cc: Re-enable tile eviction iterator test with occlusion.

cc/resources/tile_manager_unittest.cc

Index: cc/resources/tile_manager_unittest.cc
diff --git a/cc/resources/tile_manager_unittest.cc b/cc/resources/tile_manager_unittest.cc
index a9a983691ae63a93dd14ba131994cbd891db0b40..41c15cda5518f3033fdb649f4558fe901c2c0ec3 100644
--- a/cc/resources/tile_manager_unittest.cc
+++ b/cc/resources/tile_manager_unittest.cc
@@ -928,15 +928,8 @@ TEST_F(TileManagerTilePriorityQueueTest, EvictionTilePriorityQueue) {
   EXPECT_EQ(all_tiles, new_content_tiles);
 }
 
-#if defined(OS_WIN)
-#define MAYBE_EvictionTilePriorityQueueWithOcclusion \
-  DISABLED_EvictionTilePriorityQueueWithOcclusion
-#else
-#define MAYBE_EvictionTilePriorityQueueWithOcclusion \
-  EvictionTilePriorityQueueWithOcclusion
-#endif
 TEST_F(TileManagerTilePriorityQueueTest,
-       MAYBE_EvictionTilePriorityQueueWithOcclusion) {
+       EvictionTilePriorityQueueWithOcclusion) {
   gfx::Size tile_size(102, 102);
   gfx::Size layer_bounds(1000, 1000);