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

cc/trees/layer_tree_host.cc

 // 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.
 
 #include "cc/trees/layer_tree_host.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <algorithm>
@@ skipping 17 matching lines @@
 #include "base/threading/thread_task_runner_handle.h"
 #include "base/timer/elapsed_timer.h"
 #include "base/trace_event/trace_event.h"
 #include "base/trace_event/trace_event_argument.h"
 #include "cc/base/devtools_instrumentation.h"
 #include "cc/base/histograms.h"
 #include "cc/base/math_util.h"
 #include "cc/debug/rendering_stats_instrumentation.h"
 #include "cc/input/layer_selection_bound.h"
 #include "cc/input/page_scale_animation.h"
+#include "cc/input/scroll_boundary_behavior.h"
 #include "cc/layers/heads_up_display_layer.h"
 #include "cc/layers/heads_up_display_layer_impl.h"
 #include "cc/layers/layer.h"
 #include "cc/layers/painted_scrollbar_layer.h"
 #include "cc/resources/ui_resource_manager.h"
 #include "cc/tiles/frame_viewer_instrumentation.h"
 #include "cc/trees/draw_property_utils.h"
 #include "cc/trees/effect_node.h"
 #include "cc/trees/layer_tree_host_client.h"
 #include "cc/trees/layer_tree_host_common.h"
@@ skipping 901 matching lines @@
 }
 
 void LayerTreeHost::SetBottomControlsHeight(float height) {
   if (bottom_controls_height_ == height)
     return;
 
   bottom_controls_height_ = height;
   SetNeedsCommit();
 }
 
+void LayerTreeHost::SetScrollBoundaryBehavior(ScrollBoundaryBehavior behavior) {
+  if (scroll_boundary_behavior_ == behavior)
+    return;
+  scroll_boundary_behavior_ = behavior;
+  SetNeedsCommit();
+}
+
 void LayerTreeHost::SetPageScaleFactorAndLimits(float page_scale_factor,
                                                 float min_page_scale_factor,
                                                 float max_page_scale_factor) {
   if (page_scale_factor_ == page_scale_factor &&
       min_page_scale_factor_ == min_page_scale_factor &&
       max_page_scale_factor_ == max_page_scale_factor)
     return;
 
   page_scale_factor_ = page_scale_factor;
   min_page_scale_factor_ = min_page_scale_factor;
@@ skipping 206 matching lines @@
   // Setting property trees must happen before pushing the page scale.
   tree_impl->SetPropertyTrees(&property_trees_);
 
   tree_impl->PushPageScaleFromMainThread(
       page_scale_factor_, min_page_scale_factor_, max_page_scale_factor_);
 
   tree_impl->set_browser_controls_shrink_blink_size(
       browser_controls_shrink_blink_size_);
   tree_impl->set_top_controls_height(top_controls_height_);
   tree_impl->set_bottom_controls_height(bottom_controls_height_);
+  tree_impl->set_scroll_boundary_behavior(scroll_boundary_behavior_);
   tree_impl->PushBrowserControlsFromMainThread(top_controls_shown_ratio_);
   tree_impl->elastic_overscroll()->PushFromMainThread(elastic_overscroll_);
   if (tree_impl->IsActiveTree())
     tree_impl->elastic_overscroll()->PushPendingToActive();
 
   tree_impl->set_painted_device_scale_factor(painted_device_scale_factor_);
 
   tree_impl->SetRasterColorSpace(raster_color_space_);
 
   tree_impl->set_content_source_id(content_source_id_);
@@ skipping 261 matching lines @@
 void LayerTreeHost::SetNeedsDisplayOnAllLayers() {
   for (auto* layer : *this)
     layer->SetNeedsDisplay();
 }
 
 void LayerTreeHost::SetHasCopyRequest(bool has_copy_request) {
   has_copy_request_ = has_copy_request;
 }
 
 }  // namespace cc