cc : Make CallFunctionForSubtree on impl use layer iterator

cc/debug/debug_rect_history.cc

 // Copyright 2012 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/debug/debug_rect_history.h"
 
 #include <stddef.h>
 
 #include "cc/base/math_util.h"
 #include "cc/layers/layer_impl.h"
@@ skipping 21 matching lines @@
 void DebugRectHistory::SaveDebugRectsForCurrentFrame(
     LayerImpl* root_layer,
     LayerImpl* hud_layer,
     const LayerImplList& render_surface_layer_list,
     const LayerTreeDebugState& debug_state) {
   // For now, clear all rects from previous frames. In the future we may want to
   // store all debug rects for a history of many frames.
   debug_rects_.clear();
 
   if (debug_state.show_touch_event_handler_rects)
-    SaveTouchEventHandlerRects(root_layer);
+    SaveTouchEventHandlerRects(root_layer->layer_tree_impl());
 
   if (debug_state.show_wheel_event_handler_rects)
     SaveWheelEventHandlerRects(root_layer);
 
   if (debug_state.show_scroll_event_handler_rects)
-    SaveScrollEventHandlerRects(root_layer);
+    SaveScrollEventHandlerRects(root_layer->layer_tree_impl());
 
   if (debug_state.show_non_fast_scrollable_rects)
-    SaveNonFastScrollableRects(root_layer);
+    SaveNonFastScrollableRects(root_layer->layer_tree_impl());
 
   if (debug_state.show_paint_rects)
     SavePaintRects(root_layer);
 
   if (debug_state.show_property_changed_rects)
     SavePropertyChangedRects(render_surface_layer_list, hud_layer);
 
   if (debug_state.show_surface_damage_rects)
     SaveSurfaceDamageRects(render_surface_layer_list);
 
@@ skipping 88 matching lines @@
     if (render_surface_layer->replica_layer()) {
       debug_rects_.push_back(
           DebugRect(REPLICA_SCREEN_SPACE_RECT_TYPE,
                     MathUtil::MapEnclosingClippedRect(
                         render_surface->replica_screen_space_transform(),
                         render_surface->content_rect())));
     }
   }
 }
 
-void DebugRectHistory::SaveTouchEventHandlerRects(LayerImpl* layer) {
-  LayerTreeHostCommon::CallFunctionForSubtree(layer, [this](LayerImpl* layer) {
-    SaveTouchEventHandlerRectsCallback(layer);
-  });
+void DebugRectHistory::SaveTouchEventHandlerRects(LayerTreeImpl* tree_impl) {
+  LayerTreeHostCommon::CallFunctionForEveryLayer(
+      tree_impl,
+      [this](LayerImpl* layer) { SaveTouchEventHandlerRectsCallback(layer); });
 }
 
 void DebugRectHistory::SaveTouchEventHandlerRectsCallback(LayerImpl* layer) {
   for (Region::Iterator iter(layer->touch_event_handler_region());
        iter.has_rect();
        iter.next()) {
     debug_rects_.push_back(
         DebugRect(TOUCH_EVENT_HANDLER_RECT_TYPE,
                   MathUtil::MapEnclosingClippedRect(
                       layer->ScreenSpaceTransform(), iter.rect())));
@@ skipping 15 matching lines @@
   LayerImpl* inner_viewport =
       root_layer->layer_tree_impl()->InnerViewportScrollLayer();
   if (!inner_viewport)
     return;
   debug_rects_.push_back(DebugRect(
       WHEEL_EVENT_HANDLER_RECT_TYPE,
       MathUtil::MapEnclosingClippedRect(inner_viewport->ScreenSpaceTransform(),
                                         gfx::Rect(inner_viewport->bounds()))));
 }
 
-void DebugRectHistory::SaveScrollEventHandlerRects(LayerImpl* layer) {
-  LayerTreeHostCommon::CallFunctionForSubtree(layer, [this](LayerImpl* layer) {
-    SaveScrollEventHandlerRectsCallback(layer);
-  });
+void DebugRectHistory::SaveScrollEventHandlerRects(LayerTreeImpl* tree_impl) {
+  LayerTreeHostCommon::CallFunctionForEveryLayer(
+      tree_impl,
+      [this](LayerImpl* layer) { SaveScrollEventHandlerRectsCallback(layer); });
 }
 
 void DebugRectHistory::SaveScrollEventHandlerRectsCallback(LayerImpl* layer) {
   if (!layer->layer_tree_impl()->have_scroll_event_handlers())
     return;
 
   debug_rects_.push_back(
       DebugRect(SCROLL_EVENT_HANDLER_RECT_TYPE,
                 MathUtil::MapEnclosingClippedRect(layer->ScreenSpaceTransform(),
                                                   gfx::Rect(layer->bounds()))));
 }
 
-void DebugRectHistory::SaveNonFastScrollableRects(LayerImpl* layer) {
-  LayerTreeHostCommon::CallFunctionForSubtree(layer, [this](LayerImpl* layer) {
-    SaveNonFastScrollableRectsCallback(layer);
-  });
+void DebugRectHistory::SaveNonFastScrollableRects(LayerTreeImpl* tree_impl) {
+  LayerTreeHostCommon::CallFunctionForEveryLayer(
+      tree_impl,
+      [this](LayerImpl* layer) { SaveNonFastScrollableRectsCallback(layer); });
 }
 
 void DebugRectHistory::SaveNonFastScrollableRectsCallback(LayerImpl* layer) {
   for (Region::Iterator iter(layer->non_fast_scrollable_region());
        iter.has_rect();
        iter.next()) {
     debug_rects_.push_back(
         DebugRect(NON_FAST_SCROLLABLE_RECT_TYPE,
                   MathUtil::MapEnclosingClippedRect(
                       layer->ScreenSpaceTransform(), iter.rect())));
@@ skipping 17 matching lines @@
     debug_rects_.push_back(
         DebugRect(ANIMATION_BOUNDS_RECT_TYPE,
                   gfx::ToEnclosingRect(gfx::RectF(inflated_bounds.x(),
                                                   inflated_bounds.y(),
                                                   inflated_bounds.width(),
                                                   inflated_bounds.height()))));
   }
 }
 
 }  // namespace cc