Update from https://crrev.com/307758

cc/test/layer_tree_pixel_resource_test.h

Index: cc/test/layer_tree_pixel_resource_test.h
diff --git a/cc/test/layer_tree_pixel_resource_test.h b/cc/test/layer_tree_pixel_resource_test.h
index 08900a2a6398acaf2fbca5fec60b373658ea80f5..16b7ca9c7ddec48af2c86dc7dc7893e0123b2e3e 100644
--- a/cc/test/layer_tree_pixel_resource_test.h
+++ b/cc/test/layer_tree_pixel_resource_test.h
@@ -33,6 +33,7 @@ enum PixelResourceTestCase {
 class LayerTreeHostPixelResourceTest : public LayerTreePixelTest {
  public:
   explicit LayerTreeHostPixelResourceTest(PixelResourceTestCase test_case);
+  LayerTreeHostPixelResourceTest();
 
   void CreateResourceAndTileTaskWorkerPool(
       LayerTreeHostImpl* host_impl,
@@ -55,10 +56,11 @@ class LayerTreeHostPixelResourceTest : public LayerTreePixelTest {
   unsigned staging_texture_target_;
   unsigned draw_texture_target_;
   TileTaskWorkerPoolOption resource_pool_option_;
+  bool initialized_;
 
- private:
   void InitializeFromTestCase(PixelResourceTestCase test_case);
 
+ private:
   PixelResourceTestCase test_case_;
 };