Move squash preventing reasons out of compositing reasons

third_party/WebKit/Source/platform/graphics/SquashingDisallowedReasons.cpp

+// Copyright 2016 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 "platform/graphics/SquashingDisallowedReasons.h"
+
+#include "wtf/StdLibExtras.h"
+
+namespace blink {
+
+const SquashingDisallowedReasonStringMap kSquashingDisallowedReasonStringMap[] = {
+    { SquashingDisallowedReasonScrollsWithRespectToSquashingLayer,
+        "scrollsWithRespectToSquashingLayer",
+        "Cannot be squashed since this layer scrolls with respect to the squashing layer" },
+    { SquashingDisallowedReasonSquashingSparsityExceeded,
+        "squashingSparsityExceeded",
+        "Cannot be squashed as the squashing layer would become too sparse" },
+    { SquashingDisallowedReasonClippingContainerMismatch,
+        "squashingClippingContainerMismatch",
+        "Cannot be squashed because this layer has a different clipping container than the squashing layer" },
+    { SquashingDisallowedReasonOpacityAncestorMismatch,
+        "squashingOpacityAncestorMismatch",
+        "Cannot be squashed because this layer has a different opacity ancestor than the squashing layer" },
+    { SquashingDisallowedReasonTransformAncestorMismatch,
+        "squashingTransformAncestorMismatch",
+        "Cannot be squashed because this layer has a different transform ancestor than the squashing layer" },
+    { SquashingDisallowedReasonFilterMismatch,
+        "squashingFilterAncestorMismatch",
+        "Cannot be squashed because this layer has a different filter ancestor than the squashing layer, or this layer has a filter" },
+    { SquashingDisallowedReasonWouldBreakPaintOrder,
+        "squashingWouldBreakPaintOrder",
+        "Cannot be squashed without breaking paint order" },
+    { SquashingDisallowedReasonSquashingVideoIsDisallowed,
+        "squashingVideoIsDisallowed",
+        "Squashing video is not supported" },
+    { SquashingDisallowedReasonSquashedLayerClipsCompositingDescendants,
+        "squashedLayerClipsCompositingDescendants",
+        "Squashing a layer that clips composited descendants is not supported." },
+    { SquashingDisallowedReasonSquashingLayoutPartIsDisallowed,
+        "squashingLayoutPartIsDisallowed",
+        "Squashing a frame, iframe or plugin is not supported." },
+    { SquashingDisallowedReasonSquashingReflectionIsDisallowed,
+        "squashingReflectionDisallowed",
+        "Squashing a element with a reflection is not supported." },
+    { SquashingDisallowedReasonSquashingBlendingIsDisallowed,
+        "squashingBlendingDisallowed",
+        "Squashing a layer with blending is not supported." },
+    { SquashingDisallowedReasonNearestFixedPositionMismatch,
+        "squashingNearestFixedPositionMismatch",
+        "Cannot be squashed because this layer has a different nearest fixed position layer than the squashing layer" },
+    { SquashingDisallowedReasonScrollChildWithCompositedDescendants,
+        "scrollChildWithCompositedDescendants",
+        "Squashing a scroll child with composited descendants is not supported." },
+    { SquashingDisallowedReasonSquashingLayerIsAnimating,
+        "squashingLayerIsAnimating",
+        "Cannot squash into a layer that is animating." },
+};
+
+const size_t kNumberOfSquashingDisallowedReasons = WTF_ARRAY_LENGTH(kSquashingDisallowedReasonStringMap);
+
+} // namespace blink