Turn FrameView's paintBehavior into a real global

Source/core/paint/DeprecatedPaintLayerPainter.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/paint/DeprecatedPaintLayerPainter.h"
 
 #include "core/frame/Settings.h"
 #include "core/layout/ClipPathOperation.h"
 #include "core/layout/LayoutBlock.h"
@@ skipping 42 matching lines @@
 {
     return (paintFlags & PaintLayerPaintingOverflowContents || (paintFlags & PaintLayerPaintingChildClippingMaskPhase && layoutObject->hasClipPath())) ? IgnoreOverflowClip : RespectOverflowClip;
 }
 
 void DeprecatedPaintLayerPainter::paintLayer(GraphicsContext* context, const DeprecatedPaintLayerPaintingInfo& paintingInfo, PaintLayerFlags paintFlags)
 {
     // https://code.google.com/p/chromium/issues/detail?id=343772
     DisableCompositingQueryAsserts disabler;
 
     if (m_paintLayer.compositingState() != NotComposited) {
-        if (paintingInfo.paintBehavior & PaintBehaviorFlattenCompositingLayers) {
-            // FIXME: ok, but what about PaintBehaviorFlattenCompositingLayers? That's for printing.
+        if (gGlobalPaintFlags & GlobalPaintFlattenCompositingLayers) {
+            // FIXME: ok, but what about GlobalPaintFlattenCompositingLayers? That's for printing and drag image.
             // FIXME: why isn't the code here global, as opposed to being set on each paintLayer() call?
             paintFlags |= PaintLayerUncachedClipRects;
         }
     }
 
     // Non self-painting leaf layers don't need to be painted as their layoutObject() should properly paint itself.
     if (!m_paintLayer.isSelfPaintingLayer() && !m_paintLayer.hasSelfPaintingLayerDescendant())
         return;
 
     if (shouldSuppressPaintingLayer(&m_paintLayer))
@@ skipping 160 matching lines @@
         ClipRectsCacheSlot cacheSlot = (paintFlags & PaintLayerUncachedClipRects) ? UncachedClipRects : PaintingClipRects;
         ShouldRespectOverflowClip respectOverflowClip = shouldRespectOverflowClip(paintFlags, m_paintLayer.layoutObject());
         if (fragmentPolicy == ForceSingleFragment)
             m_paintLayer.appendSingleFragmentIgnoringPagination(layerFragments, localPaintingInfo.rootLayer, localPaintingInfo.paintDirtyRect, cacheSlot, IgnoreOverlayScrollbarSize, respectOverflowClip, &offsetFromRoot, localPaintingInfo.subPixelAccumulation);
         else
             m_paintLayer.collectFragments(layerFragments, localPaintingInfo.rootLayer, localPaintingInfo.paintDirtyRect, cacheSlot, IgnoreOverlayScrollbarSize, respectOverflowClip, &offsetFromRoot, localPaintingInfo.subPixelAccumulation);
         if (shouldPaintContent)
             shouldPaintContent = atLeastOneFragmentIntersectsDamageRect(layerFragments, localPaintingInfo, paintFlags, offsetFromRoot);
     }
 
-    bool selectionOnly = localPaintingInfo.paintBehavior & PaintBehaviorSelectionOnly;
+    bool selectionOnly = gGlobalPaintFlags & GlobalPaintSelectionOnly;
     // If this layer's layoutObject is a child of the paintingRoot, we paint unconditionally, which
     // is done by passing a nil paintingRoot down to our layoutObject (as if no paintingRoot was ever set).
     // Else, our layout tree may or may not contain the painting root, so we pass that root along
     // so it will be tested against as we descend through the layoutObjects.
     LayoutObject* paintingRootForLayoutObject = 0;
     if (localPaintingInfo.paintingRoot && !m_paintLayer.layoutObject()->isDescendantOf(localPaintingInfo.paintingRoot))
         paintingRootForLayoutObject = localPaintingInfo.paintingRoot;
 
     { // Begin block for the lifetime of any filter.
         FilterPainter filterPainter(m_paintLayer, context, offsetFromRoot, layerFragments.isEmpty() ? ClipRect() : layerFragments[0].backgroundRect, localPaintingInfo, paintFlags,
@@ skipping 191 matching lines @@
 static bool paintForFixedRootBackground(const DeprecatedPaintLayer* layer, PaintLayerFlags paintFlags)
 {
     return layer->layoutObject()->isDocumentElement() && (paintFlags & PaintLayerPaintingRootBackgroundOnly);
 }
 
 bool DeprecatedPaintLayerPainter::shouldPaintLayerInSoftwareMode(const DeprecatedPaintLayerPaintingInfo& paintingInfo, PaintLayerFlags paintFlags)
 {
     DisableCompositingQueryAsserts disabler;
 
     return m_paintLayer.compositingState() == NotComposited
-        || (paintingInfo.paintBehavior & PaintBehaviorFlattenCompositingLayers)
+        || gGlobalPaintFlags & GlobalPaintFlattenCompositingLayers
         || ((paintFlags & PaintLayerPaintingReflection) && !m_paintLayer.has3DTransform())
         || paintForFixedRootBackground(&m_paintLayer, paintFlags);
 }
 
 void DeprecatedPaintLayerPainter::paintOverflowControlsForFragments(const DeprecatedPaintLayerFragments& layerFragments, GraphicsContext* context, const DeprecatedPaintLayerPaintingInfo& localPaintingInfo, PaintLayerFlags paintFlags)
 {
     bool needsScope = layerFragments.size() > 1;
     for (auto& fragment : layerFragments) {
         Optional<ScopeRecorder> scopeRecorder;
         if (needsScope)
@@ skipping 140 matching lines @@
     if (!m_paintLayer.containsDirtyOverlayScrollbars())
         return;
 
     DeprecatedPaintLayerPaintingInfo paintingInfo(&m_paintLayer, LayoutRect(enclosingIntRect(damageRect)), paintBehavior, LayoutSize(), paintingRoot);
     paintLayer(context, paintingInfo, PaintLayerPaintingOverlayScrollbars);
 
     m_paintLayer.setContainsDirtyOverlayScrollbars(false);
 }
 
 } // namespace blink