cc: Get rid of LayerTreeHost::output_surface_lost_ state.

content/renderer/gpu/render_widget_compositor_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 "content/renderer/gpu/render_widget_compositor.h"
 
 #include <utility>
 
 #include "base/location.h"
 #include "base/macros.h"
@@ skipping 146 matching lines @@
   RenderWidgetCompositorOutputSurface(
       FakeRenderWidgetCompositorDelegate* delegate,
       CompositorDependencies* compositor_deps)
       : RenderWidgetCompositor(delegate, compositor_deps),
         delegate_(delegate) {}
 
   using RenderWidgetCompositor::Initialize;
 
   // Force a new output surface to be created.
   void SynchronousComposite() {
-   layer_tree_host()->DidLoseOutputSurface();
+    layer_tree_host()->SetVisible(false);
+    layer_tree_host()->ReleaseOutputSurface();
+    layer_tree_host()->SetVisible(true);
 
-   base::TimeTicks some_time;
-   layer_tree_host()->Composite(some_time);
+    base::TimeTicks some_time;
+    layer_tree_host()->Composite(some_time);
   }
 
   void RequestNewOutputSurface() override {
     delegate_->add_request();
     RenderWidgetCompositor::RequestNewOutputSurface();
   }
 
   void DidInitializeOutputSurface() override {
     delegate_->add_success();
     if (delegate_->num_requests() == expected_requests_) {
@@ skipping 115 matching lines @@
 }
 
 TEST_F(RenderWidgetCompositorOutputSurfaceTest, FallbackSuccessNormalSuccess) {
   // The first success is a fallback, but the next should not be a fallback.
   RunTest(false, RenderWidgetCompositor::OUTPUT_SURFACE_RETRIES_BEFORE_FALLBACK,
           1, 1);
 }
 
 }  // namespace
 }  // namespace content