Remove the acceleratedCompositingForAnimationEnabled setting.

Source/core/rendering/compositing/CompositingReasonFinder.cpp

 // Copyright 2014 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 "config.h"
 #include "core/rendering/compositing/CompositingReasonFinder.h"
 
 #include "CSSPropertyNames.h"
 #include "HTMLNames.h"
 #include "core/frame/FrameView.h"
@@ skipping 31 matching lines @@
 {
     m_compositingTriggers = 0;
 
     Settings& settings = m_renderView.document().page()->settings();
     if (settings.acceleratedCompositingForVideoEnabled())
         m_compositingTriggers |= VideoTrigger;
     if (settings.acceleratedCompositingForPluginsEnabled())
         m_compositingTriggers |= PluginTrigger;
     if (settings.acceleratedCompositingForCanvasEnabled())
         m_compositingTriggers |= CanvasTrigger;
-    if (settings.acceleratedCompositingForAnimationEnabled())
-        m_compositingTriggers |= AnimationTrigger;
     if (settings.compositedScrollingForFramesEnabled())
         m_compositingTriggers |= ScrollableInnerFrameTrigger;
     if (settings.acceleratedCompositingForFiltersEnabled())
         m_compositingTriggers |= FilterTrigger;
     if (settings.acceleratedCompositingForGpuRasterizationHintEnabled())
         m_compositingTriggers |= GPURasterizationTrigger;
 
     // We map both these settings to universal overlow scrolling.
     // FIXME: Replace these settings with a generic compositing setting for HighDPI.
     if (settings.acceleratedCompositingForOverflowScrollEnabled() || settings.compositorDrivenAcceleratedScrollingEnabled())
         m_compositingTriggers |= OverflowScrollTrigger;
 
     // FIXME: acceleratedCompositingForFixedPositionEnabled should be renamed acceleratedCompositingForViewportConstrainedPositionEnabled().
     // Or the sticky and fixed position elements should be behind different flags.
     if (settings.acceleratedCompositingForFixedPositionEnabled())
         m_compositingTriggers |= ViewportConstrainedPositionedTrigger;
 }
 
-bool CompositingReasonFinder::hasAnimationTrigger() const
-{
-    return m_compositingTriggers & AnimationTrigger;
-}
-
 bool CompositingReasonFinder::hasOverflowScrollTrigger() const
 {
     return m_compositingTriggers & OverflowScrollTrigger;
 }
 
 // FIXME: This is a temporary trigger for enabling the old, opt-in path for
 // accelerated overflow scroll. It should be removed once the "universal"
 // path is ready (crbug.com/254111).
 bool CompositingReasonFinder::hasLegacyOverflowScrollTrigger() const
 {
@@ skipping 123 matching lines @@
         directReasons |= CompositingReasonPositionFixed;
 
     directReasons |= renderer->additionalCompositingReasons(m_compositingTriggers);
 
     ASSERT(!(directReasons & CompositingReasonComboAllStyleDeterminedReasons));
     return directReasons;
 }
 
 bool CompositingReasonFinder::requiresCompositingForAnimation(RenderObject* renderer) const
 {
-    if (!(m_compositingTriggers & AnimationTrigger))
-        return false;
-
     return renderer->style()->shouldCompositeForCurrentAnimations();
 }
 
 bool CompositingReasonFinder::requiresCompositingForOutOfFlowClipping(const RenderLayer* layer) const
 {
     return layer->isUnclippedDescendant();
 }
 
 bool CompositingReasonFinder::requiresCompositingForOverflowScrollingParent(const RenderLayer* layer) const
 {
@@ skipping 119 matching lines @@
                 *needToRecomputeCompositingRequirements = true;
             }
             return false;
         }
     }
 
     return true;
 }
 
 }