Plumb activation time to main

cc/trees/single_thread_proxy.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/single_thread_proxy.h"
 
 #include "base/auto_reset.h"
 #include "base/memory/ptr_util.h"
 #include "base/profiler/scoped_tracker.h"
 #include "base/trace_event/trace_event.h"
@@ skipping 301 matching lines @@
   TRACE_EVENT1("cc", "SingleThreadProxy::OnCanDrawStateChanged", "can_draw",
                can_draw);
   DCHECK(task_runner_provider_->IsImplThread());
   if (scheduler_on_impl_thread_)
     scheduler_on_impl_thread_->SetCanDraw(can_draw);
 }
 
 void SingleThreadProxy::NotifyReadyToActivate() {
   TRACE_EVENT0("cc", "SingleThreadProxy::NotifyReadyToActivate");
   DebugScopedSetImplThread impl(task_runner_provider_);
-  if (scheduler_on_impl_thread_)
-    scheduler_on_impl_thread_->NotifyReadyToActivate();
+  if (scheduler_on_impl_thread_) {
+    // The argument to NotifyReadyToActivate is the pending-tree for computing
+    // Activation time in ProxyImpl. However this is not applicable here.
+    scheduler_on_impl_thread_->NotifyReadyToActivate(0);
+  }
 }
 
 void SingleThreadProxy::NotifyReadyToDraw() {
   TRACE_EVENT0("cc", "SingleThreadProxy::NotifyReadyToDraw");
   DebugScopedSetImplThread impl(task_runner_provider_);
   if (scheduler_on_impl_thread_)
     scheduler_on_impl_thread_->NotifyReadyToDraw();
 }
 
 void SingleThreadProxy::SetNeedsRedrawOnImplThread() {
@@ skipping 454 matching lines @@
 void SingleThreadProxy::DidFinishImplFrame() {
   layer_tree_host_impl_->DidFinishImplFrame();
 #if DCHECK_IS_ON()
   DCHECK(inside_impl_frame_)
       << "DidFinishImplFrame called while not inside an impl frame!";
   inside_impl_frame_ = false;
 #endif
 }
 
 }  // namespace cc