Add tracing for GL texture objects

gpu/command_buffer/service/texture_manager_unittest.cc

Index: gpu/command_buffer/service/texture_manager_unittest.cc
diff --git a/gpu/command_buffer/service/texture_manager_unittest.cc b/gpu/command_buffer/service/texture_manager_unittest.cc
index 7568648baf1027ba5207892a62a5f71a433872c0..f0f8f883e72e2f4541b5b9b66898e32bcb009e8d 100644
--- a/gpu/command_buffer/service/texture_manager_unittest.cc
+++ b/gpu/command_buffer/service/texture_manager_unittest.cc
@@ -1714,6 +1714,10 @@ class CountingMemoryTracker : public MemoryTracker {
     return current_size_[pool];
   }
 
+  uint64_t ClientTracingId() const override { return 0; }
+
+  int ClientId() const override { return 0; }
+
  private:
   ~CountingMemoryTracker() override {}