LatencyInfo trace_id_ no longer dependent on sequence_number.

cc/trees/layer_tree_host_impl_unittest.cc

 // Copyright 2011 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/trees/layer_tree_host_impl.h"
 
 #include <stddef.h>
 
 #include <algorithm>
 #include <cmath>
@@ skipping 2111 matching lines @@
   host_impl_->ScrollEnd(EndState().get());
 
   EXPECT_VECTOR_EQ(gfx::Vector2dF(100, 100),
                    outer_scroll_layer->CurrentScrollOffset());
   EXPECT_VECTOR_EQ(gfx::Vector2dF(50, 50),
                    inner_scroll_layer->CurrentScrollOffset());
 }
 
 TEST_F(LayerTreeHostImplTest, ScrollWithSwapPromises) {
   ui::LatencyInfo latency_info;
+  latency_info.set_trace_id(5);
   latency_info.AddLatencyNumber(ui::INPUT_EVENT_LATENCY_BEGIN_RWH_COMPONENT, 0,
                                 1234);
   std::unique_ptr<SwapPromise> swap_promise(
       new LatencyInfoSwapPromise(latency_info));
 
   SetupScrollAndContentsLayers(gfx::Size(100, 100));
   EXPECT_EQ(InputHandler::SCROLL_ON_IMPL_THREAD,
             host_impl_
                 ->ScrollBegin(BeginState(gfx::Point()).get(),
                               InputHandler::TOUCHSCREEN)
@@ skipping 7088 matching lines @@
   root->SetDrawsContent(true);
   root->test_properties()->force_render_surface = true;
 
   host_impl_->active_tree()->SetRootLayerForTesting(std::move(root));
   host_impl_->active_tree()->BuildPropertyTreesForTesting();
 
   auto* fake_layer_tree_frame_sink =
       static_cast<FakeLayerTreeFrameSink*>(host_impl_->layer_tree_frame_sink());
 
   ui::LatencyInfo latency_info;
+  latency_info.set_trace_id(5);
   latency_info.AddLatencyNumber(ui::INPUT_EVENT_LATENCY_BEGIN_RWH_COMPONENT, 0,
                                 0);
   std::unique_ptr<SwapPromise> swap_promise(
       new LatencyInfoSwapPromise(latency_info));
   host_impl_->active_tree()->QueuePinnedSwapPromise(std::move(swap_promise));
 
   gfx::Rect full_frame_damage(host_impl_->DeviceViewport().size());
   TestFrameData frame;
   EXPECT_EQ(DRAW_SUCCESS, host_impl_->PrepareToDraw(&frame));
   EXPECT_TRUE(host_impl_->DrawLayers(&frame));
@@ skipping 3412 matching lines @@
   // layer should be prioritized over the hidden layer.
   hidden_layer->set_contributes_to_drawn_render_surface(false);
   hidden_layer->set_raster_even_if_not_drawn(true);
   queue = host_impl_->BuildRasterQueue(TreePriority::SMOOTHNESS_TAKES_PRIORITY,
                                        RasterTilePriorityQueue::Type::ALL);
   EXPECT_EQ(queue->Top().tile()->layer_id(), 3);
 }
 
 }  // namespace
 }  // namespace cc