Don't use DF text during animations

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 <stddef.h>
 #include <stdint.h>
 
 #include <algorithm>
@@ skipping 459 matching lines @@
 
   DCHECK(raster_page_scale_);
   DCHECK(raster_device_scale_);
   DCHECK(raster_source_scale_);
   DCHECK(raster_contents_scale_);
   DCHECK(low_res_raster_contents_scale_);
 
   was_screen_space_transform_animating_ =
       draw_properties().screen_space_transform_is_animating;
 
-  if (screen_space_transform_is_animating())
-    raster_source_->SetShouldAttemptToUseDistanceFieldText();
-
   double current_frame_time_in_seconds =
       (layer_tree_impl()->CurrentBeginFrameArgs().frame_time -
        base::TimeTicks()).InSecondsF();
   UpdateViewportRectForTilePriorityInContentSpace();
 
   // The tiling set can require tiles for activation any of the following
   // conditions are true:
   // - This layer produced a high-res or non-ideal-res tile last frame.
   // - We're in requires high res to draw mode.
   // - We're not in smoothness takes priority mode.
@@ skipping 849 matching lines @@
 bool PictureLayerImpl::IsOnActiveOrPendingTree() const {
   return !layer_tree_impl()->IsRecycleTree();
 }
 
 bool PictureLayerImpl::HasValidTilePriorities() const {
   return IsOnActiveOrPendingTree() &&
          is_drawn_render_surface_layer_list_member();
 }
 
 }  // namespace cc