cc: Remove EnsureRenderSurfaceLayerList, do UpdateDrawProps when needed.

cc/layers/picture_image_layer_impl_unittest.cc

Index: cc/layers/picture_image_layer_impl_unittest.cc
diff --git a/cc/layers/picture_image_layer_impl_unittest.cc b/cc/layers/picture_image_layer_impl_unittest.cc
index 97d522aae36ebaad88e34f77254a6d90dc2565b2..e8c993fa9f56c2fc47018bcc3bbc531d6f2f0138 100644
--- a/cc/layers/picture_image_layer_impl_unittest.cc
+++ b/cc/layers/picture_image_layer_impl_unittest.cc
@@ -66,10 +66,6 @@ class PictureImageLayerImplTest : public testing::Test {
     return make_scoped_ptr(layer);
   }
 
-  void UpdateDrawProperties() {
-    host_impl_.pending_tree()->UpdateDrawProperties();
-  }
-
  protected:
   FakeImplProxy proxy_;
   FakeLayerTreeHostImpl host_impl_;
@@ -97,29 +93,6 @@ TEST_F(PictureImageLayerImplTest, CalculateContentsScale) {
   EXPECT_EQ(layer->bounds(), content_bounds);
 }
 
-TEST_F(PictureImageLayerImplTest, AreVisibleResourcesReady) {
-  scoped_ptr<TestablePictureImageLayerImpl> layer(CreateLayer(1, PENDING_TREE));
-  layer->SetBounds(gfx::Size(100, 200));
-  layer->SetDrawsContent(true);
-
-  UpdateDrawProperties();
-
-  float contents_scale_x;
-  float contents_scale_y;
-  gfx::Size content_bounds;
-  layer->CalculateContentsScale(2.f,
-                                3.f,
-                                4.f,
-                                1.f,
-                                false,
-                                &contents_scale_x,
-                                &contents_scale_y,
-                                &content_bounds);
-  layer->UpdateTilePriorities();
-
-  EXPECT_TRUE(layer->AreVisibleResourcesReady());
-}
-
 TEST_F(PictureImageLayerImplTest, IgnoreIdealContentScale) {
   scoped_ptr<TestablePictureImageLayerImpl> pending_layer(
       CreateLayer(1, PENDING_TREE));