Remove parts of //cc we aren't using

cc/blink/web_layer_impl.cc

-// Copyright 2014 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/blink/web_layer_impl.h"
-
-#include <utility>
-#include <vector>
-
-#include "base/bind.h"
-#include "base/lazy_instance.h"
-#include "base/strings/string_util.h"
-#include "base/threading/thread_checker.h"
-#include "base/trace_event/trace_event_impl.h"
-#include "cc/animation/animation.h"
-#include "cc/base/region.h"
-#include "cc/base/switches.h"
-#include "cc/blink/web_animation_impl.h"
-#include "cc/blink/web_blend_mode.h"
-#include "cc/blink/web_filter_operations_impl.h"
-#include "cc/blink/web_to_cc_animation_delegate_adapter.h"
-#include "cc/layers/layer.h"
-#include "cc/layers/layer_position_constraint.h"
-#include "cc/trees/layer_tree_host.h"
-#include "third_party/WebKit/public/platform/WebFloatPoint.h"
-#include "third_party/WebKit/public/platform/WebFloatRect.h"
-#include "third_party/WebKit/public/platform/WebGraphicsLayerDebugInfo.h"
-#include "third_party/WebKit/public/platform/WebLayerClient.h"
-#include "third_party/WebKit/public/platform/WebLayerPositionConstraint.h"
-#include "third_party/WebKit/public/platform/WebLayerScrollClient.h"
-#include "third_party/WebKit/public/platform/WebSize.h"
-#include "third_party/skia/include/utils/SkMatrix44.h"
-#include "ui/gfx/geometry/rect_conversions.h"
-#include "ui/gfx/geometry/vector2d_conversions.h"
-
-using cc::Animation;
-using cc::Layer;
-using blink::WebLayer;
-using blink::WebFloatPoint;
-using blink::WebVector;
-using blink::WebRect;
-using blink::WebSize;
-using blink::WebColor;
-using blink::WebFilterOperations;
-
-namespace cc_blink {
-namespace {
-
-bool g_impl_side_painting_enabled = false;
-
-}  // namespace
-
-WebLayerImpl::WebLayerImpl() : layer_(Layer::Create()) {
-  web_layer_client_ = nullptr;
-  layer_->SetLayerClient(this);
-}
-
-WebLayerImpl::WebLayerImpl(scoped_refptr<Layer> layer) : layer_(layer) {
-  web_layer_client_ = nullptr;
-  layer_->SetLayerClient(this);
-}
-
-WebLayerImpl::~WebLayerImpl() {
-  layer_->ClearRenderSurface();
-  layer_->set_layer_animation_delegate(nullptr);
-  web_layer_client_ = nullptr;
-}
-
-// static
-bool WebLayerImpl::UsingPictureLayer() {
-  return g_impl_side_painting_enabled;
-}
-
-// static
-void WebLayerImpl::SetImplSidePaintingEnabled(bool enabled) {
-  g_impl_side_painting_enabled = enabled;
-}
-
-int WebLayerImpl::id() const {
-  return layer_->id();
-}
-
-void WebLayerImpl::invalidateRect(const blink::WebRect& rect) {
-  layer_->SetNeedsDisplayRect(rect);
-}
-
-void WebLayerImpl::invalidate() {
-  layer_->SetNeedsDisplay();
-}
-
-void WebLayerImpl::addChild(WebLayer* child) {
-  layer_->AddChild(static_cast<WebLayerImpl*>(child)->layer());
-}
-
-void WebLayerImpl::insertChild(WebLayer* child, size_t index) {
-  layer_->InsertChild(static_cast<WebLayerImpl*>(child)->layer(), index);
-}
-
-void WebLayerImpl::replaceChild(WebLayer* reference, WebLayer* new_layer) {
-  layer_->ReplaceChild(static_cast<WebLayerImpl*>(reference)->layer(),
-                       static_cast<WebLayerImpl*>(new_layer)->layer());
-}
-
-void WebLayerImpl::removeFromParent() {
-  layer_->RemoveFromParent();
-}
-
-void WebLayerImpl::removeAllChildren() {
-  layer_->RemoveAllChildren();
-}
-
-void WebLayerImpl::setBounds(const WebSize& size) {
-  layer_->SetBounds(size);
-}
-
-WebSize WebLayerImpl::bounds() const {
-  return layer_->bounds();
-}
-
-void WebLayerImpl::setMasksToBounds(bool masks_to_bounds) {
-  layer_->SetMasksToBounds(masks_to_bounds);
-}
-
-bool WebLayerImpl::masksToBounds() const {
-  return layer_->masks_to_bounds();
-}
-
-void WebLayerImpl::setMaskLayer(WebLayer* maskLayer) {
-  layer_->SetMaskLayer(
-      maskLayer ? static_cast<WebLayerImpl*>(maskLayer)->layer() : 0);
-}
-
-void WebLayerImpl::setReplicaLayer(WebLayer* replica_layer) {
-  layer_->SetReplicaLayer(
-      replica_layer ? static_cast<WebLayerImpl*>(replica_layer)->layer() : 0);
-}
-
-void WebLayerImpl::setOpacity(float opacity) {
-  layer_->SetOpacity(opacity);
-}
-
-float WebLayerImpl::opacity() const {
-  return layer_->opacity();
-}
-
-void WebLayerImpl::setBlendMode(blink::WebBlendMode blend_mode) {
-  layer_->SetBlendMode(BlendModeToSkia(blend_mode));
-}
-
-blink::WebBlendMode WebLayerImpl::blendMode() const {
-  return BlendModeFromSkia(layer_->blend_mode());
-}
-
-void WebLayerImpl::setIsRootForIsolatedGroup(bool isolate) {
-  layer_->SetIsRootForIsolatedGroup(isolate);
-}
-
-bool WebLayerImpl::isRootForIsolatedGroup() {
-  return layer_->is_root_for_isolated_group();
-}
-
-void WebLayerImpl::setOpaque(bool opaque) {
-  layer_->SetContentsOpaque(opaque);
-}
-
-bool WebLayerImpl::opaque() const {
-  return layer_->contents_opaque();
-}
-
-void WebLayerImpl::setPosition(const WebFloatPoint& position) {
-  layer_->SetPosition(position);
-}
-
-WebFloatPoint WebLayerImpl::position() const {
-  return layer_->position();
-}
-
-void WebLayerImpl::setTransform(const SkMatrix44& matrix) {
-  gfx::Transform transform;
-  transform.matrix() = matrix;
-  layer_->SetTransform(transform);
-}
-
-void WebLayerImpl::setTransformOrigin(const blink::WebFloatPoint3D& point) {
-  gfx::Point3F gfx_point = point;
-  layer_->SetTransformOrigin(gfx_point);
-}
-
-blink::WebFloatPoint3D WebLayerImpl::transformOrigin() const {
-  return layer_->transform_origin();
-}
-
-SkMatrix44 WebLayerImpl::transform() const {
-  return layer_->transform().matrix();
-}
-
-void WebLayerImpl::setDrawsContent(bool draws_content) {
-  layer_->SetIsDrawable(draws_content);
-}
-
-bool WebLayerImpl::drawsContent() const {
-  return layer_->DrawsContent();
-}
-
-void WebLayerImpl::setShouldFlattenTransform(bool flatten) {
-  layer_->SetShouldFlattenTransform(flatten);
-}
-
-void WebLayerImpl::setRenderingContext(int context) {
-  layer_->Set3dSortingContextId(context);
-}
-
-void WebLayerImpl::setUseParentBackfaceVisibility(
-    bool use_parent_backface_visibility) {
-  layer_->set_use_parent_backface_visibility(use_parent_backface_visibility);
-}
-
-void WebLayerImpl::setBackgroundColor(WebColor color) {
-  layer_->SetBackgroundColor(color);
-}
-
-WebColor WebLayerImpl::backgroundColor() const {
-  return layer_->background_color();
-}
-
-void WebLayerImpl::setFilters(const WebFilterOperations& filters) {
-  const WebFilterOperationsImpl& filters_impl =
-      static_cast<const WebFilterOperationsImpl&>(filters);
-  layer_->SetFilters(filters_impl.AsFilterOperations());
-}
-
-void WebLayerImpl::setBackgroundFilters(const WebFilterOperations& filters) {
-  const WebFilterOperationsImpl& filters_impl =
-      static_cast<const WebFilterOperationsImpl&>(filters);
-  layer_->SetBackgroundFilters(filters_impl.AsFilterOperations());
-}
-
-void WebLayerImpl::setAnimationDelegate(
-    blink::WebCompositorAnimationDelegate* delegate) {
-  animation_delegate_adapter_.reset(
-      new WebToCCAnimationDelegateAdapter(delegate));
-  layer_->set_layer_animation_delegate(animation_delegate_adapter_.get());
-}
-
-bool WebLayerImpl::addAnimation(blink::WebCompositorAnimation* animation) {
-  bool result = layer_->AddAnimation(
-      static_cast<WebCompositorAnimationImpl*>(animation)->PassAnimation());
-  delete animation;
-  return result;
-}
-
-void WebLayerImpl::removeAnimation(int animation_id) {
-  layer_->RemoveAnimation(animation_id);
-}
-
-void WebLayerImpl::removeAnimation(
-    int animation_id,
-    blink::WebCompositorAnimation::TargetProperty target_property) {
-  layer_->RemoveAnimation(
-      animation_id, static_cast<Animation::TargetProperty>(target_property));
-}
-
-void WebLayerImpl::pauseAnimation(int animation_id, double time_offset) {
-  layer_->PauseAnimation(animation_id, time_offset);
-}
-
-bool WebLayerImpl::hasActiveAnimation() {
-  return layer_->HasActiveAnimation();
-}
-
-void WebLayerImpl::setForceRenderSurface(bool force_render_surface) {
-  layer_->SetForceRenderSurface(force_render_surface);
-}
-
-void WebLayerImpl::setScrollPositionDouble(blink::WebDoublePoint position) {
-  layer_->SetScrollOffset(gfx::ScrollOffset(position.x, position.y));
-}
-
-void WebLayerImpl::setScrollCompensationAdjustment(
-    blink::WebDoublePoint position) {
-  layer_->SetScrollCompensationAdjustment(
-      gfx::Vector2dF(position.x, position.y));
-}
-
-blink::WebDoublePoint WebLayerImpl::scrollPositionDouble() const {
-  return blink::WebDoublePoint(layer_->scroll_offset().x(),
-                               layer_->scroll_offset().y());
-}
-
-void WebLayerImpl::setScrollClipLayer(WebLayer* clip_layer) {
-  if (!clip_layer) {
-    layer_->SetScrollClipLayerId(Layer::INVALID_ID);
-    return;
-  }
-  layer_->SetScrollClipLayerId(clip_layer->id());
-}
-
-bool WebLayerImpl::scrollable() const {
-  return layer_->scrollable();
-}
-
-void WebLayerImpl::setUserScrollable(bool horizontal, bool vertical) {
-  layer_->SetUserScrollable(horizontal, vertical);
-}
-
-bool WebLayerImpl::userScrollableHorizontal() const {
-  return layer_->user_scrollable_horizontal();
-}
-
-bool WebLayerImpl::userScrollableVertical() const {
-  return layer_->user_scrollable_vertical();
-}
-
-void WebLayerImpl::setHaveWheelEventHandlers(bool have_wheel_event_handlers) {
-  layer_->SetHaveWheelEventHandlers(have_wheel_event_handlers);
-}
-
-bool WebLayerImpl::haveWheelEventHandlers() const {
-  return layer_->have_wheel_event_handlers();
-}
-
-void WebLayerImpl::setHaveScrollEventHandlers(bool have_scroll_event_handlers) {
-  layer_->SetHaveScrollEventHandlers(have_scroll_event_handlers);
-}
-
-bool WebLayerImpl::haveScrollEventHandlers() const {
-  return layer_->have_scroll_event_handlers();
-}
-
-void WebLayerImpl::setShouldScrollOnMainThread(
-    bool should_scroll_on_main_thread) {
-  layer_->SetShouldScrollOnMainThread(should_scroll_on_main_thread);
-}
-
-bool WebLayerImpl::shouldScrollOnMainThread() const {
-  return layer_->should_scroll_on_main_thread();
-}
-
-void WebLayerImpl::setNonFastScrollableRegion(const WebVector<WebRect>& rects) {
-  cc::Region region;
-  for (size_t i = 0; i < rects.size(); ++i)
-    region.Union(rects[i]);
-  layer_->SetNonFastScrollableRegion(region);
-}
-
-WebVector<WebRect> WebLayerImpl::nonFastScrollableRegion() const {
-  size_t num_rects = 0;
-  for (cc::Region::Iterator region_rects(layer_->non_fast_scrollable_region());
-       region_rects.has_rect();
-       region_rects.next())
-    ++num_rects;
-
-  WebVector<WebRect> result(num_rects);
-  size_t i = 0;
-  for (cc::Region::Iterator region_rects(layer_->non_fast_scrollable_region());
-       region_rects.has_rect();
-       region_rects.next()) {
-    result[i] = region_rects.rect();
-    ++i;
-  }
-  return result;
-}
-
-void WebLayerImpl::setFrameTimingRequests(
-    const WebVector<std::pair<int64_t, WebRect>>& requests) {
-  std::vector<cc::FrameTimingRequest> frame_timing_requests(requests.size());
-  for (size_t i = 0; i < requests.size(); ++i) {
-    frame_timing_requests.push_back(cc::FrameTimingRequest(
-        requests[i].first, gfx::Rect(requests[i].second)));
-  }
-  layer_->SetFrameTimingRequests(frame_timing_requests);
-}
-
-void WebLayerImpl::setTouchEventHandlerRegion(const WebVector<WebRect>& rects) {
-  cc::Region region;
-  for (size_t i = 0; i < rects.size(); ++i)
-    region.Union(rects[i]);
-  layer_->SetTouchEventHandlerRegion(region);
-}
-
-WebVector<WebRect> WebLayerImpl::touchEventHandlerRegion() const {
-  size_t num_rects = 0;
-  for (cc::Region::Iterator region_rects(layer_->touch_event_handler_region());
-       region_rects.has_rect();
-       region_rects.next())
-    ++num_rects;
-
-  WebVector<WebRect> result(num_rects);
-  size_t i = 0;
-  for (cc::Region::Iterator region_rects(layer_->touch_event_handler_region());
-       region_rects.has_rect();
-       region_rects.next()) {
-    result[i] = region_rects.rect();
-    ++i;
-  }
-  return result;
-}
-
-static_assert(static_cast<ScrollBlocksOn>(blink::WebScrollBlocksOnNone) ==
-                  SCROLL_BLOCKS_ON_NONE,
-              "ScrollBlocksOn and WebScrollBlocksOn enums must match");
-static_assert(static_cast<ScrollBlocksOn>(blink::WebScrollBlocksOnStartTouch) ==
-                  SCROLL_BLOCKS_ON_START_TOUCH,
-              "ScrollBlocksOn and WebScrollBlocksOn enums must match");
-static_assert(static_cast<ScrollBlocksOn>(blink::WebScrollBlocksOnWheelEvent) ==
-                  SCROLL_BLOCKS_ON_WHEEL_EVENT,
-              "ScrollBlocksOn and WebScrollBlocksOn enums must match");
-static_assert(
-    static_cast<ScrollBlocksOn>(blink::WebScrollBlocksOnScrollEvent) ==
-        SCROLL_BLOCKS_ON_SCROLL_EVENT,
-    "ScrollBlocksOn and WebScrollBlocksOn enums must match");
-
-void WebLayerImpl::setScrollBlocksOn(blink::WebScrollBlocksOn blocks) {
-  layer_->SetScrollBlocksOn(static_cast<ScrollBlocksOn>(blocks));
-}
-
-blink::WebScrollBlocksOn WebLayerImpl::scrollBlocksOn() const {
-  return static_cast<blink::WebScrollBlocksOn>(layer_->scroll_blocks_on());
-}
-
-void WebLayerImpl::setIsContainerForFixedPositionLayers(bool enable) {
-  layer_->SetIsContainerForFixedPositionLayers(enable);
-}
-
-bool WebLayerImpl::isContainerForFixedPositionLayers() const {
-  return layer_->IsContainerForFixedPositionLayers();
-}
-
-static blink::WebLayerPositionConstraint ToWebLayerPositionConstraint(
-    const cc::LayerPositionConstraint& constraint) {
-  blink::WebLayerPositionConstraint web_constraint;
-  web_constraint.isFixedPosition = constraint.is_fixed_position();
-  web_constraint.isFixedToRightEdge = constraint.is_fixed_to_right_edge();
-  web_constraint.isFixedToBottomEdge = constraint.is_fixed_to_bottom_edge();
-  return web_constraint;
-}
-
-static cc::LayerPositionConstraint ToLayerPositionConstraint(
-    const blink::WebLayerPositionConstraint& web_constraint) {
-  cc::LayerPositionConstraint constraint;
-  constraint.set_is_fixed_position(web_constraint.isFixedPosition);
-  constraint.set_is_fixed_to_right_edge(web_constraint.isFixedToRightEdge);
-  constraint.set_is_fixed_to_bottom_edge(web_constraint.isFixedToBottomEdge);
-  return constraint;
-}
-
-void WebLayerImpl::setPositionConstraint(
-    const blink::WebLayerPositionConstraint& constraint) {
-  layer_->SetPositionConstraint(ToLayerPositionConstraint(constraint));
-}
-
-blink::WebLayerPositionConstraint WebLayerImpl::positionConstraint() const {
-  return ToWebLayerPositionConstraint(layer_->position_constraint());
-}
-
-void WebLayerImpl::setScrollClient(blink::WebLayerScrollClient* scroll_client) {
-  if (scroll_client) {
-    layer_->set_did_scroll_callback(
-        base::Bind(&blink::WebLayerScrollClient::didScroll,
-                   base::Unretained(scroll_client)));
-  } else {
-    layer_->set_did_scroll_callback(base::Closure());
-  }
-}
-
-bool WebLayerImpl::isOrphan() const {
-  return !layer_->layer_tree_host();
-}
-
-void WebLayerImpl::setWebLayerClient(blink::WebLayerClient* client) {
-  web_layer_client_ = client;
-}
-
-class TracedDebugInfo : public base::trace_event::ConvertableToTraceFormat {
- public:
-  // This object takes ownership of the debug_info object.
-  explicit TracedDebugInfo(blink::WebGraphicsLayerDebugInfo* debug_info)
-      : debug_info_(debug_info) {}
-  void AppendAsTraceFormat(std::string* out) const override {
-    DCHECK(thread_checker_.CalledOnValidThread());
-    blink::WebString web_string;
-    debug_info_->appendAsTraceFormat(&web_string);
-    out->append(web_string.utf8());
-  }
-
- private:
-  ~TracedDebugInfo() override {}
-  scoped_ptr<blink::WebGraphicsLayerDebugInfo> debug_info_;
-  base::ThreadChecker thread_checker_;
-};
-
-scoped_refptr<base::trace_event::ConvertableToTraceFormat>
-WebLayerImpl::TakeDebugInfo() {
-  if (!web_layer_client_)
-    return nullptr;
-  blink::WebGraphicsLayerDebugInfo* debug_info =
-      web_layer_client_->takeDebugInfoFor(this);
-
-  if (debug_info)
-    return new TracedDebugInfo(debug_info);
-  else
-    return nullptr;
-}
-
-void WebLayerImpl::setScrollParent(blink::WebLayer* parent) {
-  cc::Layer* scroll_parent = nullptr;
-  if (parent)
-    scroll_parent = static_cast<WebLayerImpl*>(parent)->layer();
-  layer_->SetScrollParent(scroll_parent);
-}
-
-void WebLayerImpl::setClipParent(blink::WebLayer* parent) {
-  cc::Layer* clip_parent = nullptr;
-  if (parent)
-    clip_parent = static_cast<WebLayerImpl*>(parent)->layer();
-  layer_->SetClipParent(clip_parent);
-}
-
-Layer* WebLayerImpl::layer() const {
-  return layer_.get();
-}
-
-}  // namespace cc_blink