compositor-worker: Initialize CW machinery plumbing to compositor and fire CW rAF callbacks.

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>
 
 #include "base/command_line.h"
 #include "base/location.h"
 #include "base/logging.h"
 #include "base/numerics/safe_conversions.h"
 #include "base/single_thread_task_runner.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/synchronization/lock.h"
 #include "base/sys_info.h"
 #include "base/thread_task_runner_handle.h"
 #include "base/time/time.h"
 #include "base/values.h"
 #include "build/build_config.h"
 #include "cc/animation/animation_host.h"
 #include "cc/animation/animation_timeline.h"
+#include "cc/animation/layer_tree_mutator.h"
 #include "cc/base/switches.h"
 #include "cc/blink/web_layer_impl.h"
 #include "cc/debug/layer_tree_debug_state.h"
 #include "cc/debug/micro_benchmark.h"
 #include "cc/input/layer_selection_bound.h"
 #include "cc/layers/layer.h"
 #include "cc/output/begin_frame_args.h"
 #include "cc/output/copy_output_request.h"
 #include "cc/output/copy_output_result.h"
 #include "cc/output/latency_info_swap_promise.h"
 #include "cc/output/swap_promise.h"
 #include "cc/proto/compositor_message.pb.h"
 #include "cc/resources/single_release_callback.h"
 #include "cc/scheduler/begin_frame_source.h"
 #include "cc/trees/latency_info_swap_promise_monitor.h"
 #include "cc/trees/layer_tree_host.h"
 #include "cc/trees/remote_proto_channel.h"
 #include "components/scheduler/renderer/renderer_scheduler.h"
 #include "content/common/content_switches_internal.h"
 #include "content/common/gpu/client/context_provider_command_buffer.h"
 #include "content/common/input/input_event_utils.h"
 #include "content/public/common/content_client.h"
 #include "content/public/common/content_switches.h"
 #include "content/renderer/gpu/render_widget_compositor_delegate.h"
 #include "content/renderer/input/input_handler_manager.h"
 #include "gpu/command_buffer/client/gles2_interface.h"
 #include "gpu/command_buffer/service/gpu_switches.h"
 #include "third_party/WebKit/public/platform/WebCompositeAndReadbackAsyncCallback.h"
+#include "third_party/WebKit/public/platform/WebCompositorMutatorClient.h"
 #include "third_party/WebKit/public/platform/WebLayoutAndPaintAsyncCallback.h"
 #include "third_party/WebKit/public/platform/WebSize.h"
 #include "third_party/WebKit/public/web/WebKit.h"
 #include "third_party/WebKit/public/web/WebRuntimeFeatures.h"
 #include "third_party/WebKit/public/web/WebSelection.h"
 #include "ui/gl/gl_switches.h"
 #include "ui/native_theme/native_theme_switches.h"
 
 #if defined(OS_ANDROID)
 #include "base/android/build_info.h"
@@ skipping 652 matching lines @@
 void RenderWidgetCompositor::registerSelection(
     const blink::WebSelection& selection) {
   layer_tree_host_->RegisterSelection(ConvertWebSelection(selection));
 }
 
 void RenderWidgetCompositor::clearSelection() {
   cc::LayerSelection empty_selection;
   layer_tree_host_->RegisterSelection(empty_selection);
 }
 
+void RenderWidgetCompositor::setMutatorClient(
+    std::unique_ptr<blink::WebCompositorMutatorClient> client) {
+  TRACE_EVENT0("compositor-worker", "RenderWidgetCompositor::setMutatorClient");
+  layer_tree_host_->SetLayerTreeMutator(std::move(client));
+}
+
 static_assert(static_cast<cc::EventListenerClass>(
                   blink::WebEventListenerClass::TouchStartOrMove) ==
                   cc::EventListenerClass::kTouchStartOrMove,
               "EventListenerClass and WebEventListenerClass enums must match");
 static_assert(static_cast<cc::EventListenerClass>(
                   blink::WebEventListenerClass::MouseWheel) ==
                   cc::EventListenerClass::kMouseWheel,
               "EventListenerClass and WebEventListenerClass enums must match");
 
 static_assert(static_cast<cc::EventListenerProperties>(
@@ skipping 385 matching lines @@
 #endif
   return actual;
 }
 
 void RenderWidgetCompositor::SetPaintedDeviceScaleFactor(
     float device_scale) {
   layer_tree_host_->SetPaintedDeviceScaleFactor(device_scale);
 }
 
 }  // namespace content