cc: Remove unnecessary "default" cases from switch statements.

cc/resources/tile_manager_perftest.cc

 // Copyright 2013 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 "base/time/time.h"
 #include "cc/resources/tile.h"
 #include "cc/resources/tile_priority.h"
 #include "cc/test/fake_output_surface.h"
 #include "cc/test/fake_output_surface_client.h"
 #include "cc/test/fake_picture_pile_impl.h"
@@ skipping 82 matching lines @@
                                       0,
                                       true));
       tile->SetPriority(ACTIVE_TREE, priority);
       tile->SetPriority(PENDING_TREE, priority);
       tiles->push_back(tile);
     }
   }
 
   void CreateTiles(int count, TileVector* tiles) {
     // Roughly an equal amount of all bins.
-    int count_per_bin = count / NUM_BINS;
+    int count_per_bin = count / (MAX_BIN + 1);
     CreateBinTiles(count_per_bin, TilePriorityForNowBin(), tiles);
     CreateBinTiles(count_per_bin, TilePriorityForSoonBin(), tiles);
     CreateBinTiles(count_per_bin, TilePriorityForEventualBin(), tiles);
     CreateBinTiles(count - 3 * count_per_bin, TilePriority(), tiles);
   }
 
   void RunManageTilesTest(const std::string test_name,
                           unsigned tile_count) {
     start_time_ = base::TimeTicks();
     num_runs_ = 0;
@@ skipping 22 matching lines @@
 
 TEST_F(TileManagerPerfTest, ManageTiles) {
   RunManageTilesTest("manage_tiles_100", 100);
   RunManageTilesTest("manage_tiles_1000", 1000);
   RunManageTilesTest("manage_tiles_10000", 10000);
 }
 
 }  // namespace
 
 }  // namespace cc