Revert of Pinch/Zoom Infrastructure & Plumbing CL

cc/trees/layer_tree_host_unittest_context.cc

 // Copyright 2012 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 "base/basictypes.h"
 #include "cc/layers/content_layer.h"
 #include "cc/layers/delegated_frame_provider.h"
 #include "cc/layers/delegated_frame_resource_collection.h"
@@ skipping 1072 matching lines @@
       root->AddChild(io_surface);
     }
 
     // Enable the hud.
     LayerTreeDebugState debug_state;
     debug_state.show_property_changed_rects = true;
     layer_tree_host()->SetDebugState(debug_state);
 
     scoped_refptr<PaintedScrollbarLayer> scrollbar =
         PaintedScrollbarLayer::Create(
-            scoped_ptr<Scrollbar>(new FakeScrollbar).Pass(), content.get());
+            scoped_ptr<Scrollbar>(new FakeScrollbar).Pass(), content->id());
     scrollbar->SetBounds(gfx::Size(10, 10));
     scrollbar->SetAnchorPoint(gfx::PointF());
     scrollbar->SetIsDrawable(true);
     root->AddChild(scrollbar);
 
     layer_tree_host()->SetRootLayer(root);
     LayerTreeHostContextTest::SetupTree();
   }
 
   virtual void BeginTest() OVERRIDE { PostSetNeedsCommitToMainThread(); }
@@ skipping 344 matching lines @@
 };
 
 MULTI_THREAD_TEST_F(LayerTreeHostContextTestImplSidePainting);
 
 class ScrollbarLayerLostContext : public LayerTreeHostContextTest {
  public:
   ScrollbarLayerLostContext() : commits_(0) {}
 
   virtual void BeginTest() OVERRIDE {
     scoped_refptr<Layer> scroll_layer = Layer::Create();
-    scrollbar_layer_ = FakePaintedScrollbarLayer::Create(
-        false, true, scroll_layer.get());
+    scrollbar_layer_ =
+        FakePaintedScrollbarLayer::Create(false, true, scroll_layer->id());
     scrollbar_layer_->SetBounds(gfx::Size(10, 100));
     layer_tree_host()->root_layer()->AddChild(scrollbar_layer_);
     layer_tree_host()->root_layer()->AddChild(scroll_layer);
     PostSetNeedsCommitToMainThread();
   }
 
   virtual void AfterTest() OVERRIDE {}
 
   virtual void CommitCompleteOnThread(LayerTreeHostImpl* impl) OVERRIDE {
     LayerTreeHostContextTest::CommitCompleteOnThread(impl);
@@ skipping 512 matching lines @@
  protected:
   FakeContentLayerClient client_;
   scoped_refptr<FakeContentLayer> layer_;
   int num_commits_;
 };
 
 SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostContextTestSurfaceCreateCallback);
 
 }  // namespace
 }  // namespace cc