Remove runtime toggling of throttling frames

cc/trees/layer_tree_host.h

 // 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.
 
 #ifndef CC_TREES_LAYER_TREE_HOST_H_
 #define CC_TREES_LAYER_TREE_HOST_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 254 matching lines @@
   SkColor background_color() const { return background_color_; }
   void set_background_color(SkColor color) { background_color_ = color; }
 
   void set_has_transparent_background(bool transparent) {
     has_transparent_background_ = transparent;
   }
 
   void SetVisible(bool visible);
   bool visible() const { return visible_; }
 
-  void SetThrottleFrameProduction(bool throttle);
-
   void StartPageScaleAnimation(const gfx::Vector2d& target_offset,
                                bool use_anchor,
                                float scale,
                                base::TimeDelta duration);
 
   void ApplyScrollAndScale(ScrollAndScaleSet* info);
   void SetImplTransform(const gfx::Transform& transform);
 
   void SetDeviceScaleFactor(float device_scale_factor);
   void SetPaintedDeviceScaleFactor(float painted_device_scale_factor);
@@ skipping 302 matching lines @@
 
   uint32_t surface_id_namespace_;
   uint32_t next_surface_sequence_;
 
   DISALLOW_COPY_AND_ASSIGN(LayerTreeHost);
 };
 
 }  // namespace cc
 
 #endif  // CC_TREES_LAYER_TREE_HOST_H_