cc: Do the math for a tile's content rect in layer space once.

cc/test/fake_picture_layer_tiling_client.cc

 // Copyright 2012 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/test/fake_picture_layer_tiling_client.h"
 
 #include <limits>
 
 #include "base/thread_task_runner_handle.h"
 #include "cc/test/fake_picture_pile_impl.h"
@@ skipping 18 matching lines @@
       tile_manager_(
           new FakeTileManager(&tile_manager_client_, resource_pool_.get())),
       pile_(FakePicturePileImpl::CreateInfiniteFilledPile()),
       twin_set_(nullptr),
       twin_tiling_(nullptr),
       has_valid_tile_priorities_(true) {}
 
 FakePictureLayerTilingClient::~FakePictureLayerTilingClient() {
 }
 
-ScopedTilePtr FakePictureLayerTilingClient::CreateTile(float content_scale,
-                                                       const gfx::Rect& rect) {
-  return tile_manager_->CreateTile(tile_size_, rect, 1, 0, 0, 0);
+ScopedTilePtr FakePictureLayerTilingClient::CreateTile(
+    const Tile::CreateInfo& info) {
+  return tile_manager_->CreateTile(info, 0, 0, 0);
 }
 
 void FakePictureLayerTilingClient::SetTileSize(const gfx::Size& tile_size) {
   tile_size_ = tile_size;
 }
 
 gfx::Size FakePictureLayerTilingClient::CalculateTileSize(
     const gfx::Size& /* content_bounds */) const {
   return tile_size_;
 }
@@ skipping 16 matching lines @@
       return twin_set_->tiling_at(i);
   }
   return nullptr;
 }
 
 bool FakePictureLayerTilingClient::RequiresHighResToDraw() const {
   return false;
 }
 
 }  // namespace cc