CC: Add a scheduled action for ManageTiles

cc/layers/picture_layer_impl.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/layers/picture_layer_impl.h"
 
 #include <algorithm>
 
 #include "base/time/time.h"
 #include "cc/base/math_util.h"
@@ skipping 301 matching lines @@
   for (size_t i = 0; i < tilings_->num_tilings(); ++i) {
     if (tilings_->tiling_at(i)->NeedsUpdateForFrameAtTime(
             current_frame_time_in_seconds)) {
       tiling_needs_update = true;
       break;
     }
   }
   if (!tiling_needs_update)
     return;
 
-  // At this point, tile priorities are going to be modified.
-  layer_tree_impl()->WillModifyTilePriorities();
-
   UpdateLCDTextStatus(can_use_lcd_text());
 
   gfx::Transform current_screen_space_transform = screen_space_transform();
 
   gfx::Size viewport_size = layer_tree_impl()->DrawViewportSize();
   gfx::Rect viewport_in_content_space;
   gfx::Transform screen_to_layer(gfx::Transform::kSkipInitialization);
   if (screen_space_transform().GetInverse(&screen_to_layer)) {
     viewport_in_content_space =
         gfx::ToEnclosingRect(MathUtil::ProjectClippedRect(
@@ skipping 17 matching lines @@
       current_screen_space_transform,
       current_frame_time_in_seconds,
       max_tiles_for_interest_area);
 
   if (layer_tree_impl()->IsPendingTree())
     MarkVisibleResourcesAsRequired();
 
   last_screen_space_transform_ = current_screen_space_transform;
   last_bounds_ = bounds();
   last_content_scale_ = contents_scale_x();
+
+  // Tile priorities were modified.
+  layer_tree_impl()->DidModifyTilePriorities();
 }
 
 void PictureLayerImpl::DidBecomeActive() {
   LayerImpl::DidBecomeActive();
   tilings_->DidBecomeActive();
-  layer_tree_impl()->WillModifyTilePriorities();
+  layer_tree_impl()->DidModifyTilePriorities();
 }
 
 void PictureLayerImpl::DidBeginTracing() {
   pile_->DidBeginTracing();
 }
 
 void PictureLayerImpl::DidLoseOutputSurface() {
   if (tilings_)
     tilings_->RemoveAllTilings();
 
@@ skipping 702 matching lines @@
     coverage_tiles->Append(tile_data.release());
   }
   state->Set("coverage_tiles", coverage_tiles.release());
 }
 
 size_t PictureLayerImpl::GPUMemoryUsageInBytes() const {
   return tilings_->GPUMemoryUsageInBytes();
 }
 
 }  // namespace cc