cc: Replace recorded region with direct map lookup

cc/test/fake_picture_pile_impl.h

Index: cc/test/fake_picture_pile_impl.h
diff --git a/cc/test/fake_picture_pile_impl.h b/cc/test/fake_picture_pile_impl.h
index d4ab8e09c07120b0768bd59f341cf46d3eae7a35..582c4cfe44a9ea86b49b9f2858083c89b3e06efe 100644
--- a/cc/test/fake_picture_pile_impl.h
+++ b/cc/test/fake_picture_pile_impl.h
@@ -16,17 +16,13 @@ class FakePicturePileImpl : public PicturePileImpl {
   static scoped_refptr<FakePicturePileImpl> CreateFilledPile(
       const gfx::Size& tile_size,
       const gfx::Size& layer_bounds);
-
   static scoped_refptr<FakePicturePileImpl> CreateEmptyPile(
       const gfx::Size& tile_size,
       const gfx::Size& layer_bounds);
-
-  static scoped_refptr<FakePicturePileImpl> CreatePileWithRecordedRegion(
+  static scoped_refptr<FakePicturePileImpl> CreateEmptyPileThatThinksItHasTiles(
       const gfx::Size& tile_size,
-      const gfx::Size& layer_bounds,
-      const Region& recorded_region);
-
-  static scoped_refptr<FakePicturePileImpl> CreatePile();
+      const gfx::Size& layer_bounds);
+  static scoped_refptr<FakePicturePileImpl> CreateInfiniteFilledPile();
 
   TilingData& tiling() { return tiling_; }