Pass allow_delayed_resize in CompositorFrameMetadata

cc/trees/layer_tree_host_common.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_common.h"
 
 #include <algorithm>
 
 #include "base/debug/trace_event.h"
 #include "cc/base/math_util.h"
@@ skipping 1110 matching lines @@
 
 template <typename LayerType>
 struct SubtreeGlobals {
   LayerSorter* layer_sorter;
   int max_texture_size;
   float device_scale_factor;
   float page_scale_factor;
   const LayerType* page_scale_application_layer;
   bool can_adjust_raster_scales;
   bool can_render_to_separate_surface;
+  bool* has_fixed_to_bottom_edge_layer;
 };
 
 template<typename LayerType>
 struct DataForRecursion {
   // The accumulated sequence of transforms a layer will use to determine its
   // own draw transform.
   gfx::Transform parent_matrix;
 
   // The accumulated sequence of transforms a layer will use to determine its
   // own screen-space transform.
@@ skipping 278 matching lines @@
   // The replica draw transform to the root (screen space) origin is:
   //        M[replica2root] = M[surface2root] * Tr[replica->position()] *
   //            Tr[replica] * Tr[origin2anchor].inverse()
   //
 
   // It makes no sense to have a non-unit page_scale_factor without specifying
   // which layer roots the subtree the scale is applied to.
   DCHECK(globals.page_scale_application_layer ||
          (globals.page_scale_factor == 1.f));
 
+  if (globals.has_fixed_to_bottom_edge_layer) {
+    *globals.has_fixed_to_bottom_edge_layer |=
+        layer->position_constraint().is_fixed_to_bottom_edge();
+  }
+
   DataForRecursion<LayerType> data_for_children;
   typename LayerType::RenderSurfaceType*
       nearest_occlusion_immune_ancestor_surface =
           data_from_ancestor.nearest_occlusion_immune_ancestor_surface;
   data_for_children.in_subtree_of_page_scale_application_layer =
       data_from_ancestor.in_subtree_of_page_scale_application_layer;
   data_for_children.subtree_can_use_lcd_text =
       data_from_ancestor.subtree_can_use_lcd_text;
 
   // Layers with a copy request are always visible, as well as un-hiding their
@@ skipping 707 matching lines @@
 
   SubtreeGlobals<Layer> globals;
   globals.layer_sorter = NULL;
   globals.max_texture_size = inputs->max_texture_size;
   globals.device_scale_factor = inputs->device_scale_factor;
   globals.page_scale_factor = inputs->page_scale_factor;
   globals.page_scale_application_layer = inputs->page_scale_application_layer;
   globals.can_render_to_separate_surface =
       inputs->can_render_to_separate_surface;
   globals.can_adjust_raster_scales = inputs->can_adjust_raster_scales;
+  globals.has_fixed_to_bottom_edge_layer =
+      inputs->has_fixed_to_bottom_edge_layer;
+  if (globals.has_fixed_to_bottom_edge_layer)
+    *globals.has_fixed_to_bottom_edge_layer = false;
 
   DataForRecursion<Layer> data_for_recursion;
   data_for_recursion.parent_matrix = scaled_device_transform;
   data_for_recursion.full_hierarchy_matrix = identity_matrix;
   data_for_recursion.scroll_compensation_matrix = identity_matrix;
   data_for_recursion.fixed_container = inputs->root_layer;
   data_for_recursion.clip_rect_in_target_space = device_viewport_rect;
   data_for_recursion.clip_rect_of_target_surface_in_target_space =
       device_viewport_rect;
   data_for_recursion.ancestor_clips_subtree = true;
@@ skipping 38 matching lines @@
 
   SubtreeGlobals<LayerImpl> globals;
   globals.layer_sorter = &layer_sorter;
   globals.max_texture_size = inputs->max_texture_size;
   globals.device_scale_factor = inputs->device_scale_factor;
   globals.page_scale_factor = inputs->page_scale_factor;
   globals.page_scale_application_layer = inputs->page_scale_application_layer;
   globals.can_render_to_separate_surface =
       inputs->can_render_to_separate_surface;
   globals.can_adjust_raster_scales = inputs->can_adjust_raster_scales;
+  globals.has_fixed_to_bottom_edge_layer =
+      inputs->has_fixed_to_bottom_edge_layer;
+  if (globals.has_fixed_to_bottom_edge_layer)
+    *globals.has_fixed_to_bottom_edge_layer = false;
 
   DataForRecursion<LayerImpl> data_for_recursion;
   data_for_recursion.parent_matrix = scaled_device_transform;
   data_for_recursion.full_hierarchy_matrix = identity_matrix;
   data_for_recursion.scroll_compensation_matrix = identity_matrix;
   data_for_recursion.fixed_container = inputs->root_layer;
   data_for_recursion.clip_rect_in_target_space = device_viewport_rect;
   data_for_recursion.clip_rect_of_target_surface_in_target_space =
       device_viewport_rect;
   data_for_recursion.ancestor_clips_subtree = true;
@@ skipping 193 matching lines @@
   // At this point, we think the point does hit the touch event handler region
   // on the layer, but we need to walk up the parents to ensure that the layer
   // was not clipped in such a way that the hit point actually should not hit
   // the layer.
   if (PointIsClippedBySurfaceOrClipRect(screen_space_point, layer_impl))
     return false;
 
   return true;
 }
 }  // namespace cc