Queue latency info swap promises in a separate already-active queue.

cc/trees/layer_tree_impl.cc

 // Copyright 2011 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/layer_tree_impl.h"
 
 #include <algorithm>
 #include <limits>
 #include <set>
 
@@ skipping 206 matching lines @@
   // The request queue should have been processed and does not require a push.
   DCHECK_EQ(ui_resource_request_queue_.size(), 0u);
 
   target_tree->SetPropertyTrees(property_trees_);
 
   if (next_activation_forces_redraw_) {
     target_tree->ForceRedrawNextActivation();
     next_activation_forces_redraw_ = false;
   }
 
+  for (auto* swap_promise : pinned_swap_promise_list_)
+    swap_promise->DidActivate();
+  pinned_swap_promise_list_.clear();
+
   target_tree->PassSwapPromises(&swap_promise_list_);
 
   target_tree->set_top_controls_shrink_blink_size(
       top_controls_shrink_blink_size_);
   target_tree->set_top_controls_height(top_controls_height_);
   target_tree->PushTopControls(nullptr);
 
   target_tree->set_hide_pinch_scrollbars_near_min_scale(
       hide_pinch_scrollbars_near_min_scale_);
 
@@ skipping 560 matching lines @@
   // if we were in a good state.
   layer_tree_host_impl_->ResetRequiresHighResToDraw();
 
   if (root_layer()) {
     LayerTreeHostCommon::CallFunctionForSubtree(
         root_layer(), [](LayerImpl* layer) { layer->DidBecomeActive(); });
   }
 
   for (auto* swap_promise : swap_promise_list_)
     swap_promise->DidActivate();
+
   devtools_instrumentation::DidActivateLayerTree(layer_tree_host_impl_->id(),
                                                  source_frame_number_);
 }
 
 bool LayerTreeImpl::RequiresHighResToDraw() const {
   return layer_tree_host_impl_->RequiresHighResToDraw();
 }
 
 bool LayerTreeImpl::ViewportSizeInvalid() const {
   return viewport_size_invalid_;
@@ skipping 207 matching lines @@
     if (!it.represents_itself())
       continue;
     TracedValue::AppendIDRef(*it, state);
   }
   state->EndArray();
 
   state->BeginArray("swap_promise_trace_ids");
   for (auto* swap_promise : swap_promise_list_)
     state->AppendDouble(swap_promise->TraceId());
   state->EndArray();
+
+  state->BeginArray("pinned_swap_promise_trace_ids");
+  for (auto* swap_promise : pinned_swap_promise_list_)
+    state->AppendDouble(swap_promise->TraceId());
+  state->EndArray();
 }
 
 void LayerTreeImpl::SetRootLayerScrollOffsetDelegate(
     LayerScrollOffsetDelegate* root_layer_scroll_offset_delegate) {
   if (root_layer_scroll_offset_delegate_ == root_layer_scroll_offset_delegate)
     return;
 
   root_layer_scroll_offset_delegate_ = root_layer_scroll_offset_delegate;
 
   if (root_layer_scroll_offset_delegate_) {
@@ skipping 57 matching lines @@
       inner_viewport_offset);
 
   UpdateRootScrollOffsetDelegate();
 }
 
 void LayerTreeImpl::QueueSwapPromise(scoped_ptr<SwapPromise> swap_promise) {
   DCHECK(swap_promise);
   swap_promise_list_.push_back(swap_promise.Pass());
 }
 
+void LayerTreeImpl::QueuePinnedSwapPromise(
+    scoped_ptr<SwapPromise> swap_promise) {
+  DCHECK(swap_promise);
+  pinned_swap_promise_list_.push_back(swap_promise.Pass());
+}
+
 void LayerTreeImpl::PassSwapPromises(
     ScopedPtrVector<SwapPromise>* new_swap_promise) {
-  swap_promise_list_.insert_and_take(swap_promise_list_.end(),
-                                     new_swap_promise);
-  new_swap_promise->clear();
+  for (auto* swap_promise : swap_promise_list_) {
+    swap_promise->DidNotSwap(SwapPromise::SWAP_FAILS);
+  }
+  swap_promise_list_.clear();
+  swap_promise_list_.swap(*new_swap_promise);
 }
 
 void LayerTreeImpl::FinishSwapPromises(CompositorFrameMetadata* metadata) {
   for (auto* swap_promise : swap_promise_list_)
     swap_promise->DidSwap(metadata);
   swap_promise_list_.clear();
+  for (auto* swap_promise : pinned_swap_promise_list_)
+    swap_promise->DidSwap(metadata);
+  pinned_swap_promise_list_.clear();
 }
 
 void LayerTreeImpl::BreakSwapPromises(SwapPromise::DidNotSwapReason reason) {
   for (auto* swap_promise : swap_promise_list_)
     swap_promise->DidNotSwap(reason);
   swap_promise_list_.clear();
+  for (auto* swap_promise : pinned_swap_promise_list_)
+    swap_promise->DidNotSwap(reason);
+  pinned_swap_promise_list_.clear();
 }
 
 void LayerTreeImpl::DidModifyTilePriorities() {
   layer_tree_host_impl_->DidModifyTilePriorities();
 }
 
 void LayerTreeImpl::set_ui_resource_request_queue(
     const UIResourceRequestQueue& queue) {
   ui_resource_request_queue_ = queue;
 }
@@ skipping 610 matching lines @@
                                                    const gfx::BoxF& box,
                                                    gfx::BoxF* bounds) const {
   *bounds = gfx::BoxF();
   return layer_tree_host_impl_->animation_host()
              ? layer_tree_host_impl_->animation_host()
                    ->TransformAnimationBoundsForBox(layer->id(), box, bounds)
              : true;
 }
 
 }  // namespace cc