cc: Replace recorded region with direct map lookup

cc/resources/prioritized_tile_set_unittest.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 <algorithm>
 #include <vector>
 
 #include "cc/resources/managed_tile_state.h"
 #include "cc/resources/prioritized_tile_set.h"
 #include "cc/resources/tile.h"
@@ skipping 43 matching lines @@
     CHECK(output_surface_->BindToClient(&output_surface_client_));
 
     resource_provider_ =
         ResourceProvider::Create(output_surface_.get(),
                                  NULL,
                                  0,
                                  false,
                                  1).Pass();
     tile_manager_.reset(
         new FakeTileManager(&tile_manager_client_, resource_provider_.get()));
-    picture_pile_ = FakePicturePileImpl::CreatePile();
+    picture_pile_ = FakePicturePileImpl::CreateInfiniteFilledPile();
   }
 
   scoped_refptr<Tile> CreateTile() {
     return tile_manager_->CreateTile(picture_pile_.get(),
                                      settings_.default_tile_size,
                                      gfx::Rect(),
                                      gfx::Rect(),
                                      1.0,
                                      0,
                                      0,
@@ skipping 643 matching lines @@
 
   set.Clear();
 
   PrioritizedTileSet::Iterator empty_it(&set, true);
   EXPECT_FALSE(empty_it);
 }
 
 }  // namespace
 }  // namespace cc