cc: Add SwapPromiseManager and SurfaceSequenceGenerator.

cc/trees/latency_info_swap_promise_monitor.cc

 // Copyright 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 "cc/trees/latency_info_swap_promise_monitor.h"
 
 #include <stdint.h>
 
 #include "base/threading/platform_thread.h"
 #include "cc/output/latency_info_swap_promise.h"
-#include "cc/trees/layer_tree_host.h"
 #include "cc/trees/layer_tree_host_impl.h"
 #include "cc/trees/layer_tree_impl.h"
+#include "cc/trees/swap_promise_manager.h"
 
 namespace {
 
 bool AddRenderingScheduledComponent(ui::LatencyInfo* latency_info,
                                     bool on_main) {
   ui::LatencyComponentType type =
       on_main ? ui::INPUT_EVENT_LATENCY_RENDERING_SCHEDULED_MAIN_COMPONENT
               : ui::INPUT_EVENT_LATENCY_RENDERING_SCHEDULED_IMPL_COMPONENT;
   if (latency_info->FindLatency(type, 0, nullptr))
     return false;
@@ skipping 11 matching lines @@
       latency_info->trace_id());
   return true;
 }
 
 }  // namespace
 
 namespace cc {
 
 LatencyInfoSwapPromiseMonitor::LatencyInfoSwapPromiseMonitor(
     ui::LatencyInfo* latency,
-    LayerTreeHostInterface* layer_tree_host,
+    SwapPromiseManager* swap_promise_manager,
     LayerTreeHostImpl* layer_tree_host_impl)
-    : SwapPromiseMonitor(layer_tree_host, layer_tree_host_impl),
+    : SwapPromiseMonitor(swap_promise_manager, layer_tree_host_impl),
       latency_(latency) {}
 
 LatencyInfoSwapPromiseMonitor::~LatencyInfoSwapPromiseMonitor() {
 }
 
 void LatencyInfoSwapPromiseMonitor::OnSetNeedsCommitOnMain() {
   if (AddRenderingScheduledComponent(latency_, true /* on_main */)) {
     std::unique_ptr<SwapPromise> swap_promise(
         new LatencyInfoSwapPromise(*latency_));
-    layer_tree_host_->QueueSwapPromise(std::move(swap_promise));
+    swap_promise_manager_->QueueSwapPromise(std::move(swap_promise));
   }
 }
 
 void LatencyInfoSwapPromiseMonitor::OnSetNeedsRedrawOnImpl() {
   if (AddRenderingScheduledComponent(latency_, false /* on_main */)) {
     std::unique_ptr<SwapPromise> swap_promise(
         new LatencyInfoSwapPromise(*latency_));
     // Queue a pinned swap promise on the active tree. This will allow
     // measurement of the time to the next SwapBuffers(). The swap
     // promise is pinned so that it is not interrupted by new incoming
@@ skipping 29 matching lines @@
         *latency_,
         ui::INPUT_EVENT_LATENCY_FORWARD_SCROLL_UPDATE_TO_MAIN_COMPONENT);
     std::unique_ptr<SwapPromise> swap_promise(
         new LatencyInfoSwapPromise(new_latency));
     layer_tree_host_impl_->QueueSwapPromiseForMainThreadScrollUpdate(
         std::move(swap_promise));
   }
 }
 
 }  // namespace cc