cc: Get rid of LayerTreeHost::output_surface_lost_ state.

cc/trees/layer_tree_host_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.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <algorithm>
@@ skipping 4851 matching lines @@
       EXPECT_EQ(SwapPromise::COMMIT_FAILS, swap_promise_result_.reason);
       EXPECT_TRUE(swap_promise_result_.dtor_called);
     }
   }
 
   TestSwapPromiseResult swap_promise_result_;
 };
 
 SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostTestBreakSwapPromiseForVisibility);
 
-class LayerTreeHostTestBreakSwapPromiseForContext : public LayerTreeHostTest {
- protected:
-  LayerTreeHostTestBreakSwapPromiseForContext()
-      : output_surface_lost_triggered_(false) {}
-
-  void BeginTest() override { PostSetNeedsCommitToMainThread(); }
-
-  void LoseOutputSurfaceAndQueueSwapPromise() {
-    layer_tree_host()->DidLoseOutputSurface();
-    std::unique_ptr<SwapPromise> swap_promise(
-        new TestSwapPromise(&swap_promise_result_));
-    layer_tree_host()->QueueSwapPromise(std::move(swap_promise));
-  }
-
-  void WillBeginImplFrameOnThread(LayerTreeHostImpl* impl,
-                                  const BeginFrameArgs& args) override {
-    if (output_surface_lost_triggered_)
-      return;
-    output_surface_lost_triggered_ = true;
-
-    MainThreadTaskRunner()->PostTask(
-        FROM_HERE, base::Bind(&LayerTreeHostTestBreakSwapPromiseForContext::
-                                  LoseOutputSurfaceAndQueueSwapPromise,
-                              base::Unretained(this)));
-  }
-
-  void BeginMainFrameAbortedOnThread(LayerTreeHostImpl* host_impl,
-                                     CommitEarlyOutReason reason) override {
-    // This is needed so that the impl-thread state matches main-thread state.
-    host_impl->DidLoseOutputSurface();
-    EndTest();
-  }
-
-  void AfterTest() override {
-    {
-      base::AutoLock lock(swap_promise_result_.lock);
-      EXPECT_FALSE(swap_promise_result_.did_activate_called);
-      EXPECT_FALSE(swap_promise_result_.did_swap_called);
-      EXPECT_TRUE(swap_promise_result_.did_not_swap_called);
-      EXPECT_EQ(SwapPromise::COMMIT_FAILS, swap_promise_result_.reason);
-      EXPECT_TRUE(swap_promise_result_.dtor_called);
-    }
-  }
-
-  bool output_surface_lost_triggered_;
-  TestSwapPromiseResult swap_promise_result_;
-};
-
-SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostTestBreakSwapPromiseForContext);
-
 class SimpleSwapPromiseMonitor : public SwapPromiseMonitor {
  public:
   SimpleSwapPromiseMonitor(LayerTreeHost* layer_tree_host,
                            LayerTreeHostImpl* layer_tree_host_impl,
                            int* set_needs_commit_count,
                            int* set_needs_redraw_count)
       : SwapPromiseMonitor(layer_tree_host, layer_tree_host_impl),
         set_needs_commit_count_(set_needs_commit_count) {}
 
   ~SimpleSwapPromiseMonitor() override {}
@@ skipping 2099 matching lines @@
  private:
   FakeContentLayerClient client_;
   const gfx::Size viewport_size_;
   const gfx::Size large_image_size_;
 };
 
 SINGLE_AND_MULTI_THREAD_TEST_F(GpuRasterizationSucceedsWithLargeImage);
 
 }  // namespace
 }  // namespace cc