Update Surface ID Terminology

cc/surfaces/surface_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 "cc/surfaces/surface.h"
 #include "cc/surfaces/surface_factory.h"
 #include "cc/surfaces/surface_factory_client.h"
 #include "cc/surfaces/surface_id_allocator.h"
 #include "cc/surfaces/surface_manager.h"
 #include "cc/test/scheduler_test_common.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "ui/gfx/geometry/size.h"
 
 namespace cc {
 namespace {
 
+static constexpr uint32_t kArbitraryClientId = 0;
+
 class FakeSurfaceFactoryClient : public SurfaceFactoryClient {
  public:
   FakeSurfaceFactoryClient() : begin_frame_source_(nullptr) {}
 
   void ReturnResources(const ReturnedResourceArray& resources) override {}
 
   void SetBeginFrameSource(BeginFrameSource* begin_frame_source) override {
     begin_frame_source_ = begin_frame_source;
   }
 
   BeginFrameSource* begin_frame_source() { return begin_frame_source_; }
 
  private:
   BeginFrameSource* begin_frame_source_;
 };
 
 TEST(SurfaceTest, SurfaceLifetime) {
   SurfaceManager manager;
   FakeSurfaceFactoryClient surface_factory_client;
   SurfaceFactory factory(&manager, &surface_factory_client);
 
-  SurfaceId surface_id(0, 6, 0);
+  SurfaceId surface_id(kArbitraryClientId, 6, 0);
   {
     factory.Create(surface_id);
     EXPECT_TRUE(manager.GetSurfaceForId(surface_id));
     factory.Destroy(surface_id);
   }
 
   EXPECT_EQ(NULL, manager.GetSurfaceForId(surface_id));
 }
 
 TEST(SurfaceTest, SurfaceIds) {
-  uint32_t namespaces[] = {0u, 37u, ~0u};
+  uint32_t client_ids[] = {0u, 37u, ~0u};
   for (size_t i = 0; i < 3; ++i) {
-    uint32_t id_namespace = namespaces[i];
-    SurfaceIdAllocator allocator(id_namespace);
+    uint32_t client_id = client_ids[i];
+    SurfaceIdAllocator allocator(client_id);
     SurfaceId id1 = allocator.GenerateId();
-    EXPECT_EQ(id1.id_namespace(), id_namespace);
+    EXPECT_EQ(id1.client_id(), client_id);
     SurfaceId id2 = allocator.GenerateId();
-    EXPECT_EQ(id2.id_namespace(), id_namespace);
+    EXPECT_EQ(id2.client_id(), client_id);
     EXPECT_NE(id1.local_id(), id2.local_id());
     EXPECT_NE(id1.nonce(), id2.nonce());
   }
 }
 
 }  // namespace
 }  // namespace cc