cc: Change the activation/ready for draw check from layer to queue.

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 <cmath>
 #include <limits>
 #include <set>
@@ skipping 1204 matching lines @@
 }
 
 bool PictureLayerImpl::IsOnActiveOrPendingTree() const {
   return !layer_tree_impl()->IsRecycleTree();
 }
 
 bool PictureLayerImpl::HasValidTilePriorities() const {
   return IsOnActiveOrPendingTree() && IsDrawnRenderSurfaceLayerListMember();
 }
 
-bool PictureLayerImpl::AllTilesRequiredAreReadyToDraw(
-    TileRequirementCheck is_tile_required_callback) const {
-  if (!HasValidTilePriorities())
-    return true;
-
-  if (!tilings_)
-    return true;
-
-  if (visible_rect_for_tile_priority_.IsEmpty())
-    return true;
-
-  gfx::Rect rect = viewport_rect_for_tile_priority_in_content_space_;
-  rect.Intersect(visible_rect_for_tile_priority_);
-
-  // The high resolution tiling is the only tiling that can mark tiles as
-  // requiring either draw or activation. There is an explicit check in those
-  // callbacks to return false if they are not high resolution tilings. This
-  // check needs to remain since there are other callers of that function that
-  // rely on it. However, for the purposes of this function, we don't have to
-  // check other tilings.
-  PictureLayerTiling* tiling =
-      tilings_->FindTilingWithResolution(HIGH_RESOLUTION);
-  if (!tiling)
-    return true;
-
-  for (PictureLayerTiling::CoverageIterator iter(tiling, 1.f, rect); iter;
-       ++iter) {
-    const Tile* tile = *iter;
-    // A null tile (i.e. missing recording) can just be skipped.
-    // TODO(vmpstr): Verify this is true if we create tiles in raster
-    // iterators.
-    if (!tile)
-      continue;
-
-    // We can't check tile->required_for_activation, because that value might
-    // be out of date. It is updated in the raster/eviction iterators.
-    // TODO(vmpstr): Remove the comment once you can't access this information
-    // from the tile.
-    if ((tiling->*is_tile_required_callback)(tile) && !tile->IsReadyToDraw()) {
-      TRACE_EVENT_INSTANT0("cc", "Tile required, but not ready to draw.",
-                           TRACE_EVENT_SCOPE_THREAD);
-      return false;
-    }
-  }
-
-  return true;
-}
-
-bool PictureLayerImpl::AllTilesRequiredForActivationAreReadyToDraw() const {
-  if (!layer_tree_impl()->IsPendingTree())
-    return true;
-
-  return AllTilesRequiredAreReadyToDraw(
-      &PictureLayerTiling::IsTileRequiredForActivationIfVisible);
-}
-
-bool PictureLayerImpl::AllTilesRequiredForDrawAreReadyToDraw() const {
-  if (!layer_tree_impl()->IsActiveTree())
-    return true;
-
-  return AllTilesRequiredAreReadyToDraw(
-      &PictureLayerTiling::IsTileRequiredForDrawIfVisible);
-}
-
 }  // namespace cc