| Index: cc/surfaces/surface_aggregator_unittest.cc
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| diff --git a/cc/surfaces/surface_aggregator_unittest.cc b/cc/surfaces/surface_aggregator_unittest.cc
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| index 0ee7a84ebb7e441ce31a71b5ce3bcfd6b6b8f932..8dfbd080584a8fd831cace403c56508ad04282da 100644
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| --- a/cc/surfaces/surface_aggregator_unittest.cc
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| +++ b/cc/surfaces/surface_aggregator_unittest.cc
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| @@ -36,9 +36,12 @@ namespace {
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|  
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|  static constexpr FrameSinkId kArbitraryFrameSinkId(1, 1);
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|  static constexpr FrameSinkId kArbitraryChildFrameSinkId(2, 2);
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| +static const base::UnguessableToken kArbitraryToken =
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| +    base::UnguessableToken::Create();
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|  
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|  SurfaceId InvalidSurfaceId() {
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| -  static SurfaceId invalid(kArbitraryFrameSinkId, LocalFrameId(0xdeadbeef, 0));
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| +  static SurfaceId invalid(kArbitraryFrameSinkId,
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| +                           LocalFrameId(0xdeadbeef, kArbitraryToken));
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|    return invalid;
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|  }
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|  
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| @@ -79,7 +82,7 @@ class SurfaceAggregatorTest : public testing::Test {
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|  };
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|  
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|  TEST_F(SurfaceAggregatorTest, ValidSurfaceNoFrame) {
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| -  LocalFrameId local_frame_id(7, 0);
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| +  LocalFrameId local_frame_id(7, base::UnguessableToken::Create());
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|    SurfaceId one_id(kArbitraryFrameSinkId, local_frame_id);
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|    factory_.Create(local_frame_id);
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|  
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| @@ -1793,7 +1796,7 @@ void SubmitCompositorFrameWithResources(ResourceId* resource_ids,
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|  TEST_F(SurfaceAggregatorWithResourcesTest, TakeResourcesOneSurface) {
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|    ResourceTrackingSurfaceFactoryClient client;
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|    SurfaceFactory factory(kArbitraryFrameSinkId, &manager_, &client);
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| -  LocalFrameId local_frame_id(7u, 0);
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| +  LocalFrameId local_frame_id(7u, base::UnguessableToken::Create());
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|    SurfaceId surface_id(kArbitraryFrameSinkId, local_frame_id);
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|    factory.Create(local_frame_id);
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|  
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| @@ -1824,7 +1827,7 @@ TEST_F(SurfaceAggregatorWithResourcesTest, TakeResourcesOneSurface) {
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|  TEST_F(SurfaceAggregatorWithResourcesTest, TakeInvalidResources) {
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|    ResourceTrackingSurfaceFactoryClient client;
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|    SurfaceFactory factory(kArbitraryFrameSinkId, &manager_, &client);
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| -  LocalFrameId local_frame_id(7u, 0);
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| +  LocalFrameId local_frame_id(7u, base::UnguessableToken::Create());
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|    SurfaceId surface_id(kArbitraryFrameSinkId, local_frame_id);
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|    factory.Create(local_frame_id);
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|  
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| @@ -1857,11 +1860,11 @@ TEST_F(SurfaceAggregatorWithResourcesTest, TakeInvalidResources) {
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|  TEST_F(SurfaceAggregatorWithResourcesTest, TwoSurfaces) {
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|    ResourceTrackingSurfaceFactoryClient client;
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|    SurfaceFactory factory(kArbitraryFrameSinkId, &manager_, &client);
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| -  LocalFrameId local_frame1_id(7u, 0);
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| +  LocalFrameId local_frame1_id(7u, base::UnguessableToken::Create());
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|    SurfaceId surface1_id(kArbitraryFrameSinkId, local_frame1_id);
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|    factory.Create(local_frame1_id);
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|  
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| -  LocalFrameId local_frame2_id(8u, 0);
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| +  LocalFrameId local_frame2_id(8u, base::UnguessableToken::Create());
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|    SurfaceId surface2_id(kArbitraryFrameSinkId, local_frame2_id);
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|    factory.Create(local_frame2_id);
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|  
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| @@ -1900,13 +1903,13 @@ TEST_F(SurfaceAggregatorWithResourcesTest, TwoSurfaces) {
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|  TEST_F(SurfaceAggregatorWithResourcesTest, InvalidChildSurface) {
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|    ResourceTrackingSurfaceFactoryClient client;
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|    SurfaceFactory factory(kArbitraryFrameSinkId, &manager_, &client);
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| -  LocalFrameId root_local_frame_id(7u, 1);
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| +  LocalFrameId root_local_frame_id(7u, kArbitraryToken);
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|    SurfaceId root_surface_id(kArbitraryFrameSinkId, root_local_frame_id);
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|    factory.Create(root_local_frame_id);
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| -  LocalFrameId middle_local_frame_id(8u, 1);
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| +  LocalFrameId middle_local_frame_id(8u, kArbitraryToken);
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|    SurfaceId middle_surface_id(kArbitraryFrameSinkId, middle_local_frame_id);
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|    factory.Create(middle_local_frame_id);
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| -  LocalFrameId child_local_frame_id(9u, 1);
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| +  LocalFrameId child_local_frame_id(9u, kArbitraryToken);
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|    SurfaceId child_surface_id(kArbitraryFrameSinkId, child_local_frame_id);
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|    factory.Create(child_local_frame_id);
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|  
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| @@ -1950,11 +1953,11 @@ TEST_F(SurfaceAggregatorWithResourcesTest, InvalidChildSurface) {
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|  TEST_F(SurfaceAggregatorWithResourcesTest, SecureOutputTexture) {
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|    ResourceTrackingSurfaceFactoryClient client;
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|    SurfaceFactory factory(kArbitraryFrameSinkId, &manager_, &client);
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| -  LocalFrameId local_frame1_id(7u, 0);
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| +  LocalFrameId local_frame1_id(7u, base::UnguessableToken::Create());
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|    SurfaceId surface1_id(kArbitraryFrameSinkId, local_frame1_id);
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|    factory.Create(local_frame1_id);
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|  
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| -  LocalFrameId local_frame2_id(8u, 0);
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| +  LocalFrameId local_frame2_id(8u, base::UnguessableToken::Create());
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|    SurfaceId surface2_id(kArbitraryFrameSinkId, local_frame2_id);
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|    factory.Create(local_frame2_id);
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|  
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| 
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