cc: Don't DCHECK for layers with non-invertible transforms.

cc/trees/layer_tree_host_common_unittest.cc

Index: cc/trees/layer_tree_host_common_unittest.cc
diff --git a/cc/trees/layer_tree_host_common_unittest.cc b/cc/trees/layer_tree_host_common_unittest.cc
index 595e08c70237a90ae1e9a942455c80f011c8479a..d161a58d2f104cfefbdcdaf5e3b4af645675f0fc 100644
--- a/cc/trees/layer_tree_host_common_unittest.cc
+++ b/cc/trees/layer_tree_host_common_unittest.cc
@@ -3719,6 +3719,37 @@ TEST(LayerTreeHostCommonTest,
 }
 
 TEST(LayerTreeHostCommonTest,
+     DrawableAndVisibleContentRectsForLayersWithUninvertibleTransform) {
+  scoped_refptr<Layer> root = Layer::Create();
+  scoped_refptr<LayerWithForcedDrawsContent> child =
+      make_scoped_refptr(new LayerWithForcedDrawsContent());
+  root->AddChild(child);
+
+  gfx::Transform identity_matrix;
+  gfx::Transform uninvertible_matrix(0.0, 0.0, 0.0, 0.0, 0.0, 0.0);
+
+  SetLayerPropertiesForTesting(root.get(),
+                               identity_matrix,
+                               identity_matrix,
+                               gfx::PointF(),
+                               gfx::PointF(),
+                               gfx::Size(100, 100),
+                               false);
+  SetLayerPropertiesForTesting(child.get(),
+                               uninvertible_matrix,
+                               identity_matrix,
+                               gfx::PointF(),
+                               gfx::PointF(5.f, 5.f),
+                               gfx::Size(50, 50),
+                               false);
+
+  ExecuteCalculateDrawProperties(root.get());
+
+  EXPECT_TRUE(child->visible_content_rect().IsEmpty());
+  EXPECT_TRUE(child->drawable_content_rect().IsEmpty());
+}
+
+TEST(LayerTreeHostCommonTest,
      DrawableAndVisibleContentRectsForLayersInClippedRenderSurface) {
   scoped_refptr<Layer> root = Layer::Create();
   scoped_refptr<Layer> render_surface1 = Layer::Create();