cc: Move RequiresHighResToDraw from tree to lthi.

cc/trees/thread_proxy.cc

 // Copyright 2011 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/trees/thread_proxy.h"
 
 #include <algorithm>
 #include <string>
 
 #include "base/auto_reset.h"
@@ skipping 1322 matching lines @@
 
   // New content always takes priority when the active tree has
   // evicted resources or there is an invalid viewport size.
   if (impl().layer_tree_host_impl->active_tree()->ContentsTexturesPurged() ||
       impl().layer_tree_host_impl->active_tree()->ViewportSizeInvalid() ||
       impl().layer_tree_host_impl->EvictedUIResourcesExist() ||
       impl().input_throttled_until_commit) {
     // Once we enter NEW_CONTENTS_TAKES_PRIORITY mode, visible tiles on active
     // tree might be freed. We need to set RequiresHighResToDraw to ensure that
     // high res tiles will be required to activate pending tree.
-    impl().layer_tree_host_impl->active_tree()->SetRequiresHighResToDraw();
+    impl().layer_tree_host_impl->SetRequiresHighResToDraw();
     priority = NEW_CONTENT_TAKES_PRIORITY;
   }
 
   impl().layer_tree_host_impl->SetTreePriority(priority);
 
   // Only put the scheduler in impl latency prioritization mode if we don't
   // have a scroll listener. This gives the scroll listener a better chance of
   // handling scroll updates within the same frame. The tree itself is still
   // kept in prefer smoothness mode to allow checkerboarding.
   impl().scheduler->SetImplLatencyTakesPriority(
@@ skipping 32 matching lines @@
 
   impl().timing_history.DidActivateSyncTree();
 }
 
 void ThreadProxy::DidManageTiles() {
   DCHECK(IsImplThread());
   impl().scheduler->DidManageTiles();
 }
 
 }  // namespace cc