cc: Do not ignore layers without valid priorities during eviction.

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 2952c6a22931c6af20928e6a9fdc0c03a819b841..eb01a47abee72b46e264ffab262b25df6ab4583f 100644
--- a/cc/resources/picture_layer_tiling_unittest.cc
+++ b/cc/resources/picture_layer_tiling_unittest.cc
@@ -1285,8 +1285,11 @@ TEST(PictureLayerTilingTest, TilingEvictionTileIteratorStaticViewport) {
 
   std::vector<Tile*> all_tiles = tiling->AllTilesForTesting();
 
-  PictureLayerTiling::TilingEvictionTileIterator it(
-      tiling.get(), SMOOTHNESS_TAKES_PRIORITY, PictureLayerTiling::NOW);
+  PictureLayerTiling::TilingEvictionTileIterator it(tiling.get(),
+                                                    SMOOTHNESS_TAKES_PRIORITY,
+                                                    PictureLayerTiling::NOW,
+                                                    true,
+                                                    true);
 
   // Tiles don't have resources to evict.
   EXPECT_FALSE(it);
@@ -1301,7 +1304,11 @@ TEST(PictureLayerTilingTest, TilingEvictionTileIteratorStaticViewport) {
   std::set<Tile*> eviction_tiles;
 
   it = PictureLayerTiling::TilingEvictionTileIterator(
-      tiling.get(), SMOOTHNESS_TAKES_PRIORITY, PictureLayerTiling::EVENTUALLY);
+      tiling.get(),
+      SMOOTHNESS_TAKES_PRIORITY,
+      PictureLayerTiling::EVENTUALLY,
+      true,
+      true);
   EXPECT_TRUE(it);
   for (; it; ++it) {
     Tile* tile = *it;
@@ -1312,8 +1319,11 @@ TEST(PictureLayerTilingTest, TilingEvictionTileIteratorStaticViewport) {
     eviction_tiles.insert(tile);
   }
 
-  it = PictureLayerTiling::TilingEvictionTileIterator(
-      tiling.get(), SMOOTHNESS_TAKES_PRIORITY, PictureLayerTiling::SOON);
+  it = PictureLayerTiling::TilingEvictionTileIterator(tiling.get(),
+                                                      SMOOTHNESS_TAKES_PRIORITY,
+                                                      PictureLayerTiling::SOON,
+                                                      true,
+                                                      true);
   EXPECT_TRUE(it);
   for (; it; ++it) {
     Tile* tile = *it;
@@ -1323,8 +1333,11 @@ TEST(PictureLayerTilingTest, TilingEvictionTileIteratorStaticViewport) {
     eviction_tiles.insert(tile);
   }
 
-  it = PictureLayerTiling::TilingEvictionTileIterator(
-      tiling.get(), SMOOTHNESS_TAKES_PRIORITY, PictureLayerTiling::NOW);
+  it = PictureLayerTiling::TilingEvictionTileIterator(tiling.get(),
+                                                      SMOOTHNESS_TAKES_PRIORITY,
+                                                      PictureLayerTiling::NOW,
+                                                      true,
+                                                      true);
   EXPECT_TRUE(it);
   for (; it; ++it) {
     Tile* tile = *it;
@@ -1337,7 +1350,9 @@ TEST(PictureLayerTilingTest, TilingEvictionTileIteratorStaticViewport) {
   it = PictureLayerTiling::TilingEvictionTileIterator(
       tiling.get(),
       SMOOTHNESS_TAKES_PRIORITY,
-      PictureLayerTiling::NOW_AND_REQUIRED_FOR_ACTIVATION);
+      PictureLayerTiling::NOW_AND_REQUIRED_FOR_ACTIVATION,
+      true,
+      true);
   EXPECT_FALSE(it);
 
   EXPECT_GT(all_tiles_set.size(), 0u);