Store recording invalidations in DisplayListRecordingSource, save them via Update.

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 <stddef.h>
 
 #include <algorithm>
 #include <limits>
@@ skipping 4513 matching lines @@
   scoped_ptr<FakeLayerTreeHost> host =
       FakeLayerTreeHost::Create(&host_client, &task_graph_runner);
   host->SetRootLayer(layer);
   DisplayListRecordingSource* recording_source =
       layer->GetDisplayListRecordingSourceForTesting();
 
   int frame_number = 0;
 
   client.set_fill_with_nonsolid_color(true);
 
-  Region invalidation1(layer_rect);
+  recording_source->SetNeedsDisplayRect(layer_rect);
+  Region invalidation1;
   recording_source->UpdateAndExpandInvalidation(
       &client, &invalidation1, layer_bounds, layer_rect, frame_number++,
       DisplayListRecordingSource::RECORD_NORMALLY);
 
   scoped_refptr<DisplayListRasterSource> raster_source1 =
       recording_source->CreateRasterSource(true);
 
   SetupPendingTree(raster_source1);
   ActivateTree();
   bool update_lcd_text = false;
   host_impl_.active_tree()->UpdateDrawProperties(update_lcd_text);
 
   // We've started with a solid layer that contains some tilings.
   ASSERT_TRUE(active_layer_->tilings());
   EXPECT_NE(0u, active_layer_->tilings()->num_tilings());
 
   client.set_fill_with_nonsolid_color(false);
 
-  Region invalidation2(layer_rect);
+  recording_source->SetNeedsDisplayRect(layer_rect);
+  Region invalidation2;
   recording_source->UpdateAndExpandInvalidation(
       &client, &invalidation2, layer_bounds, layer_rect, frame_number++,
       DisplayListRecordingSource::RECORD_NORMALLY);
 
   scoped_refptr<DisplayListRasterSource> raster_source2 =
       recording_source->CreateRasterSource(true);
 
   SetupPendingTree(raster_source2);
   ActivateTree();
 
@@ skipping 428 matching lines @@
   // New low res tiling.
   EXPECT_TRUE(tilings->tiling_at(2)->may_contain_low_resolution_tiles());
 
   // This tiling will be high res now, it won't contain low res content since it
   // was all destroyed.
   EXPECT_FALSE(tilings->tiling_at(1)->may_contain_low_resolution_tiles());
 }
 
 }  // namespace
 }  // namespace cc