Remove parts of //cc we aren't using

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 "cc/base/math_util.h"
-#include "cc/layers/layer_impl.h"
-#include "cc/layers/layer_iterator.h"
-#include "cc/layers/layer_utils.h"
-#include "cc/layers/render_surface_impl.h"
-#include "cc/trees/damage_tracker.h"
-#include "cc/trees/layer_tree_host.h"
-#include "cc/trees/layer_tree_host_common.h"
-#include "ui/gfx/geometry/rect_conversions.h"
-
-namespace cc {
-
-// static
-scoped_ptr<DebugRectHistory> DebugRectHistory::Create() {
-  return make_scoped_ptr(new DebugRectHistory());
-}
-
-DebugRectHistory::DebugRectHistory() {}
-
-DebugRectHistory::~DebugRectHistory() {}
-
-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);
-
-  if (debug_state.show_wheel_event_handler_rects)
-    SaveWheelEventHandlerRects(root_layer);
-
-  if (debug_state.show_scroll_event_handler_rects)
-    SaveScrollEventHandlerRects(root_layer);
-
-  if (debug_state.show_non_fast_scrollable_rects)
-    SaveNonFastScrollableRects(root_layer);
-
-  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);
-
-  if (debug_state.show_screen_space_rects)
-    SaveScreenSpaceRects(render_surface_layer_list);
-
-  if (debug_state.show_layer_animation_bounds_rects)
-    SaveLayerAnimationBoundsRects(render_surface_layer_list);
-}
-
-void DebugRectHistory::SavePaintRects(LayerImpl* layer) {
-  // We would like to visualize where any layer's paint rect (update rect) has
-  // changed, regardless of whether this layer is skipped for actual drawing or
-  // not. Therefore we traverse recursively over all layers, not just the render
-  // surface list.
-
-  Region invalidation_region = layer->GetInvalidationRegion();
-  if (!invalidation_region.IsEmpty() && layer->DrawsContent()) {
-    float width_scale = layer->content_bounds().width() /
-                        static_cast<float>(layer->bounds().width());
-    float height_scale = layer->content_bounds().height() /
-                         static_cast<float>(layer->bounds().height());
-
-    for (Region::Iterator it(invalidation_region); it.has_rect(); it.next()) {
-      gfx::Rect update_content_rect =
-          gfx::ScaleToEnclosingRect(it.rect(), width_scale, height_scale);
-      debug_rects_.push_back(
-          DebugRect(PAINT_RECT_TYPE,
-                    MathUtil::MapEnclosingClippedRect(
-                        layer->screen_space_transform(), update_content_rect)));
-    }
-  }
-
-  for (unsigned i = 0; i < layer->children().size(); ++i)
-    SavePaintRects(layer->children()[i]);
-}
-
-void DebugRectHistory::SavePropertyChangedRects(
-    const LayerImplList& render_surface_layer_list,
-    LayerImpl* hud_layer) {
-  for (int surface_index = render_surface_layer_list.size() - 1;
-       surface_index >= 0;
-       --surface_index) {
-    LayerImpl* render_surface_layer = render_surface_layer_list[surface_index];
-    RenderSurfaceImpl* render_surface = render_surface_layer->render_surface();
-    DCHECK(render_surface);
-
-    const LayerImplList& layer_list = render_surface->layer_list();
-    for (unsigned layer_index = 0;
-         layer_index < layer_list.size();
-         ++layer_index) {
-      LayerImpl* layer = layer_list[layer_index];
-
-      if (LayerTreeHostCommon::RenderSurfaceContributesToTarget<LayerImpl>(
-              layer, render_surface_layer->id()))
-        continue;
-
-      if (layer == hud_layer)
-        continue;
-
-      if (!layer->LayerPropertyChanged())
-        continue;
-
-      debug_rects_.push_back(
-          DebugRect(PROPERTY_CHANGED_RECT_TYPE,
-                    MathUtil::MapEnclosingClippedRect(
-                        layer->screen_space_transform(),
-                        gfx::Rect(layer->content_bounds()))));
-    }
-  }
-}
-
-void DebugRectHistory::SaveSurfaceDamageRects(
-    const LayerImplList& render_surface_layer_list) {
-  for (int surface_index = render_surface_layer_list.size() - 1;
-       surface_index >= 0;
-       --surface_index) {
-    LayerImpl* render_surface_layer = render_surface_layer_list[surface_index];
-    RenderSurfaceImpl* render_surface = render_surface_layer->render_surface();
-    DCHECK(render_surface);
-
-    debug_rects_.push_back(DebugRect(
-        SURFACE_DAMAGE_RECT_TYPE,
-        MathUtil::MapEnclosingClippedRect(
-            render_surface->screen_space_transform(),
-            render_surface->damage_tracker()->current_damage_rect())));
-  }
-}
-
-void DebugRectHistory::SaveScreenSpaceRects(
-    const LayerImplList& render_surface_layer_list) {
-  for (int surface_index = render_surface_layer_list.size() - 1;
-       surface_index >= 0;
-       --surface_index) {
-    LayerImpl* render_surface_layer = render_surface_layer_list[surface_index];
-    RenderSurfaceImpl* render_surface = render_surface_layer->render_surface();
-    DCHECK(render_surface);
-
-    debug_rects_.push_back(
-        DebugRect(SCREEN_SPACE_RECT_TYPE,
-                  MathUtil::MapEnclosingClippedRect(
-                      render_surface->screen_space_transform(),
-                      render_surface->content_rect())));
-
-    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::SaveTouchEventHandlerRectsCallback(LayerImpl* layer) {
-  for (Region::Iterator iter(layer->touch_event_handler_region());
-       iter.has_rect();
-       iter.next()) {
-    gfx::Rect touch_rect = gfx::ScaleToEnclosingRect(
-        iter.rect(), layer->contents_scale_x(), layer->contents_scale_y());
-    debug_rects_.push_back(
-        DebugRect(TOUCH_EVENT_HANDLER_RECT_TYPE,
-                  MathUtil::MapEnclosingClippedRect(
-                      layer->screen_space_transform(), touch_rect)));
-  }
-}
-
-void DebugRectHistory::SaveWheelEventHandlerRects(LayerImpl* layer) {
-  LayerTreeHostCommon::CallFunctionForSubtree(layer, [this](LayerImpl* layer) {
-    SaveWheelEventHandlerRectsCallback(layer);
-  });
-}
-
-void DebugRectHistory::SaveWheelEventHandlerRectsCallback(LayerImpl* layer) {
-  if (!layer->have_wheel_event_handlers())
-    return;
-
-  gfx::Rect wheel_rect =
-      gfx::ScaleToEnclosingRect(gfx::Rect(layer->content_bounds()),
-                                layer->contents_scale_x(),
-                                layer->contents_scale_y());
-  debug_rects_.push_back(
-      DebugRect(WHEEL_EVENT_HANDLER_RECT_TYPE,
-                MathUtil::MapEnclosingClippedRect(
-                    layer->screen_space_transform(), wheel_rect)));
-}
-
-void DebugRectHistory::SaveScrollEventHandlerRects(LayerImpl* layer) {
-  LayerTreeHostCommon::CallFunctionForSubtree(layer, [this](LayerImpl* layer) {
-    SaveScrollEventHandlerRectsCallback(layer);
-  });
-}
-
-void DebugRectHistory::SaveScrollEventHandlerRectsCallback(LayerImpl* layer) {
-  if (!layer->have_scroll_event_handlers())
-    return;
-
-  gfx::Rect scroll_rect =
-      gfx::ScaleToEnclosingRect(gfx::Rect(layer->content_bounds()),
-                                layer->contents_scale_x(),
-                                layer->contents_scale_y());
-  debug_rects_.push_back(
-      DebugRect(SCROLL_EVENT_HANDLER_RECT_TYPE,
-                MathUtil::MapEnclosingClippedRect(
-                    layer->screen_space_transform(), scroll_rect)));
-}
-
-void DebugRectHistory::SaveNonFastScrollableRects(LayerImpl* layer) {
-  LayerTreeHostCommon::CallFunctionForSubtree(layer, [this](LayerImpl* layer) {
-    SaveNonFastScrollableRectsCallback(layer);
-  });
-}
-
-void DebugRectHistory::SaveNonFastScrollableRectsCallback(LayerImpl* layer) {
-  for (Region::Iterator iter(layer->non_fast_scrollable_region());
-       iter.has_rect();
-       iter.next()) {
-    gfx::Rect scroll_rect = gfx::ScaleToEnclosingRect(
-        iter.rect(), layer->contents_scale_x(), layer->contents_scale_y());
-    debug_rects_.push_back(
-        DebugRect(NON_FAST_SCROLLABLE_RECT_TYPE,
-                  MathUtil::MapEnclosingClippedRect(
-                      layer->screen_space_transform(), scroll_rect)));
-  }
-}
-
-void DebugRectHistory::SaveLayerAnimationBoundsRects(
-    const LayerImplList& render_surface_layer_list) {
-  typedef LayerIterator<LayerImpl> LayerIteratorType;
-  LayerIteratorType end = LayerIteratorType::End(&render_surface_layer_list);
-  for (LayerIteratorType it =
-           LayerIteratorType::Begin(&render_surface_layer_list);
-       it != end; ++it) {
-    if (!it.represents_itself())
-      continue;
-
-    // TODO(avallee): Figure out if we should show something for a layer who's
-    // animating bounds but that we can't compute them.
-    gfx::BoxF inflated_bounds;
-    if (!LayerUtils::GetAnimationBounds(**it, &inflated_bounds))
-      continue;
-
-    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