cc: Make tiling interest rect calc based on viewport.

cc/resources/picture_layer_tiling_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 "cc/debug/lap_timer.h"
 #include "cc/resources/picture_layer_tiling.h"
 #include "cc/resources/resource_provider.h"
 #include "cc/resources/scoped_resource.h"
 #include "cc/test/fake_output_surface.h"
 #include "cc/test/fake_output_surface_client.h"
@@ skipping 34 matching lines @@
   }
 
   void SetUp() override {
     LayerTreeSettings defaults;
     picture_layer_tiling_client_.SetTileSize(gfx::Size(256, 256));
     scoped_refptr<FakePicturePileImpl> pile =
         FakePicturePileImpl::CreateFilledPileWithDefaultTileSize(
             gfx::Size(256 * 50, 256 * 50));
     picture_layer_tiling_ = PictureLayerTiling::Create(
         PENDING_TREE, 1.f, pile, &picture_layer_tiling_client_,
-        defaults.max_tiles_for_interest_area,
+        defaults.tiling_interest_area_viewport_multiplier,
         defaults.skewport_target_time_in_seconds,
         defaults.skewport_extrapolation_limit_in_content_pixels);
     picture_layer_tiling_->CreateAllTilesForTesting();
   }
 
   void TearDown() override { picture_layer_tiling_.reset(NULL); }
 
   void RunInvalidateTest(const std::string& test_name, const Region& region) {
     timer_.Reset();
     do {
@@ skipping 99 matching lines @@
   RunComputeTilePriorityRectsStationaryTest("rotation", transform);
   RunComputeTilePriorityRectsScrollingTest("rotation", transform);
 
   transform.ApplyPerspectiveDepth(10);
   RunComputeTilePriorityRectsStationaryTest("perspective", transform);
   RunComputeTilePriorityRectsScrollingTest("perspective", transform);
 }
 
 }  // namespace
 }  // namespace cc