }
 
 TEST_F(SingleOverlayOnTopTest, AllowNotTopIfNotOccluded) {
   std::unique_ptr<RenderPass> pass = CreateRenderPass();
   CreateOpaqueQuadAt(resource_provider_.get(),
                      pass->shared_quad_state_list.back(), pass.get(),
                      kOverlayTopLeftRect);
   CreateCandidateQuadAt(resource_provider_.get(),
                         pass->shared_quad_state_list.back(),
                         pass.get(),
                         kOverlayBottomRightRect);
 
   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_);
+      render_pass_background_filters, &candidate_list, nullptr, &damage_rect_,
+      &content_bounds_);
   EXPECT_EQ(1U, candidate_list.size());
 }
 
 TEST_F(SingleOverlayOnTopTest, AllowTransparentOnTop) {
   std::unique_ptr<RenderPass> pass = CreateRenderPass();
   SharedQuadState* shared_state = pass->CreateAndAppendSharedQuadState();
   shared_state->opacity = 0.f;
   CreateSolidColorQuadAt(shared_state, SK_ColorBLACK, pass.get(),
                          kOverlayBottomRightRect);
   shared_state = pass->CreateAndAppendSharedQuadState();
   shared_state->opacity = 1.f;
   CreateCandidateQuadAt(resource_provider_.get(), shared_state, pass.get(),
                         kOverlayBottomRightRect);
 
   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_);
+      render_pass_background_filters, &candidate_list, nullptr, &damage_rect_,
+      &content_bounds_);
   EXPECT_EQ(1U, candidate_list.size());
 }
 
 TEST_F(SingleOverlayOnTopTest, AllowTransparentColorOnTop) {
   std::unique_ptr<RenderPass> pass = CreateRenderPass();
   CreateSolidColorQuadAt(pass->shared_quad_state_list.back(),
                          SK_ColorTRANSPARENT, pass.get(),
                          kOverlayBottomRightRect);
   CreateCandidateQuadAt(resource_provider_.get(),
                         pass->shared_quad_state_list.back(), pass.get(),
                         kOverlayBottomRightRect);
 
   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_);
+      render_pass_background_filters, &candidate_list, nullptr, &damage_rect_,
+      &content_bounds_);
   EXPECT_EQ(1U, candidate_list.size());
 }
 
 TEST_F(SingleOverlayOnTopTest, RejectOpaqueColorOnTop) {
   std::unique_ptr<RenderPass> pass = CreateRenderPass();
   SharedQuadState* shared_state = pass->CreateAndAppendSharedQuadState();
   shared_state->opacity = 0.5f;
   CreateSolidColorQuadAt(shared_state, SK_ColorBLACK, pass.get(),
                          kOverlayBottomRightRect);
   shared_state = pass->CreateAndAppendSharedQuadState();
   shared_state->opacity = 1.f;
   CreateCandidateQuadAt(resource_provider_.get(), shared_state, pass.get(),
                         kOverlayBottomRightRect);
 
   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_);
+      render_pass_background_filters, &candidate_list, nullptr, &damage_rect_,
+      &content_bounds_);
   EXPECT_EQ(0U, candidate_list.size());
 }
 
 TEST_F(SingleOverlayOnTopTest, RejectTransparentColorOnTopWithoutBlending) {
   std::unique_ptr<RenderPass> pass = CreateRenderPass();
   SharedQuadState* shared_state = pass->CreateAndAppendSharedQuadState();
   CreateSolidColorQuadAt(shared_state, SK_ColorTRANSPARENT, pass.get(),
                          kOverlayBottomRightRect)->opaque_rect =
       kOverlayBottomRightRect;
   CreateCandidateQuadAt(resource_provider_.get(), shared_state, pass.get(),
                         kOverlayBottomRightRect);
 
   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_);
+      render_pass_background_filters, &candidate_list, nullptr, &damage_rect_,
+      &content_bounds_);
   EXPECT_EQ(0U, candidate_list.size());
 }
 
 TEST_F(SingleOverlayOnTopTest, RejectVideoSwapTransform) {
   std::unique_ptr<RenderPass> pass = CreateRenderPass();
   CreateFullscreenCandidateVideoQuad(resource_provider_.get(),
                                      pass->shared_quad_state_list.back(),
                                      pass.get(), kSwapTransform);
 
   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_);
+      render_pass_background_filters, &candidate_list, nullptr, &damage_rect_,
+      &content_bounds_);
   EXPECT_EQ(0U, candidate_list.size());
 }
 
 TEST_F(SingleOverlayOnTopTest, AllowVideoXMirrorTransform) {
   std::unique_ptr<RenderPass> pass = CreateRenderPass();
   CreateFullscreenCandidateVideoQuad(resource_provider_.get(),
                                      pass->shared_quad_state_list.back(),
                                      pass.get(), kXMirrorTransform);
 
   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_);
+      render_pass_background_filters, &candidate_list, nullptr, &damage_rect_,
+      &content_bounds_);
   EXPECT_EQ(1U, candidate_list.size());
 }
 
 TEST_F(SingleOverlayOnTopTest, AllowVideoBothMirrorTransform) {
   std::unique_ptr<RenderPass> pass = CreateRenderPass();
   CreateFullscreenCandidateVideoQuad(resource_provider_.get(),
                                      pass->shared_quad_state_list.back(),
                                      pass.get(), kBothMirrorTransform);
 
   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_);
+      render_pass_background_filters, &candidate_list, nullptr, &damage_rect_,
+      &content_bounds_);
   EXPECT_EQ(1U, candidate_list.size());
 }
 
 TEST_F(SingleOverlayOnTopTest, AllowVideoNormalTransform) {
   std::unique_ptr<RenderPass> pass = CreateRenderPass();
   CreateFullscreenCandidateVideoQuad(resource_provider_.get(),
                                      pass->shared_quad_state_list.back(),
                                      pass.get(), kNormalTransform);
 
   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_);
+      render_pass_background_filters, &candidate_list, nullptr, &damage_rect_,
+      &content_bounds_);
   EXPECT_EQ(1U, candidate_list.size());
 }
 
 TEST_F(SingleOverlayOnTopTest, AllowVideoYMirrorTransform) {
   std::unique_ptr<RenderPass> pass = CreateRenderPass();
   CreateFullscreenCandidateVideoQuad(resource_provider_.get(),
                                      pass->shared_quad_state_list.back(),
                                      pass.get(), kYMirrorTransform);
 
   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_);
+      render_pass_background_filters, &candidate_list, nullptr, &damage_rect_,
+      &content_bounds_);
   EXPECT_EQ(1U, candidate_list.size());
 }
 
 TEST_F(UnderlayTest, OverlayLayerUnderMainLayer) {
   std::unique_ptr<RenderPass> pass = CreateRenderPass();
   CreateFullscreenOpaqueQuad(resource_provider_.get(),
                              pass->shared_quad_state_list.back(), pass.get());
   CreateCandidateQuadAt(resource_provider_.get(),
                         pass->shared_quad_state_list.back(), pass.get(),
                         kOverlayBottomRightRect);
 
   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_);
+      render_pass_background_filters, &candidate_list, nullptr, &damage_rect_,
+      &content_bounds_);
   ASSERT_EQ(1U, candidate_list.size());
   EXPECT_EQ(-1, candidate_list[0].plane_z_order);
   EXPECT_EQ(2U, pass->quad_list.size());
   // The overlay quad should have changed to a SOLID_COLOR quad.
   EXPECT_EQ(pass->quad_list.back()->material, DrawQuad::SOLID_COLOR);
 }
 
 TEST_F(UnderlayTest, AllowOnTop) {
   std::unique_ptr<RenderPass> pass = CreateRenderPass();
   CreateFullscreenCandidateQuad(resource_provider_.get(),
                                 pass->shared_quad_state_list.back(),
                                 pass.get());
   pass->CreateAndAppendSharedQuadState()->opacity = 0.5f;
   CreateFullscreenOpaqueQuad(resource_provider_.get(),
                              pass->shared_quad_state_list.back(), pass.get());
 
   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_);
+      render_pass_background_filters, &candidate_list, nullptr, &damage_rect_,
+      &content_bounds_);
   ASSERT_EQ(1U, candidate_list.size());
   EXPECT_EQ(-1, candidate_list[0].plane_z_order);
   // The overlay quad should have changed to a SOLID_COLOR quad.
   EXPECT_EQ(pass->quad_list.front()->material, DrawQuad::SOLID_COLOR);
 }
 
 // The first time an underlay is scheduled its damage must not be subtracted.
 TEST_F(UnderlayTest, InitialUnderlayDamageNotSubtracted) {
   std::unique_ptr<RenderPass> pass = CreateRenderPass();
   CreateFullscreenCandidateQuad(resource_provider_.get(),
                                 pass->shared_quad_state_list.back(),
                                 pass.get());
 
   damage_rect_ = kOverlayRect;
 
   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_);
+      render_pass_background_filters, &candidate_list, nullptr, &damage_rect_,
+      &content_bounds_);
 
   EXPECT_EQ(kOverlayRect, damage_rect_);
 }
 
 // An identical underlay for two frames in a row means the damage can be
 // subtracted the second time.
 TEST_F(UnderlayTest, DamageSubtractedForConsecutiveIdenticalUnderlays) {
   for (int i = 0; i < 2; ++i) {
     std::unique_ptr<RenderPass> pass = CreateRenderPass();
     CreateFullscreenCandidateQuad(resource_provider_.get(),
                                   pass->shared_quad_state_list.back(),
                                   pass.get());
 
     damage_rect_ = kOverlayRect;
 
     // Add something behind it.
     CreateFullscreenOpaqueQuad(resource_provider_.get(),
                                pass->shared_quad_state_list.back(), pass.get());
 
     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_);
+        render_pass_background_filters, &candidate_list, nullptr, &damage_rect_,
+        &content_bounds_);
   }
 
   // The second time the same overlay rect is scheduled it will be subtracted
   // from the damage rect.
   EXPECT_TRUE(damage_rect_.IsEmpty());
 }
 
 // Underlay damage can only be subtracted if the previous frame's underlay
 // was the same rect.
 TEST_F(UnderlayTest, DamageNotSubtractedForNonIdenticalConsecutiveUnderlays) {
   gfx::Rect overlay_rects[] = {kOverlayBottomRightRect, kOverlayRect};
   for (int i = 0; i < 2; ++i) {
     std::unique_ptr<RenderPass> pass = CreateRenderPass();
 
     CreateCandidateQuadAt(resource_provider_.get(),
                           pass->shared_quad_state_list.back(), pass.get(),
                           overlay_rects[i]);
 
     damage_rect_ = overlay_rects[i];
 
     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_);
+        render_pass_background_filters, &candidate_list, nullptr, &damage_rect_,
+        &content_bounds_);
 
     EXPECT_EQ(overlay_rects[i], damage_rect_);
   }
 }
 
 TEST_F(UnderlayTest, DamageNotSubtractedWhenQuadsAboveOverlap) {
   for (int i = 0; i < 2; ++i) {
     std::unique_ptr<RenderPass> pass = CreateRenderPass();
     // Add an overlapping quad above the candidate.
     CreateFullscreenOpaqueQuad(resource_provider_.get(),
                                pass->shared_quad_state_list.back(), pass.get());
     CreateFullscreenCandidateQuad(resource_provider_.get(),
                                   pass->shared_quad_state_list.back(),
                                   pass.get());
 
     damage_rect_ = kOverlayRect;
 
     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_);
+        render_pass_background_filters, &candidate_list, nullptr, &damage_rect_,
+        &content_bounds_);
   }
 
   EXPECT_EQ(kOverlayRect, damage_rect_);
 }
 
 TEST_F(UnderlayTest, DamageSubtractedWhenQuadsAboveDontOverlap) {
   for (int i = 0; i < 2; ++i) {
     std::unique_ptr<RenderPass> pass = CreateRenderPass();
     // Add a non-overlapping quad above the candidate.
     CreateOpaqueQuadAt(resource_provider_.get(),
                        pass->shared_quad_state_list.back(), pass.get(),
                        kOverlayTopLeftRect);
     CreateCandidateQuadAt(resource_provider_.get(),
                           pass->shared_quad_state_list.back(), pass.get(),
                           kOverlayBottomRightRect);
 
     damage_rect_ = kOverlayBottomRightRect;
 
     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_);
+        render_pass_background_filters, &candidate_list, nullptr, &damage_rect_,
+        &content_bounds_);
   }
 
   EXPECT_TRUE(damage_rect_.IsEmpty());
 }
 
+TEST_F(UnderlayCastTest, NoOverlayContentBounds) {
+  std::unique_ptr<RenderPass> pass = CreateRenderPass();
+
+  CreateOpaqueQuadAt(resource_provider_.get(),
+                     pass->shared_quad_state_list.back(), pass.get(),
+                     kOverlayTopLeftRect);
+
+  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_);
+  EXPECT_EQ(0U, content_bounds_.size());
+}
+
+TEST_F(UnderlayCastTest, FullScreenOverlayContentBounds) {
+  std::unique_ptr<RenderPass> pass = CreateRenderPass();
+  CreateCandidateQuadAt(resource_provider_.get(),
+                        pass->shared_quad_state_list.back(), pass.get(),
+                        kOverlayRect);
+
+  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_);
+
+  EXPECT_EQ(1U, content_bounds_.size());
+  EXPECT_TRUE(content_bounds_[0].IsEmpty());
+}
+
+TEST_F(UnderlayCastTest, BlackOutsideOverlayContentBounds) {
+  const gfx::Rect kLeftSide(0, 0, 128, 256);
+  const gfx::Rect kTopRight(128, 0, 128, 128);
+
+  std::unique_ptr<RenderPass> pass = CreateRenderPass();
+  CreateCandidateQuadAt(resource_provider_.get(),
+                        pass->shared_quad_state_list.back(), pass.get(),
+                        kOverlayBottomRightRect);
+  CreateOpaqueQuadAt(resource_provider_.get(),
+                     pass->shared_quad_state_list.back(), pass.get(), kLeftSide,
+                     SK_ColorBLACK);
+  CreateOpaqueQuadAt(resource_provider_.get(),
+                     pass->shared_quad_state_list.back(), pass.get(), kTopRight,
+                     SK_ColorBLACK);
+
+  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_);
+
+  EXPECT_EQ(1U, content_bounds_.size());
+  EXPECT_TRUE(content_bounds_[0].IsEmpty());
+}
+
+TEST_F(UnderlayCastTest, OverlayOccludedContentBounds) {
+  std::unique_ptr<RenderPass> pass = CreateRenderPass();
+  CreateOpaqueQuadAt(resource_provider_.get(),
+                     pass->shared_quad_state_list.back(), pass.get(),
+                     kOverlayTopLeftRect);
+  CreateCandidateQuadAt(resource_provider_.get(),
+                        pass->shared_quad_state_list.back(), pass.get(),
+                        kOverlayRect);
+
+  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_);
+
+  EXPECT_EQ(1U, content_bounds_.size());
+  EXPECT_EQ(kOverlayTopLeftRect, content_bounds_[0]);
+}
+
+TEST_F(UnderlayCastTest, OverlayOccludedUnionContentBounds) {
+  std::unique_ptr<RenderPass> pass = CreateRenderPass();
+  CreateOpaqueQuadAt(resource_provider_.get(),
+                     pass->shared_quad_state_list.back(), pass.get(),
+                     kOverlayTopLeftRect);
+  CreateOpaqueQuadAt(resource_provider_.get(),
+                     pass->shared_quad_state_list.back(), pass.get(),
+                     kOverlayBottomRightRect);
+  CreateCandidateQuadAt(resource_provider_.get(),
+                        pass->shared_quad_state_list.back(), pass.get(),
+                        kOverlayRect);
+
+  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_);
+
+  EXPECT_EQ(1U, content_bounds_.size());
+  EXPECT_EQ(kOverlayRect, content_bounds_[0]);
+}
+
 OverlayCandidateList BackbufferOverlayList(const RenderPass* root_render_pass) {
   OverlayCandidateList list;
   OverlayCandidate output_surface_plane;
   output_surface_plane.display_rect = gfx::RectF(root_render_pass->output_rect);
   output_surface_plane.quad_rect_in_target_space =
       root_render_pass->output_rect;
   output_surface_plane.use_output_surface_for_resource = true;
   output_surface_plane.overlay_handled = true;
   list.push_back(output_surface_plane);
   return list;
 }
 
 TEST_F(CALayerOverlayTest, AllowNonAxisAlignedTransform) {
   std::unique_ptr<RenderPass> pass = CreateRenderPass();
   CreateFullscreenCandidateQuad(resource_provider_.get(),
                                 pass->shared_quad_state_list.back(),
                                 pass.get());
   pass->shared_quad_state_list.back()
       ->quad_to_target_transform.RotateAboutZAxis(45.f);
 
   gfx::Rect damage_rect;
   CALayerOverlayList ca_layer_list;
   OverlayCandidateList overlay_list(BackbufferOverlayList(pass.get()));
   RenderPassFilterList render_pass_filters;
   RenderPassFilterList render_pass_background_filters;
   overlay_processor_->ProcessForOverlays(
       resource_provider_.get(), pass.get(), render_pass_filters,
       render_pass_background_filters, &overlay_list, &ca_layer_list,
-      &damage_rect);
+      &damage_rect_, &content_bounds_);
   EXPECT_EQ(gfx::Rect(), damage_rect);
   EXPECT_EQ(0U, overlay_list.size());
   EXPECT_EQ(1U, ca_layer_list.size());
   EXPECT_EQ(0U, output_surface_->bind_framebuffer_count());
 }
 
 TEST_F(CALayerOverlayTest, ThreeDTransform) {
   std::unique_ptr<RenderPass> pass = CreateRenderPass();
   CreateFullscreenCandidateQuad(resource_provider_.get(),
                                 pass->shared_quad_state_list.back(),
                                 pass.get());
   pass->shared_quad_state_list.back()
       ->quad_to_target_transform.RotateAboutXAxis(45.f);
 
   gfx::Rect damage_rect;
   CALayerOverlayList ca_layer_list;
   OverlayCandidateList overlay_list(BackbufferOverlayList(pass.get()));
   RenderPassFilterList render_pass_filters;
   RenderPassFilterList render_pass_background_filters;
   overlay_processor_->ProcessForOverlays(
       resource_provider_.get(), pass.get(), render_pass_filters,
       render_pass_background_filters, &overlay_list, &ca_layer_list,
-      &damage_rect);
+      &damage_rect_, &content_bounds_);
   EXPECT_EQ(0U, overlay_list.size());
   EXPECT_EQ(1U, ca_layer_list.size());
   gfx::Transform expected_transform;
   expected_transform.RotateAboutXAxis(45.f);
   gfx::Transform actual_transform(ca_layer_list.back().shared_state->transform);
   EXPECT_EQ(expected_transform.ToString(), actual_transform.ToString());
   EXPECT_EQ(0U, output_surface_->bind_framebuffer_count());
 }
 
 TEST_F(CALayerOverlayTest, AllowContainingClip) {
   std::unique_ptr<RenderPass> pass = CreateRenderPass();
   CreateFullscreenCandidateQuad(resource_provider_.get(),
                                 pass->shared_quad_state_list.back(),
                                 pass.get());
   pass->shared_quad_state_list.back()->is_clipped = true;
   pass->shared_quad_state_list.back()->clip_rect = kOverlayRect;
 
   gfx::Rect damage_rect;
   CALayerOverlayList ca_layer_list;
   OverlayCandidateList overlay_list(BackbufferOverlayList(pass.get()));
   RenderPassFilterList render_pass_filters;
   RenderPassFilterList render_pass_background_filters;
   overlay_processor_->ProcessForOverlays(
       resource_provider_.get(), pass.get(), render_pass_filters,
       render_pass_background_filters, &overlay_list, &ca_layer_list,
-      &damage_rect);
+      &damage_rect_, &content_bounds_);
   EXPECT_EQ(gfx::Rect(), damage_rect);
   EXPECT_EQ(0U, overlay_list.size());
   EXPECT_EQ(1U, ca_layer_list.size());
   EXPECT_EQ(0U, output_surface_->bind_framebuffer_count());
 }
 
 TEST_F(CALayerOverlayTest, NontrivialClip) {
   std::unique_ptr<RenderPass> pass = CreateRenderPass();
   CreateFullscreenCandidateQuad(resource_provider_.get(),
                                 pass->shared_quad_state_list.back(),
                                 pass.get());
   pass->shared_quad_state_list.back()->is_clipped = true;
   pass->shared_quad_state_list.back()->clip_rect = gfx::Rect(64, 64, 128, 128);
 
   gfx::Rect damage_rect;
   CALayerOverlayList ca_layer_list;
   OverlayCandidateList overlay_list(BackbufferOverlayList(pass.get()));
   RenderPassFilterList render_pass_filters;
   RenderPassFilterList render_pass_background_filters;
   overlay_processor_->ProcessForOverlays(
       resource_provider_.get(), pass.get(), render_pass_filters,
       render_pass_background_filters, &overlay_list, &ca_layer_list,
-      &damage_rect);
+      &damage_rect_, &content_bounds_);
   EXPECT_EQ(gfx::Rect(), damage_rect);
   EXPECT_EQ(0U, overlay_list.size());
   EXPECT_EQ(1U, ca_layer_list.size());
   EXPECT_TRUE(ca_layer_list.back().shared_state->is_clipped);
   EXPECT_EQ(gfx::RectF(64, 64, 128, 128),
             ca_layer_list.back().shared_state->clip_rect);
   EXPECT_EQ(0U, output_surface_->bind_framebuffer_count());
 }
 
 TEST_F(CALayerOverlayTest, SkipTransparent) {
   std::unique_ptr<RenderPass> pass = CreateRenderPass();
   CreateFullscreenCandidateQuad(resource_provider_.get(),
                                 pass->shared_quad_state_list.back(),
                                 pass.get());
   pass->shared_quad_state_list.back()->opacity = 0;
 
   gfx::Rect damage_rect;
   CALayerOverlayList ca_layer_list;
   OverlayCandidateList overlay_list(BackbufferOverlayList(pass.get()));
   RenderPassFilterList render_pass_filters;
   RenderPassFilterList render_pass_background_filters;
   overlay_processor_->ProcessForOverlays(
       resource_provider_.get(), pass.get(), render_pass_filters,
       render_pass_background_filters, &overlay_list, &ca_layer_list,
-      &damage_rect);
+      &damage_rect_, &content_bounds_);
   EXPECT_EQ(gfx::Rect(), damage_rect);
   EXPECT_EQ(0U, overlay_list.size());
   EXPECT_EQ(0U, ca_layer_list.size());
   EXPECT_EQ(0U, output_surface_->bind_framebuffer_count());
 }
 
 class OverlayInfoRendererGL : public GLRenderer {
  public:
   OverlayInfoRendererGL(const RendererSettings* settings,
                         OutputSurface* output_surface,
@@ skipping 519 matching lines @@
     quad_ = pass_->CreateAndAppendDrawQuad<RenderPassDrawQuad>();
     render_pass_id_ = 3;
   }
 
   void ProcessForOverlays() {
     gfx::Rect damage_rect;
     overlay_list_ = BackbufferOverlayList(pass_.get());
     overlay_processor_->ProcessForOverlays(
         resource_provider_.get(), pass_.get(), render_pass_filters_,
         render_pass_background_filters_, &overlay_list_, &ca_layer_list_,
-        &damage_rect);
+        &damage_rect_, &content_bounds_);
   }
   std::unique_ptr<RenderPass> pass_;
   RenderPassDrawQuad* quad_;
   int render_pass_id_;
   FilterOperations filters_;
   FilterOperations background_filters_;
   RenderPassFilterList render_pass_filters_;
   RenderPassFilterList render_pass_background_filters_;
   CALayerOverlayList ca_layer_list_;
   OverlayCandidateList overlay_list_;
@@ skipping 100 matching lines @@
                  kOverlayRect, render_pass_id_, 2, gfx::Vector2dF(),
                  gfx::Size(), gfx::Vector2dF(1, 1), gfx::PointF());
   }
 
   ProcessForOverlays();
   EXPECT_EQ(0U, ca_layer_list_.size());
 }
 
 }  // namespace
 }  // namespace cc