Support bottom-right anchored fixed-position elements during a pinch gesture

cc/layer_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/layer_impl.h"
 
 #include "base/debug/trace_event.h"
 #include "base/stringprintf.h"
 #include "base/values.h"
 #include "cc/animation_registrar.h"
@@ skipping 33 matching lines @@
     , m_masksToBounds(false)
     , m_contentsOpaque(false)
     , m_opacity(1.0)
     , m_preserves3D(false)
     , m_useParentBackfaceVisibility(false)
     , m_drawCheckerboardForMissingTiles(false)
     , m_drawsContent(false)
     , m_forceRenderSurface(false)
     , m_isContainerForFixedPositionLayers(false)
     , m_fixedToContainerLayer(false)
+    , m_fixedToRightEdge(false)
+    , m_fixedToBottomEdge(false)
     , m_drawDepth(0)
 #ifndef NDEBUG
     , m_betweenWillDrawAndDidDraw(false)
 #endif
     , m_horizontalScrollbarLayer(0)
     , m_verticalScrollbarLayer(0)
 {
     DCHECK(m_layerId > 0);
     DCHECK(m_layerTreeImpl);
     m_layerTreeImpl->RegisterLayer(this);
@@ skipping 272 matching lines @@
     layer->setMasksToBounds(m_masksToBounds);
     layer->setShouldScrollOnMainThread(m_shouldScrollOnMainThread);
     layer->setHaveWheelEventHandlers(m_haveWheelEventHandlers);
     layer->setNonFastScrollableRegion(m_nonFastScrollableRegion);
     layer->setTouchEventHandlerRegion(m_touchEventHandlerRegion);
     layer->setContentsOpaque(m_contentsOpaque);
     if (!opacityIsAnimating())
         layer->setOpacity(m_opacity);
     layer->setPosition(m_position);
     layer->setIsContainerForFixedPositionLayers(m_isContainerForFixedPositionLayers);
+    layer->setFixedContainerSizeDelta(m_fixedContainerSizeDelta);
     layer->setFixedToContainerLayer(m_fixedToContainerLayer);
+    layer->setFixedToRightEdge(m_fixedToRightEdge);
+    layer->setFixedToBottomEdge(m_fixedToBottomEdge);
     layer->setPreserves3D(preserves3D());
     layer->setUseParentBackfaceVisibility(m_useParentBackfaceVisibility);
     layer->setSublayerTransform(m_sublayerTransform);
     if (!transformIsAnimating())
         layer->setTransform(m_transform);
 
     layer->setScrollable(m_scrollable);
     layer->setScrollOffset(m_scrollOffset);
     layer->setMaxScrollOffset(m_maxScrollOffset);
 
@@ skipping 628 matching lines @@
 }
 
 scoped_ptr<base::Value> LayerImpl::AsValue() const
 {
     scoped_ptr<base::DictionaryValue> state(new base::DictionaryValue());
     AsValueInto(state.get());
     return state.PassAs<base::Value>();
 }
 
 }  // namespace cc