Update Surface ID Terminology

cc/surfaces/surface_aggregator_perftest.cc

Index: cc/surfaces/surface_aggregator_perftest.cc
diff --git a/cc/surfaces/surface_aggregator_perftest.cc b/cc/surfaces/surface_aggregator_perftest.cc
index d9037435f2bc3cf4e7f6b26d5eeb7a2b87fb9b7e..9295e0246d178460dd65e900a507684753df7356 100644
--- a/cc/surfaces/surface_aggregator_perftest.cc
+++ b/cc/surfaces/surface_aggregator_perftest.cc
@@ -22,6 +22,8 @@
 namespace cc {
 namespace {
 
+static constexpr uint32_t kArbitraryClientId = 0;
+
 class EmptySurfaceFactoryClient : public SurfaceFactoryClient {
  public:
   void ReturnResources(const ReturnedResourceArray& resources) override {}
@@ -49,7 +51,7 @@ class SurfaceAggregatorPerfTest : public testing::Test {
     aggregator_.reset(new SurfaceAggregator(&manager_, resource_provider_.get(),
                                             optimize_damage));
     for (int i = 1; i <= num_surfaces; i++) {
-      factory_.Create(SurfaceId(0, i, 0));
+      factory_.Create(SurfaceId(kArbitraryClientId, i, 0));
       std::unique_ptr<RenderPass> pass(RenderPass::Create());
       std::unique_ptr<DelegatedFrameData> frame_data(new DelegatedFrameData);
 
@@ -86,17 +88,18 @@ class SurfaceAggregatorPerfTest : public testing::Test {
         SurfaceDrawQuad* surface_quad =
             pass->CreateAndAppendDrawQuad<SurfaceDrawQuad>();
         surface_quad->SetNew(sqs, gfx::Rect(0, 0, 1, 1), gfx::Rect(0, 0, 1, 1),
-                             SurfaceId(0, i - 1, 0));
+                             SurfaceId(kArbitraryClientId, i - 1, 0));
       }
 
       frame_data->render_pass_list.push_back(std::move(pass));
       CompositorFrame frame;
       frame.delegated_frame_data = std::move(frame_data);
-      factory_.SubmitCompositorFrame(SurfaceId(0, i, 0), std::move(frame),
+      factory_.SubmitCompositorFrame(SurfaceId(kArbitraryClientId, i, 0),
+                                     std::move(frame),
                                      SurfaceFactory::DrawCallback());
     }
 
-    factory_.Create(SurfaceId(0, num_surfaces + 1, 0));
+    factory_.Create(SurfaceId(kArbitraryClientId, num_surfaces + 1, 0));
     timer_.Reset();
     do {
       std::unique_ptr<RenderPass> pass(RenderPass::Create());
@@ -107,7 +110,7 @@ class SurfaceAggregatorPerfTest : public testing::Test {
           pass->CreateAndAppendDrawQuad<SurfaceDrawQuad>();
       surface_quad->SetNew(sqs, gfx::Rect(0, 0, 100, 100),
                            gfx::Rect(0, 0, 100, 100),
-                           SurfaceId(0, num_surfaces, 0));
+                           SurfaceId(kArbitraryClientId, num_surfaces, 0));
 
       if (full_damage)
         pass->damage_rect = gfx::Rect(0, 0, 100, 100);
@@ -117,21 +120,21 @@ class SurfaceAggregatorPerfTest : public testing::Test {
       frame_data->render_pass_list.push_back(std::move(pass));
       CompositorFrame frame;
       frame.delegated_frame_data = std::move(frame_data);
-      factory_.SubmitCompositorFrame(SurfaceId(0, num_surfaces + 1, 0),
-                                     std::move(frame),
-                                     SurfaceFactory::DrawCallback());
+      factory_.SubmitCompositorFrame(
+          SurfaceId(kArbitraryClientId, num_surfaces + 1, 0), std::move(frame),
+          SurfaceFactory::DrawCallback());
 
-      CompositorFrame aggregated =
-          aggregator_->Aggregate(SurfaceId(0, num_surfaces + 1, 0));
+      CompositorFrame aggregated = aggregator_->Aggregate(
+          SurfaceId(kArbitraryClientId, num_surfaces + 1, 0));
       timer_.NextLap();
     } while (!timer_.HasTimeLimitExpired());
 
     perf_test::PrintResult("aggregator_speed", "", name, timer_.LapsPerSecond(),
                            "runs/s", true);
 
-    factory_.Destroy(SurfaceId(0, num_surfaces + 1, 0));
+    factory_.Destroy(SurfaceId(kArbitraryClientId, num_surfaces + 1, 0));
     for (int i = 1; i <= num_surfaces; i++)
-      factory_.Destroy(SurfaceId(0, i, 0));
+      factory_.Destroy(SurfaceId(kArbitraryClientId, i, 0));
   }
 
  protected: