Revert of cc: Implement shared worker contexts.

cc/trees/layer_tree_host_common_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_common.h"
 
 #include <algorithm>
 #include <set>
 
 #include "cc/animation/keyframed_animation_curve.h"
@@ skipping 2652 matching lines @@
   // deleted).
   EXPECT_EQ(gfx::Rect(grand_child->bounds()),
             grand_child->visible_layer_rect());
 }
 
 TEST_F(LayerTreeHostCommonTest,
        OcclusionForLayerWithUninvertibleDrawTransform) {
   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);
   scoped_ptr<LayerImpl> root = LayerImpl::Create(host_impl.active_tree(), 1);
   scoped_ptr<LayerImpl> child = LayerImpl::Create(host_impl.active_tree(), 2);
   scoped_ptr<LayerImpl> grand_child =
       LayerImpl::Create(host_impl.active_tree(), 3);
   scoped_ptr<LayerImpl> occluding_child =
       LayerImpl::Create(host_impl.active_tree(), 4);
   child->SetDrawsContent(true);
   grand_child->SetDrawsContent(true);
@@ skipping 19 matching lines @@
   SetLayerPropertiesForTesting(occluding_child.get(), identity_matrix,
                                gfx::Point3F(), gfx::PointF(),
                                gfx::Size(200, 200), false, false, false);
 
   host_impl.SetViewportSize(root->bounds());
 
   child->AddChild(grand_child.Pass());
   root->AddChild(child.Pass());
   root->AddChild(occluding_child.Pass());
   host_impl.active_tree()->SetRootLayer(root.Pass());
-  host_impl.InitializeRenderer(output_surface.get());
+  host_impl.InitializeRenderer(FakeOutputSurface::Create3d());
   bool update_lcd_text = false;
   host_impl.active_tree()->UpdateDrawProperties(update_lcd_text);
 
   LayerImpl* grand_child_ptr =
       host_impl.active_tree()->root_layer()->children()[0]->children()[0];
 
   // Though all layers have invertible transforms, matrix multiplication using
   // floating-point math makes the draw transform uninvertible.
   EXPECT_FALSE(grand_child_ptr->draw_transform().IsInvertible());
 
@@ skipping 5185 matching lines @@
                                gfx::PointF(), gfx::Size(30, 30), true, false,
                                false);
 
   ExecuteCalculateDrawProperties(root);
 
   EXPECT_EQ(gfx::Rect(30, 30), test_layer->clip_rect());
 }
 
 }  // namespace
 }  // namespace cc