cc: Update picture pile on tiles to prevent memory leak

cc/picture_layer_tiling_set.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/picture_layer_tiling_set.h"
 
 namespace cc {
 
 namespace {
 
@@ skipping 244 matching lines @@
         tree,
         device_viewport,
         layer_content_scale_x,
         layer_content_scale_y,
         last_screen_transform,
         current_screen_transform,
         time_delta);
   }
 }
 
-void PictureLayerTilingSet::MoveTilePriorities(WhichTree src_tree,
-                                               WhichTree dst_tree) {
+void PictureLayerTilingSet::DidBecomeActive() {
   for (size_t i = 0; i < tilings_.size(); ++i)
-    tilings_[i]->MoveTilePriorities(src_tree, dst_tree);
+    tilings_[i]->DidBecomeActive();
 }
 
 }  // namespace cc