cc: Explicitly invalidate all dropped recordings on the main thread.

cc/resources/picture_layer_tiling_unittest.cc

 // Copyright 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "cc/resources/picture_layer_tiling.h"
 
 #include <limits>
 #include <set>
 
 #include "cc/base/math_util.h"
@@ skipping 171 matching lines @@
   }
 
  protected:
   FakePictureLayerTilingClient client_;
   scoped_ptr<TestablePictureLayerTiling> tiling_;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(PictureLayerTilingIteratorTest);
 };
 
-TEST_F(PictureLayerTilingIteratorTest, ResizeDeletesTiles) {

[enne (OOO), 2014/07/11 00:12:04]

Does what this test tested happen somewhere else now?

[danakj, 2014/07/11 17:06:16]

We don't do this anymore. The PicturePile invalidates the tiles instead if they
aren't re-recorded, and we have tests showing that it does indeed generate
invaliadtion.

-  // Verifies that a resize deletes tiles that used to be on the edge.
-  gfx::Size tile_size(100, 100);
-  gfx::Size original_layer_size(10, 10);
-  Initialize(tile_size, 1.f, original_layer_size);
-  SetLiveRectAndVerifyTiles(gfx::Rect(original_layer_size));
-
-  // Tiling only has one tile, since its total size is less than one.
-  EXPECT_TRUE(tiling_->TileAt(0, 0));
-
-  // Stop creating tiles so that any invalidations are left as holes.
-  client_.set_allow_create_tile(false);
-
-  tiling_->SetLayerBounds(gfx::Size(200, 200));
-  EXPECT_FALSE(tiling_->TileAt(0, 0));
-}
-
 TEST_F(PictureLayerTilingIteratorTest, LiveTilesExactlyCoverLiveTileRect) {
   Initialize(gfx::Size(100, 100), 1, gfx::Size(1099, 801));
   SetLiveRectAndVerifyTiles(gfx::Rect(100, 100));
   SetLiveRectAndVerifyTiles(gfx::Rect(101, 99));
   SetLiveRectAndVerifyTiles(gfx::Rect(1099, 1));
   SetLiveRectAndVerifyTiles(gfx::Rect(1, 801));
   SetLiveRectAndVerifyTiles(gfx::Rect(1099, 1));
   SetLiveRectAndVerifyTiles(gfx::Rect(201, 800));
 }
 
@@ skipping 1593 matching lines @@
   EXPECT_FLOAT_EQ(0.f, priority.distance_to_visible);
   EXPECT_EQ(TilePriority::NOW, priority.priority_bin);
 
   priority = tiling->TileAt(1, 0)->priority(ACTIVE_TREE);
   EXPECT_FLOAT_EQ(0.f, priority.distance_to_visible);
   EXPECT_EQ(TilePriority::NOW, priority.priority_bin);
 }
 
 }  // namespace
 }  // namespace cc