Blink Compositor Animation: Erase old animation system.

content/renderer/gpu/render_widget_compositor.cc

 // Copyright (c) 2013 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 "content/renderer/gpu/render_widget_compositor.h"
 
 #include <stddef.h>
 #include <limits>
 #include <string>
 #include <utility>
@@ skipping 233 matching lines @@
     } else {
       settings.renderer_settings.disable_display_vsync = true;
       settings.wait_for_beginframe_interval = false;
     }
   }
   settings.main_frame_before_activation_enabled =
       cmd->HasSwitch(cc::switches::kEnableMainFrameBeforeActivation) &&
       !cmd->HasSwitch(cc::switches::kDisableMainFrameBeforeActivation);
   settings.accelerated_animation_enabled =
       compositor_deps_->IsThreadedAnimationEnabled();
-
-  settings.use_compositor_animation_timelines =
-      !cmd->HasSwitch(switches::kDisableCompositorAnimationTimelines);
-  blink::WebRuntimeFeatures::enableCompositorAnimationTimelines(
-      settings.use_compositor_animation_timelines);
-
+  settings.use_compositor_animation_timelines = true;
   settings.use_mouse_wheel_gestures = UseGestureBasedWheelScrolling();
 
   settings.default_tile_size = CalculateDefaultTileSize(device_scale_factor);
   if (cmd->HasSwitch(switches::kDefaultTileWidth)) {
     int tile_width = 0;
     GetSwitchValueAsInt(*cmd,
                         switches::kDefaultTileWidth,
                         1,
                         std::numeric_limits<int>::max(),
                         &tile_width);
@@ skipping 416 matching lines @@
 }
 
 void RenderWidgetCompositor::setNeedsCompositorUpdate() {
   layer_tree_host_->SetNeedsUpdateLayers();
 }
 
 void RenderWidgetCompositor::didStopFlinging() {
   layer_tree_host_->DidStopFlinging();
 }
 
-void RenderWidgetCompositor::registerForAnimations(blink::WebLayer* layer) {
-  cc::Layer* cc_layer = static_cast<cc_blink::WebLayerImpl*>(layer)->layer();
-  cc_layer->RegisterForAnimations(layer_tree_host_->animation_registrar());
-}
-
 void RenderWidgetCompositor::registerViewportLayers(
     const blink::WebLayer* overscrollElasticityLayer,
     const blink::WebLayer* pageScaleLayer,
     const blink::WebLayer* innerViewportScrollLayer,
     const blink::WebLayer* outerViewportScrollLayer) {
   layer_tree_host_->RegisterViewportLayers(
       // TODO(bokan): This check can probably be removed now, but it looks
       // like overscroll elasticity may still be NULL until VisualViewport
       // registers its layers.
       // The scroll elasticity layer will only exist when using pinch virtual
@@ skipping 437 matching lines @@
 #endif
   return actual;
 }
 
 void RenderWidgetCompositor::SetPaintedDeviceScaleFactor(
     float device_scale) {
   layer_tree_host_->SetPaintedDeviceScaleFactor(device_scale);
 }
 
 }  // namespace content