EarlyOut_AnimatedTooRecently should only be done in software mode

content/renderer/render_widget.cc

 // Copyright (c) 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 "content/renderer/render_widget.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/debug/trace_event.h"
 #include "base/logging.h"
@@ skipping 633 matching lines @@
 }
 
 void RenderWidget::AnimateIfNeeded() {
   if (!animation_update_pending_)
     return;
 
   // Target 60FPS if vsync is on. Go as fast as we can if vsync is off.
   int animationInterval = IsRenderingVSynced() ? 16 : 0;
 
   base::Time now = base::Time::Now();
-  if (now >= animation_floor_time_) {
+  if (now >= animation_floor_time_ || is_accelerated_compositing_active_) {

[jamesr, 2011/12/09 20:38:14]

shouldn't this be checking using_asynchronous_swapbuffers_ ? if it doesn't need
to, why do we have that bool?

     TRACE_EVENT0("renderer", "RenderWidget::AnimateIfNeeded")
     animation_floor_time_ = now +
         base::TimeDelta::FromMilliseconds(animationInterval);
     // Set a timer to call us back after animationInterval before
     // running animation callbacks so that if a callback requests another
     // we'll be sure to run it at the proper time.
     MessageLoop::current()->PostDelayedTask(
         FROM_HERE, base::Bind(&RenderWidget::AnimationCallback, this),
         animationInterval);
     animation_task_posted_ = true;
@@ skipping 838 matching lines @@
   }
 }
 
 bool RenderWidget::WillHandleMouseEvent(const WebKit::WebMouseEvent& event) {
   return false;
 }
 
 bool RenderWidget::WebWidgetHandlesCompositorScheduling() const {
   return false;
 }