cc: Reduced test case for crbug.com/405427

cc/resources/picture_layer_tiling_unittest.cc

Index: cc/resources/picture_layer_tiling_unittest.cc
diff --git a/cc/resources/picture_layer_tiling_unittest.cc b/cc/resources/picture_layer_tiling_unittest.cc
index a8caf48904b835f7e1c8905379fbedcfe6b1fb85..3ec2a57df0c45d09be7f544dd558f3596fff426f 100644
--- a/cc/resources/picture_layer_tiling_unittest.cc
+++ b/cc/resources/picture_layer_tiling_unittest.cc
@@ -53,6 +53,7 @@ static void UpdateAllTilePriorities(PictureLayerTilingSet* set,
 class TestablePictureLayerTiling : public PictureLayerTiling {
  public:
   using PictureLayerTiling::SetLiveTilesRect;
+  using PictureLayerTiling::UpdateTilesToCurrentPile;
   using PictureLayerTiling::TileAt;
 
   static scoped_ptr<TestablePictureLayerTiling> Create(
@@ -210,6 +211,17 @@ TEST_F(PictureLayerTilingIteratorTest, ResizeDeletesTiles) {
   EXPECT_FALSE(tiling_->TileAt(0, 0));
 }
 
+TEST_F(PictureLayerTilingIteratorTest, TestNameTBD) {
+  Initialize(gfx::Size(256, 256), 1, gfx::Size(6920, 972));
+  SetLiveRectAndVerifyTiles(gfx::Rect(6920, 972));
+
+  tiling_->UpdateTilesToCurrentPile(gfx::Rect(), gfx::Size(6859, 972));
+  tiling_->UpdateTilesToCurrentPile(gfx::Rect(), gfx::Size(6540, 900));
+  tiling_->UpdateTilesToCurrentPile(gfx::Rect(), gfx::Size(6920, 972));
+
+  SetLiveRectAndVerifyTiles(gfx::Rect(6920, 972));
+}
+
 TEST_F(PictureLayerTilingIteratorTest, ResizeOverBorderPixelsDeletesTiles) {
   // Verifies that a resize with invalidation for newly exposed pixels will
   // deletes tiles that intersect that invalidation.