cc: Use multiple PrepareTiles approaches

cc/layers/picture_layer_impl_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 "cc/layers/picture_layer_impl.h"
 
 #include <algorithm>
 #include <limits>
 #include <set>
 #include <utility>
@@ skipping 2081 matching lines @@
   // No invalidation.
   SetupDefaultTreesWithFixedTileSize(layer_bounds, tile_size, Region());
 
   // Verify active tree not ready.
   Tile* some_active_tile =
       active_layer_->HighResTiling()->AllTilesForTesting()[0];
   EXPECT_FALSE(some_active_tile->IsReadyToDraw());
 
   // When high res are required, all tiles in active high res tiling should be
   // required for activation.
-  host_impl_.SetRequiresHighResToDraw();
+  host_impl_.SetRequiresHighResToDraw(true);
 
   pending_layer_->HighResTiling()->UpdateAllRequiredStateForTesting();
   pending_layer_->LowResTiling()->UpdateAllRequiredStateForTesting();
   active_layer_->HighResTiling()->UpdateAllRequiredStateForTesting();
   active_layer_->LowResTiling()->UpdateAllRequiredStateForTesting();
 
   EXPECT_TRUE(pending_layer_->HighResTiling()->AllTilesForTesting().empty());
   EXPECT_TRUE(pending_layer_->LowResTiling()->AllTilesForTesting().empty());
   AssertAllTilesRequired(active_layer_->HighResTiling());
   AssertNoTilesRequired(active_layer_->LowResTiling());
@@ skipping 2652 matching lines @@
       FakePicturePileImpl::CreateFilledPile(tile_size, layer_bounds);
   scoped_refptr<FakePicturePileImpl> active_pile =
       FakePicturePileImpl::CreateFilledPile(tile_size, layer_bounds);
 
   SetupTrees(pending_pile, active_pile);
 
   Region invalidation;
   gfx::Rect viewport = gfx::Rect(0, 0, 100, 100);
   gfx::Transform transform;
 
-  host_impl_.SetRequiresHighResToDraw();
+  host_impl_.SetRequiresHighResToDraw(true);
 
   // Update tiles.
   pending_layer_->draw_properties().visible_content_rect = viewport;
   pending_layer_->draw_properties().screen_space_transform = transform;
   SetupDrawPropertiesAndUpdateTiles(pending_layer_, 1.f, 1.f, 1.f, 1.f, 0.f,
                                     false);
   pending_layer_->HighResTiling()->UpdateAllRequiredStateForTesting();
 
   // Ensure we can't activate.
   EXPECT_FALSE(host_impl_.tile_manager()->IsReadyToActivate());
@@ skipping 302 matching lines @@
   result = layer->CalculateTileSize(gfx::Size(447, 400));
   EXPECT_EQ(result.width(), 448);
   EXPECT_EQ(result.height(), 448);
   result = layer->CalculateTileSize(gfx::Size(500, 499));
   EXPECT_EQ(result.width(), 512);
   EXPECT_EQ(result.height(), 500 + 2);
 }
 
 }  // namespace
 }  // namespace cc