cc: Speed up CleanUpImageDecodeTasks a bit.

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 28 matching lines @@
     output_surface_ = FakeOutputSurface::Create3d();
     CHECK(output_surface_->BindToClient(&output_surface_client_));
 
     resource_provider_ = ResourceProvider::Create(output_surface_.get(), 0);
     tile_manager_ = make_scoped_ptr(
         new FakeTileManager(&tile_manager_client_, resource_provider_.get()));
 
     GlobalStateThatImpactsTilePriority state;
     gfx::Size tile_size = settings_.default_tile_size;
     state.memory_limit_in_bytes =
-        10000 * 4 * tile_size.width() * tile_size.height();
+        10000u * 4u *
+        static_cast<size_t>(tile_size.width() * tile_size.height());
+    state.num_resources_limit = 10000;
     state.memory_limit_policy = ALLOW_ANYTHING;
     state.tree_priority = SMOOTHNESS_TAKES_PRIORITY;
 
     tile_manager_->SetGlobalState(state);
     picture_pile_ = FakePicturePileImpl::CreatePile();
   }
 
   virtual void TearDown() OVERRIDE {
     tile_manager_.reset(NULL);
     picture_pile_ = NULL;
@@ skipping 81 matching lines @@
              i += 100 / priority_change_percent) {
           Tile* tile = tiles[i].first;
           ManagedTileBin bin = GetNextBin(tiles[i].second);
           tile->SetPriority(ACTIVE_TREE, GetTilePriorityFromBin(bin));
           tile->SetPriority(PENDING_TREE, GetTilePriorityFromBin(bin));
           tiles[i].second = bin;
         }
       }
 
       tile_manager_->ManageTiles();
+      tile_manager_->CheckForCompletedTasks();
       timer_.NextLap();
     } while (!timer_.HasTimeLimitExpired());
 
     perf_test::PrintResult("manage_tiles", "", test_name,
                            timer_.LapsPerSecond(), "runs/s", true);
   }
 
  private:
   FakeTileManagerClient tile_manager_client_;
   LayerTreeSettings settings_;
@@ skipping 13 matching lines @@
   RunManageTilesTest("1000_10", 1000, 10);
   RunManageTilesTest("10000_10", 10000, 10);
   RunManageTilesTest("100_100", 100, 100);
   RunManageTilesTest("1000_100", 1000, 100);
   RunManageTilesTest("10000_100", 10000, 100);
 }
 
 }  // namespace
 
 }  // namespace cc