Re-land: cc: Implement shared worker contexts.

cc/layers/heads_up_display_layer_impl_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/layers/append_quads_data.h"
 #include "cc/layers/heads_up_display_layer_impl.h"
 #include "cc/test/fake_impl_proxy.h"
 #include "cc/test/fake_layer_tree_host_impl.h"
 #include "cc/test/fake_output_surface.h"
 #include "cc/test/test_shared_bitmap_manager.h"
@@ skipping 16 matching lines @@
     layer->DidDraw(resource_provider);
 
   size_t expected_quad_list_size = will_draw ? 1 : 0;
   EXPECT_EQ(expected_quad_list_size, render_pass->quad_list.size());
 }
 
 TEST(HeadsUpDisplayLayerImplTest, ResourcelessSoftwareDrawAfterResourceLoss) {
   FakeImplProxy proxy;
   TestSharedBitmapManager shared_bitmap_manager;
   TestTaskGraphRunner task_graph_runner;
+  scoped_ptr<OutputSurface> output_surface = FakeOutputSurface::Create3d();
   FakeLayerTreeHostImpl host_impl(&proxy, &shared_bitmap_manager,
                                   &task_graph_runner);
   host_impl.CreatePendingTree();
-  host_impl.InitializeRenderer(FakeOutputSurface::Create3d());
+  host_impl.InitializeRenderer(output_surface.get());
   scoped_ptr<HeadsUpDisplayLayerImpl> layer =
     HeadsUpDisplayLayerImpl::Create(host_impl.pending_tree(), 1);
   layer->SetBounds(gfx::Size(100, 100));
 
   // Check regular hardware draw is ok.
   CheckDrawLayer(
       layer.get(), host_impl.resource_provider(), DRAW_MODE_HARDWARE);
 
   // Simulate a resource loss on transitioning to resourceless software mode.
   layer->ReleaseResources();
 
   // Should skip resourceless software draw and not crash in UpdateHudTexture.
   CheckDrawLayer(layer.get(),
                  host_impl.resource_provider(),
                  DRAW_MODE_RESOURCELESS_SOFTWARE);
 }
 
 }  // namespace
 }  // namespace cc