cc: Start using raster/eviction iterators in tile manager

cc/test/fake_tile_manager.cc

Index: cc/test/fake_tile_manager.cc
diff --git a/cc/test/fake_tile_manager.cc b/cc/test/fake_tile_manager.cc
index d197c3f1a10e1599be2af0615095c9bdfda6f6ed..114aa887bc987dae5147ed09342e388ee8146dfb 100644
--- a/cc/test/fake_tile_manager.cc
+++ b/cc/test/fake_tile_manager.cc
@@ -93,11 +93,9 @@ FakeTileManager::~FakeTileManager() {}
 void FakeTileManager::AssignMemoryToTiles(
     const GlobalStateThatImpactsTilePriority& state) {
   tiles_for_raster.clear();
-  all_tiles.Clear();
 
   SetGlobalStateForTesting(state);
-  GetTilesWithAssignedBins(&all_tiles);
-  AssignGpuMemoryToTiles(&all_tiles, &tiles_for_raster);
+  AssignGpuMemoryToTiles(&tiles_for_raster);
 }
 
 bool FakeTileManager::HasBeenAssignedMemory(Tile* tile) {