Move MaxScrollOffset to property_trees

cc/layers/layer.h

 // Copyright 2010 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_LAYERS_LAYER_H_
 #define CC_LAYERS_LAYER_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 253 matching lines @@
   void SetScrollOffset(const gfx::ScrollOffset& scroll_offset);
   void SetScrollCompensationAdjustment(
       const gfx::Vector2dF& scroll_compensation_adjustment);
   gfx::Vector2dF ScrollCompensationAdjustment() const;
 
   gfx::ScrollOffset scroll_offset() const { return scroll_offset_; }
   void SetScrollOffsetFromImplSide(const gfx::ScrollOffset& scroll_offset);
 
   void SetScrollClipLayerId(int clip_layer_id);
   bool scrollable() const { return scroll_clip_layer_id_ != INVALID_ID; }
+  Layer* scroll_clip_layer() const;
 
   void SetUserScrollable(bool horizontal, bool vertical);
   bool user_scrollable_horizontal() const {
     return user_scrollable_horizontal_;
   }
   bool user_scrollable_vertical() const { return user_scrollable_vertical_; }
 
   void AddMainThreadScrollingReasons(uint32_t main_thread_scrolling_reasons);
   void ClearMainThreadScrollingReasons();
   uint32_t main_thread_scrolling_reasons() const {
@@ skipping 506 matching lines @@
 
   std::vector<FrameTimingRequest> frame_timing_requests_;
   bool frame_timing_requests_dirty_;
 
   DISALLOW_COPY_AND_ASSIGN(Layer);
 };
 
 }  // namespace cc
 
 #endif  // CC_LAYERS_LAYER_H_