Don't use DF text during animations

cc/playback/raster_source.h

 // Copyright 2014 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.
 
 #ifndef CC_PLAYBACK_RASTER_SOURCE_H_
 #define CC_PLAYBACK_RASTER_SOURCE_H_
 
 #include <stddef.h>
 
 #include <memory>
@@ skipping 77 matching lines @@
   // Return true iff this raster source can raster the given rect in layer
   // space.
   bool CoversRect(const gfx::Rect& layer_rect) const;
 
   // Returns true if this raster source has anything to rasterize.
   virtual bool HasRecordings() const;
 
   // Valid rectangle in which everything is recorded and can be rastered from.
   virtual gfx::Rect RecordedViewport() const;
 
-  // Informs the raster source that it should attempt to use distance field text
-  // during rasterization.
-  virtual void SetShouldAttemptToUseDistanceFieldText();
-
-  // Return true iff this raster source would benefit from using distance
-  // field text.
-  virtual bool ShouldAttemptToUseDistanceFieldText() const;
-
   // Tracing functionality.
   virtual void DidBeginTracing();
   virtual void AsValueInto(base::trace_event::TracedValue* array) const;
   virtual sk_sp<SkPicture> GetFlattenedPicture();
   virtual size_t GetPictureMemoryUsage() const;
 
   // Return true if LCD anti-aliasing may be used when rastering text.
   virtual bool CanUseLCDText() const;
 
   scoped_refptr<RasterSource> CreateCloneWithoutLCDText() const;
@@ skipping 30 matching lines @@
   const size_t painter_reported_memory_usage_;
   const SkColor background_color_;
   const bool requires_clear_;
   const bool can_use_lcd_text_;
   const bool is_solid_color_;
   const SkColor solid_color_;
   const gfx::Rect recorded_viewport_;
   const gfx::Size size_;
   const bool clear_canvas_with_debug_color_;
   const int slow_down_raster_scale_factor_for_debug_;
-  // TODO(enne/vmiura): this has a read/write race between raster and compositor
-  // threads with multi-threaded Ganesh.  Make this const or remove it.
-  bool should_attempt_to_use_distance_field_text_;
 
   // In practice, this is only set once before raster begins, so it's ok with
   // respect to threading.
   ImageDecodeController* image_decode_controller_;
 
  private:
   void RasterCommon(SkCanvas* canvas, SkPicture::AbortCallback* callback) const;
 
   void PrepareForPlaybackToCanvas(SkCanvas* canvas) const;
 
   DISALLOW_COPY_AND_ASSIGN(RasterSource);
 };
 
 }  // namespace cc
 
 #endif  // CC_PLAYBACK_RASTER_SOURCE_H_