cc: Get rid of LayerTreeHost::output_surface_lost_ state.

cc/debug/micro_benchmark_controller_unittest.cc

 // Copyright 2013 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/debug/micro_benchmark_controller.h"
 
 #include <memory>
 
 #include "base/callback.h"
 #include "base/memory/ptr_util.h"
@@ skipping 62 matching lines @@
 }
 
 TEST_F(MicroBenchmarkControllerTest, BenchmarkRan) {
   int run_count = 0;
   int id = layer_tree_host_->ScheduleMicroBenchmark(
       "unittest_only_benchmark",
       nullptr,
       base::Bind(&IncrementCallCount, base::Unretained(&run_count)));
   EXPECT_GT(id, 0);
 
-  layer_tree_host_->SetOutputSurfaceLostForTesting(false);
   layer_tree_host_->UpdateLayers();
 
   EXPECT_EQ(1, run_count);
 }
 
 TEST_F(MicroBenchmarkControllerTest, MultipleBenchmarkRan) {
   int run_count = 0;
   int id = layer_tree_host_->ScheduleMicroBenchmark(
       "unittest_only_benchmark",
       nullptr,
       base::Bind(&IncrementCallCount, base::Unretained(&run_count)));
   EXPECT_GT(id, 0);
   id = layer_tree_host_->ScheduleMicroBenchmark(
       "unittest_only_benchmark",
       nullptr,
       base::Bind(&IncrementCallCount, base::Unretained(&run_count)));
   EXPECT_GT(id, 0);
 
-  layer_tree_host_->SetOutputSurfaceLostForTesting(false);
   layer_tree_host_->UpdateLayers();
 
   EXPECT_EQ(2, run_count);
 
   id = layer_tree_host_->ScheduleMicroBenchmark(
       "unittest_only_benchmark",
       nullptr,
       base::Bind(&IncrementCallCount, base::Unretained(&run_count)));
   EXPECT_GT(id, 0);
   id = layer_tree_host_->ScheduleMicroBenchmark(
@@ skipping 59 matching lines @@
   // Send invalid message to valid benchmark
   message = base::WrapUnique(new base::DictionaryValue);
   message->SetBoolean("can_handle", false);
   message_handled =
       layer_tree_host_->SendMessageToMicroBenchmark(id, std::move(message));
   EXPECT_FALSE(message_handled);
 }
 
 }  // namespace
 }  // namespace cc