Pinch/Zoom Infrastructure & Plumbing CL

cc/trees/layer_tree_host_unittest.cc

Index: cc/trees/layer_tree_host_unittest.cc
diff --git a/cc/trees/layer_tree_host_unittest.cc b/cc/trees/layer_tree_host_unittest.cc
index 82134e3df0420690b88dd7ad4fa00925417becc4..ed4a84b04b7728bb7884d2dac1173fa15640916e 100644
--- a/cc/trees/layer_tree_host_unittest.cc
+++ b/cc/trees/layer_tree_host_unittest.cc
@@ -397,7 +397,7 @@ class LayerTreeHostTestNoExtraCommitFromScrollbarInvalidate
     bool paint_scrollbar = true;
     bool has_thumb = false;
     scrollbar_ = FakePaintedScrollbarLayer::Create(
-        paint_scrollbar, has_thumb, root_layer_->id());
+        paint_scrollbar, has_thumb, root_layer_.get());
     scrollbar_->SetPosition(gfx::Point(0, 10));
     scrollbar_->SetBounds(gfx::Size(10, 10));
 
@@ -1148,9 +1148,16 @@ class LayerTreeHostTestStartPageScaleAnimation
       scroll_layer_ = FakeContentLayer::Create(&client_);
     }
 
-    scroll_layer_->SetScrollable(true);
+    Layer* root_layer = layer_tree_host()->root_layer();
+    scroll_layer_->SetScrollable(root_layer);
+    scroll_layer_->SetBounds(gfx::Size(2 * root_layer->bounds().width(),
+                                       2 * root_layer->bounds().height()));
     scroll_layer_->SetScrollOffset(gfx::Vector2d());
     layer_tree_host()->root_layer()->AddChild(scroll_layer_);
+    // This test requires the page_scale and inner viewport layers to be
+    // identified.
+    layer_tree_host()->RegisterViewportLayers(
+        root_layer, scroll_layer_.get(), NULL);
     layer_tree_host()->SetPageScaleFactorAndLimits(1.f, 0.5f, 2.f);
   }
 
@@ -1460,7 +1467,7 @@ class LayerTreeHostTestDirectRendererAtomicCommit : public LayerTreeHostTest {
     bool paint_scrollbar = true;
     bool has_thumb = false;
     scrollbar_ = FakePaintedScrollbarLayer::Create(
-        paint_scrollbar, has_thumb, layer_->id());
+        paint_scrollbar, has_thumb, layer_);
     scrollbar_->SetPosition(gfx::Point(0, 10));
     scrollbar_->SetBounds(gfx::Size(10, 10));
 
@@ -4102,7 +4109,7 @@ class LayerTreeHostTestPropertyChangesDuringUpdateArePushed
     bool paint_scrollbar = true;
     bool has_thumb = false;
     scrollbar_layer_ = FakePaintedScrollbarLayer::Create(
-        paint_scrollbar, has_thumb, root_->id());
+        paint_scrollbar, has_thumb, root_.get());
 
     root_->AddChild(scrollbar_layer_);