WIP - compositor worker mega patch.

cc/blink/web_compositor_mutable_state_impl.cc

-// Copyright 2015 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_compositor_mutable_state_impl.h"
-
-#include "cc/animation/layer_tree_mutation.h"
-#include "cc/layers/layer_impl.h"
-#include "cc/trees/layer_tree_impl.h"
-
-namespace cc_blink {
-
-WebCompositorMutableStateImpl::WebCompositorMutableStateImpl(
-    cc::LayerTreeMutation* mutation,
-    cc::LayerImpl* main_layer,
-    cc::LayerImpl* scroll_layer)
-    : mutation_(mutation),
-      main_layer_(main_layer),
-      scroll_layer_(scroll_layer) {}
-
-WebCompositorMutableStateImpl::~WebCompositorMutableStateImpl() {}
-
-double WebCompositorMutableStateImpl::opacity() const {
-  return main_layer_->opacity();
-}
-
-void WebCompositorMutableStateImpl::setOpacity(double opacity) {
-  if (!main_layer_)
-    return;
-  main_layer_->OnOpacityAnimated(opacity);
-  mutation_->SetOpacity(opacity);
-}
-
-const SkMatrix44& WebCompositorMutableStateImpl::transform() const {
-  static SkMatrix44 identity;
-  return main_layer_ ? main_layer_->transform().matrix() : identity;
-}
-
-void WebCompositorMutableStateImpl::setTransform(const SkMatrix44& matrix) {
-  if (!main_layer_)
-    return;
-  main_layer_->OnTransformAnimated(gfx::Transform(matrix));
-  mutation_->SetTransform(matrix);
-}
-
-double WebCompositorMutableStateImpl::scrollLeft() const {
-  return scroll_layer_ ? scroll_layer_->CurrentScrollOffset().x() : 0.0;
-}
-
-void WebCompositorMutableStateImpl::setScrollLeft(double scroll_left) {
-  if (!scroll_layer_)
-    return;
-  gfx::ScrollOffset offset = scroll_layer_->CurrentScrollOffset();
-  offset.set_x(scroll_left);
-  scroll_layer_->OnScrollOffsetAnimated(offset);
-  mutation_->SetScrollLeft(scroll_left);
-}
-
-double WebCompositorMutableStateImpl::scrollTop() const {
-  return scroll_layer_ ? scroll_layer_->CurrentScrollOffset().y() : 0.0;
-}
-
-void WebCompositorMutableStateImpl::setScrollTop(double scroll_top) {
-  if (!scroll_layer_)
-    return;
-  gfx::ScrollOffset offset = scroll_layer_->CurrentScrollOffset();
-  offset.set_y(scroll_top);
-  scroll_layer_->OnScrollOffsetAnimated(offset);
-  mutation_->SetScrollTop(scroll_top);
-}
-
-}  // namespace cc_blink