cc: Do not cleanup tiles with raster tasks.

cc/resources/picture_layer_tiling_perftest.cc

Index: cc/resources/picture_layer_tiling_perftest.cc
diff --git a/cc/resources/picture_layer_tiling_perftest.cc b/cc/resources/picture_layer_tiling_perftest.cc
index 575e13e5d6984ac67394ffddd461bc2f6b165fb3..f0be5bf0717684e06751e6b6730b3198886914d0 100644
--- a/cc/resources/picture_layer_tiling_perftest.cc
+++ b/cc/resources/picture_layer_tiling_perftest.cc
@@ -45,6 +45,7 @@ class PictureLayerTilingPerfTest : public testing::Test {
   virtual void SetUp() OVERRIDE {
     picture_layer_tiling_client_.SetTileSize(gfx::Size(256, 256));
     picture_layer_tiling_client_.set_max_tiles_for_interest_area(250);
+    picture_layer_tiling_client_.set_tree(PENDING_TREE);
     picture_layer_tiling_ = PictureLayerTiling::Create(
         1, gfx::Size(256 * 50, 256 * 50), &picture_layer_tiling_client_);
     picture_layer_tiling_->CreateAllTilesForTesting();
@@ -135,6 +136,7 @@ class PictureLayerTilingPerfTest : public testing::Test {
     gfx::Size bounds(viewport.size());
     picture_layer_tiling_ =
         PictureLayerTiling::Create(1, bounds, &picture_layer_tiling_client_);
+    picture_layer_tiling_client_.set_tree(ACTIVE_TREE);
     picture_layer_tiling_->UpdateTilePriorities(
         ACTIVE_TREE, viewport, 1.0f, 1.0, NULL, NULL, gfx::Transform());
 
@@ -159,6 +161,7 @@ class PictureLayerTilingPerfTest : public testing::Test {
     gfx::Size bounds(10000, 10000);
     picture_layer_tiling_ =
         PictureLayerTiling::Create(1, bounds, &picture_layer_tiling_client_);
+    picture_layer_tiling_client_.set_tree(ACTIVE_TREE);
     picture_layer_tiling_->UpdateTilePriorities(
         ACTIVE_TREE, viewport, 1.0f, 1.0, NULL, NULL, gfx::Transform());
 
@@ -188,6 +191,7 @@ class PictureLayerTilingPerfTest : public testing::Test {
     gfx::Size bounds(viewport.size());
     picture_layer_tiling_ =
         PictureLayerTiling::Create(1, bounds, &picture_layer_tiling_client_);
+    picture_layer_tiling_client_.set_tree(ACTIVE_TREE);
     picture_layer_tiling_->UpdateTilePriorities(
         ACTIVE_TREE, viewport, 1.0f, 1.0, NULL, NULL, gfx::Transform());
 
@@ -217,6 +221,7 @@ class PictureLayerTilingPerfTest : public testing::Test {
     gfx::Size bounds(10000, 10000);
     picture_layer_tiling_ =
         PictureLayerTiling::Create(1, bounds, &picture_layer_tiling_client_);
+    picture_layer_tiling_client_.set_tree(ACTIVE_TREE);
     picture_layer_tiling_->UpdateTilePriorities(
         ACTIVE_TREE, viewport, 1.0f, 1.0, NULL, NULL, gfx::Transform());