Use scroll-boundary-behavior to control overscroll-refresh/glow on android.

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 42 matching lines @@
 class Layer;
 class LayerTreeHostClient;
 class LayerTreeHostImpl;
 class LayerTreeHostImplClient;
 class LayerTreeHostSingleThreadClient;
 class LayerTreeMutator;
 class MutatorEvents;
 class MutatorHost;
 struct PendingPageScaleAnimation;
 class RenderingStatsInstrumentation;
+struct ScrollBoundaryBehavior;
 class TaskGraphRunner;
 class UIResourceManager;
 struct RenderingStats;
 struct ScrollAndScaleSet;
 
 class CC_EXPORT LayerTreeHost
     : public NON_EXPORTED_BASE(viz::SurfaceReferenceOwner),
       public NON_EXPORTED_BASE(MutatorHostClient) {
  public:
   struct CC_EXPORT InitParams {
@@ skipping 214 matching lines @@
 
   void SetViewportSize(
       const gfx::Size& device_viewport_size,
       const viz::LocalSurfaceId& local_surface_id = viz::LocalSurfaceId());
   gfx::Size device_viewport_size() const { return device_viewport_size_; }
 
   void SetBrowserControlsHeight(float top_height,
                                 float bottom_height,
                                 bool shrink);
   void SetBrowserControlsShownRatio(float ratio);
+  void SetScrollBoundaryBehavior(
+      const ScrollBoundaryBehavior& scroll_boundary_behavior);
 
   void SetPageScaleFactorAndLimits(float page_scale_factor,
                                    float min_page_scale_factor,
                                    float max_page_scale_factor);
   float page_scale_factor() const { return page_scale_factor_; }
   float min_page_scale_factor() const { return min_page_scale_factor_; }
   float max_page_scale_factor() const { return max_page_scale_factor_; }
 
   void set_background_color(SkColor color) { background_color_ = color; }
   SkColor background_color() const { return background_color_; }
@@ skipping 289 matching lines @@
   viz::SurfaceSequenceGenerator surface_sequence_generator_;
   uint32_t num_consecutive_frames_without_slow_paths_ = 0;
 
   scoped_refptr<Layer> root_layer_;
 
   ViewportLayers viewport_layers_;
 
   float top_controls_height_ = 0.f;
   float top_controls_shown_ratio_ = 0.f;
   bool browser_controls_shrink_blink_size_ = false;
+  ScrollBoundaryBehavior scroll_boundary_behavior_;
 
   float bottom_controls_height_ = 0.f;
 
   float device_scale_factor_ = 1.f;
   float painted_device_scale_factor_ = 1.f;
   float recording_scale_factor_ = 1.f;
   float page_scale_factor_ = 1.f;
   float min_page_scale_factor_ = 1.f;
   float max_page_scale_factor_ = 1.f;
   gfx::ColorSpace raster_color_space_;
@@ skipping 48 matching lines @@
 
   std::vector<std::pair<PaintImage, base::Callback<void(bool)>>>
       queued_image_decodes_;
 
   DISALLOW_COPY_AND_ASSIGN(LayerTreeHost);
 };
 
 }  // namespace cc
 
 #endif  // CC_TREES_LAYER_TREE_HOST_H_