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846d8789ee
Various places in dom/ use the pattern: already_AddRefed<NodeInfo> ni = ...; which is supposed to be disallowed by our static analysis code, but isn't, for whatever reason. To fix our static analysis code, we need to eliminate instances of the above pattern. Unfortunately, eliminating this pattern requires restructuring how Nodes are created. Most Node subclasses take `already_AddRefed<NodeInfo>&` in their constructors, and a few accept `already_AddRefed<NodeInfo>&&`. We need to enforce the latter pattern consistently, which requires changing dozens of source files.
204 lines
6.6 KiB
C++
204 lines
6.6 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "mozilla/dom/HTMLIFrameElement.h"
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#include "mozilla/dom/HTMLIFrameElementBinding.h"
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#include "mozilla/MappedDeclarations.h"
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#include "nsMappedAttributes.h"
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#include "nsAttrValueInlines.h"
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#include "nsError.h"
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#include "nsStyleConsts.h"
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#include "nsContentUtils.h"
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#include "nsSandboxFlags.h"
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NS_IMPL_NS_NEW_HTML_ELEMENT_CHECK_PARSER(IFrame)
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namespace mozilla {
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namespace dom {
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// static
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const DOMTokenListSupportedToken HTMLIFrameElement::sSupportedSandboxTokens[] = {
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#define SANDBOX_KEYWORD(string, atom, flags) string,
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#include "IframeSandboxKeywordList.h"
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#undef SANDBOX_KEYWORD
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nullptr
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};
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HTMLIFrameElement::HTMLIFrameElement(already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo,
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FromParser aFromParser)
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: nsGenericHTMLFrameElement(std::move(aNodeInfo), aFromParser)
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{
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}
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HTMLIFrameElement::~HTMLIFrameElement()
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{
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}
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NS_IMPL_ELEMENT_CLONE(HTMLIFrameElement)
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bool
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HTMLIFrameElement::ParseAttribute(int32_t aNamespaceID,
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nsAtom* aAttribute,
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const nsAString& aValue,
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nsIPrincipal* aMaybeScriptedPrincipal,
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nsAttrValue& aResult)
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{
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if (aNamespaceID == kNameSpaceID_None) {
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if (aAttribute == nsGkAtoms::marginwidth) {
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return aResult.ParseSpecialIntValue(aValue);
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}
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if (aAttribute == nsGkAtoms::marginheight) {
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return aResult.ParseSpecialIntValue(aValue);
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}
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if (aAttribute == nsGkAtoms::width) {
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return aResult.ParseSpecialIntValue(aValue);
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}
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if (aAttribute == nsGkAtoms::height) {
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return aResult.ParseSpecialIntValue(aValue);
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}
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if (aAttribute == nsGkAtoms::frameborder) {
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return ParseFrameborderValue(aValue, aResult);
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}
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if (aAttribute == nsGkAtoms::scrolling) {
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return ParseScrollingValue(aValue, aResult);
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}
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if (aAttribute == nsGkAtoms::align) {
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return ParseAlignValue(aValue, aResult);
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}
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if (aAttribute == nsGkAtoms::sandbox) {
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aResult.ParseAtomArray(aValue);
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return true;
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}
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}
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return nsGenericHTMLFrameElement::ParseAttribute(aNamespaceID, aAttribute,
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aValue,
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aMaybeScriptedPrincipal,
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aResult);
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}
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void
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HTMLIFrameElement::MapAttributesIntoRule(const nsMappedAttributes* aAttributes,
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MappedDeclarations& aDecls)
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{
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// frameborder: 0 | 1 (| NO | YES in quirks mode)
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// If frameborder is 0 or No, set border to 0
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// else leave it as the value set in html.css
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const nsAttrValue* value = aAttributes->GetAttr(nsGkAtoms::frameborder);
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if (value && value->Type() == nsAttrValue::eEnum) {
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int32_t frameborder = value->GetEnumValue();
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if (NS_STYLE_FRAME_0 == frameborder ||
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NS_STYLE_FRAME_NO == frameborder ||
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NS_STYLE_FRAME_OFF == frameborder) {
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aDecls.SetPixelValueIfUnset(eCSSProperty_border_top_width, 0.0f);
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aDecls.SetPixelValueIfUnset(eCSSProperty_border_right_width, 0.0f);
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aDecls.SetPixelValueIfUnset(eCSSProperty_border_bottom_width, 0.0f);
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aDecls.SetPixelValueIfUnset(eCSSProperty_border_left_width, 0.0f);
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}
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}
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nsGenericHTMLElement::MapImageSizeAttributesInto(aAttributes, aDecls);
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nsGenericHTMLElement::MapImageAlignAttributeInto(aAttributes, aDecls);
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nsGenericHTMLElement::MapCommonAttributesInto(aAttributes, aDecls);
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}
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NS_IMETHODIMP_(bool)
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HTMLIFrameElement::IsAttributeMapped(const nsAtom* aAttribute) const
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{
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static const MappedAttributeEntry attributes[] = {
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{ &nsGkAtoms::width },
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{ &nsGkAtoms::height },
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{ &nsGkAtoms::frameborder },
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{ nullptr },
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};
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static const MappedAttributeEntry* const map[] = {
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attributes,
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sImageAlignAttributeMap,
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sCommonAttributeMap,
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};
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return FindAttributeDependence(aAttribute, map);
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}
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nsMapRuleToAttributesFunc
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HTMLIFrameElement::GetAttributeMappingFunction() const
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{
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return &MapAttributesIntoRule;
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}
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nsresult
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HTMLIFrameElement::AfterSetAttr(int32_t aNameSpaceID, nsAtom* aName,
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const nsAttrValue* aValue,
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const nsAttrValue* aOldValue,
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nsIPrincipal* aMaybeScriptedPrincipal,
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bool aNotify)
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{
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AfterMaybeChangeAttr(aNameSpaceID, aName, aNotify);
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if (aNameSpaceID == kNameSpaceID_None) {
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if (aName == nsGkAtoms::sandbox) {
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if (mFrameLoader) {
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// If we have an nsFrameLoader, apply the new sandbox flags.
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// Since this is called after the setter, the sandbox flags have
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// alreay been updated.
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mFrameLoader->ApplySandboxFlags(GetSandboxFlags());
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}
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}
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}
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return nsGenericHTMLFrameElement::AfterSetAttr(aNameSpaceID, aName,
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aValue, aOldValue,
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aMaybeScriptedPrincipal,
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aNotify);
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}
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nsresult
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HTMLIFrameElement::OnAttrSetButNotChanged(int32_t aNamespaceID, nsAtom* aName,
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const nsAttrValueOrString& aValue,
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bool aNotify)
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{
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AfterMaybeChangeAttr(aNamespaceID, aName, aNotify);
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return nsGenericHTMLFrameElement::OnAttrSetButNotChanged(aNamespaceID, aName,
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aValue, aNotify);
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}
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void
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HTMLIFrameElement::AfterMaybeChangeAttr(int32_t aNamespaceID,
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nsAtom* aName,
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bool aNotify)
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{
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if (aNamespaceID == kNameSpaceID_None) {
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if (aName == nsGkAtoms::srcdoc) {
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// Don't propagate errors from LoadSrc. The attribute was successfully
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// set/unset, that's what we should reflect.
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LoadSrc();
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}
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}
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}
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uint32_t
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HTMLIFrameElement::GetSandboxFlags()
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{
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const nsAttrValue* sandboxAttr = GetParsedAttr(nsGkAtoms::sandbox);
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// No sandbox attribute, no sandbox flags.
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if (!sandboxAttr) {
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return SANDBOXED_NONE;
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}
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return nsContentUtils::ParseSandboxAttributeToFlags(sandboxAttr);
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}
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JSObject*
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HTMLIFrameElement::WrapNode(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
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{
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return HTMLIFrameElement_Binding::Wrap(aCx, this, aGivenProto);
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}
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} // namespace dom
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} // namespace mozilla
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