Communicate whether passive event listeners exist to cc.

cc/layers/layer_impl.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_LAYERS_LAYER_IMPL_H_
 #define CC_LAYERS_LAYER_IMPL_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <map>
 #include <set>
 #include <string>
 #include <vector>
 
 #include "base/logging.h"
 #include "base/macros.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/values.h"
 #include "cc/animation/animation_delegate.h"
 #include "cc/animation/layer_animation_controller.h"
 #include "cc/animation/layer_animation_value_observer.h"
 #include "cc/animation/layer_animation_value_provider.h"
 #include "cc/base/cc_export.h"
 #include "cc/base/region.h"
 #include "cc/base/synced_property.h"
 #include "cc/debug/frame_timing_request.h"
 #include "cc/input/input_handler.h"
 #include "cc/layers/draw_properties.h"
+#include "cc/layers/event_listener_properties.h"
 #include "cc/layers/layer_lists.h"
 #include "cc/layers/layer_position_constraint.h"
 #include "cc/layers/performance_properties.h"
 #include "cc/layers/render_surface_impl.h"
 #include "cc/layers/scroll_blocks_on.h"
 #include "cc/output/filter_operations.h"
 #include "cc/quads/shared_quad_state.h"
 #include "cc/resources/resource_provider.h"
 #include "cc/tiles/tile_priority.h"
 #include "skia/ext/refptr.h"
@@ skipping 449 matching lines @@
 
   void ApplySentScrollDeltasFromAbortedCommit();
 
   void SetShouldScrollOnMainThread(bool should_scroll_on_main_thread) {
     should_scroll_on_main_thread_ = should_scroll_on_main_thread;
   }
   bool should_scroll_on_main_thread() const {
     return should_scroll_on_main_thread_;
   }
 
-  void SetHaveWheelEventHandlers(bool have_wheel_event_handlers) {
-    have_wheel_event_handlers_ = have_wheel_event_handlers;
+  void SetWheelEventProperties(EventListenerProperties wheel_event_properties) {
+    wheel_event_properties_ = wheel_event_properties;
   }
-  bool have_wheel_event_handlers() const { return have_wheel_event_handlers_; }
+  EventListenerProperties wheel_event_properties() const {
+    return wheel_event_properties_;
+  }
+
+  void SetTouchEventProperties(EventListenerProperties touch_event_properties) {
+    touch_event_properties_ = touch_event_properties;
+  }
+  EventListenerProperties touch_event_properties() const {
+    return touch_event_properties_;
+  }
 
   void SetHaveScrollEventHandlers(bool have_scroll_event_handlers) {
     have_scroll_event_handlers_ = have_scroll_event_handlers;
   }
   bool have_scroll_event_handlers() const {
     return have_scroll_event_handlers_;
   }
 
   void SetNonFastScrollableRegion(const Region& region) {
     non_fast_scrollable_region_ = region;
@@ skipping 252 matching lines @@
   gfx::Vector2dF bounds_delta_;
 
   // Properties synchronized from the associated Layer.
   gfx::Point3F transform_origin_;
   gfx::Size bounds_;
   int scroll_clip_layer_id_;
 
   gfx::Vector2dF offset_to_transform_parent_;
 
   bool should_scroll_on_main_thread_ : 1;
-  bool have_wheel_event_handlers_ : 1;
   bool have_scroll_event_handlers_ : 1;
 
   static_assert(SCROLL_BLOCKS_ON_MAX < (1 << 3), "ScrollBlocksOn too big");
   ScrollBlocksOn scroll_blocks_on_ : 3;
 
   bool user_scrollable_horizontal_ : 1;
   bool user_scrollable_vertical_ : 1;
   bool stacking_order_changed_ : 1;
   // Whether the "back" of this layer should draw.
   bool double_sided_ : 1;
@@ skipping 15 matching lines @@
 
   // Set for the layer that other layers are fixed to.
   bool is_container_for_fixed_position_layers_ : 1;
 
   bool is_affected_by_page_scale_ : 1;
 
   // This is true if and only if the layer was ever ready since it last animated
   // (all content was complete).
   bool was_ever_ready_since_last_transform_animation_ : 1;
 
+  EventListenerProperties touch_event_properties_;
+  EventListenerProperties wheel_event_properties_;
+
   Region non_fast_scrollable_region_;
   Region touch_event_handler_region_;
   SkColor background_color_;
 
   float opacity_;
   SkXfermode::Mode blend_mode_;
   // draw_blend_mode may be different than blend_mode_,
   // when a RenderSurface re-parents the layer's blend_mode.
   SkXfermode::Mode draw_blend_mode_;
   gfx::PointF position_;
@@ skipping 72 matching lines @@
   bool layer_or_descendant_has_input_handler_;
   bool sorted_for_recursion_;
   bool is_hidden_from_property_trees_;
 
   DISALLOW_COPY_AND_ASSIGN(LayerImpl);
 };
 
 }  // namespace cc
 
 #endif  // CC_LAYERS_LAYER_IMPL_H_