--- a/dom/base/nsDOMWindowUtils.cpp
+++ b/dom/base/nsDOMWindowUtils.cpp
@@ -104,17 +104,17 @@
 #include "nsContentPermissionHelper.h"
 #include "nsCSSPseudoElements.h"            // for CSSPseudoElementType
 #include "nsNetUtil.h"
 #include "nsDocument.h"
 #include "HTMLImageElement.h"
 #include "mozilla/css/ImageLoader.h"
 #include "mozilla/layers/APZCTreeManager.h" // for layers::ZoomToRectBehavior
 #include "mozilla/dom/Promise.h"
-#include "mozilla/CSSStyleSheet.h"
+#include "mozilla/StyleSheetInlines.h"
 
 #ifdef XP_WIN
 #undef GetClassName
 #endif
 
 using namespace mozilla;
 using namespace mozilla::dom;
 using namespace mozilla::ipc;

--- a/dom/base/nsStyleLinkElement.h
+++ b/dom/base/nsStyleLinkElement.h
@@ -10,17 +10,17 @@
  * stylesheets (<style>, <link>, processing instructions, etc).
  */
 
 #ifndef nsStyleLinkElement_h___
 #define nsStyleLinkElement_h___
 
 #include "mozilla/Attributes.h"
 #include "mozilla/CORSMode.h"
-#include "mozilla/CSSStyleSheet.h"
+#include "mozilla/StyleSheetInlines.h"
 #include "mozilla/net/ReferrerPolicy.h"
 #include "nsCOMPtr.h"
 #include "nsIStyleSheetLinkingElement.h"
 #include "nsTArray.h"
 
 class nsIDocument;
 class nsIURI;
 

--- a/dom/base/nsTreeSanitizer.cpp
+++ b/dom/base/nsTreeSanitizer.cpp
@@ -2,17 +2,17 @@
 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 #include "nsTreeSanitizer.h"
 
 #include "mozilla/ArrayUtils.h"
-#include "mozilla/CSSStyleSheet.h"
+#include "mozilla/StyleSheetInlines.h"
 #include "mozilla/css/Declaration.h"
 #include "mozilla/css/StyleRule.h"
 #include "mozilla/css/Rule.h"
 #include "nsCSSParser.h"
 #include "nsCSSPropertyID.h"
 #include "nsUnicharInputStream.h"
 #include "nsIDOMCSSRule.h"
 #include "nsAttrName.h"

--- a/dom/ipc/ContentParent.cpp
+++ b/dom/ipc/ContentParent.cpp
@@ -30,17 +30,17 @@
 #include "CrashReporterParent.h"
 #include "DeviceStorageStatics.h"
 #include "GMPServiceParent.h"
 #include "HandlerServiceParent.h"
 #include "IHistory.h"
 #include "imgIContainer.h"
 #include "mozIApplication.h"
 #include "mozilla/ClearOnShutdown.h"
-#include "mozilla/CSSStyleSheet.h"
+#include "mozilla/StyleSheetInlines.h"
 #include "mozilla/DataStorage.h"
 #include "mozilla/devtools/HeapSnapshotTempFileHelperParent.h"
 #include "mozilla/docshell/OfflineCacheUpdateParent.h"
 #include "mozilla/dom/DataTransfer.h"
 #include "mozilla/dom/DOMStorageIPC.h"
 #include "mozilla/dom/Element.h"
 #include "mozilla/dom/File.h"
 #include "mozilla/dom/ExternalHelperAppParent.h"

--- a/dom/xml/nsXMLContentSink.cpp
+++ b/dom/xml/nsXMLContentSink.cpp
@@ -15,17 +15,17 @@
 #include "nsNetUtil.h"
 #include "nsIDocShell.h"
 #include "nsIStyleSheetLinkingElement.h"
 #include "nsIDOMComment.h"
 #include "nsIDOMCDATASection.h"
 #include "DocumentType.h"
 #include "nsHTMLParts.h"
 #include "nsCRT.h"
-#include "mozilla/CSSStyleSheet.h"
+#include "mozilla/StyleSheetInlines.h"
 #include "mozilla/css/Loader.h"
 #include "nsGkAtoms.h"
 #include "nsContentUtils.h"
 #include "nsIScriptContext.h"
 #include "nsNameSpaceManager.h"
 #include "nsIServiceManager.h"
 #include "nsIScriptSecurityManager.h"
 #include "nsIContentViewer.h"

--- a/dom/xslt/xslt/txMozillaXMLOutput.cpp
+++ b/dom/xslt/xslt/txMozillaXMLOutput.cpp
@@ -22,17 +22,17 @@
 #include "nsIConsoleService.h"
 #include "nsIDOMDocumentFragment.h"
 #include "nsNameSpaceManager.h"
 #include "txStringUtils.h"
 #include "txURIUtils.h"
 #include "nsIHTMLDocument.h"
 #include "nsIStyleSheetLinkingElement.h"
 #include "nsIDocumentTransformer.h"
-#include "mozilla/CSSStyleSheet.h"
+#include "mozilla/StyleSheetInlines.h"
 #include "mozilla/css/Loader.h"
 #include "mozilla/dom/Element.h"
 #include "mozilla/dom/EncodingUtils.h"
 #include "nsContentUtils.h"
 #include "txXMLUtils.h"
 #include "nsContentSink.h"
 #include "nsINode.h"
 #include "nsContentCreatorFunctions.h"

--- a/dom/xul/XULDocument.cpp
+++ b/dom/xul/XULDocument.cpp
@@ -62,17 +62,17 @@
 #include "nsIScriptGlobalObject.h"
 #include "nsIScriptSecurityManager.h"
 #include "nsNodeInfoManager.h"
 #include "nsContentCreatorFunctions.h"
 #include "nsContentUtils.h"
 #include "nsIParser.h"
 #include "nsCharsetSource.h"
 #include "nsIParserService.h"
-#include "mozilla/CSSStyleSheet.h"
+#include "mozilla/StyleSheetInlines.h"
 #include "mozilla/css/Loader.h"
 #include "nsIScriptError.h"
 #include "nsIStyleSheetLinkingElement.h"
 #include "nsIObserverService.h"
 #include "nsNodeUtils.h"
 #include "nsIDocShellTreeOwner.h"
 #include "nsIXULWindow.h"
 #include "nsXULPopupManager.h"

--- a/dom/xul/nsXULPrototypeCache.cpp
+++ b/dom/xul/nsXULPrototypeCache.cpp
@@ -18,17 +18,17 @@
 #include "nsIObserverService.h"
 #include "nsIStringStream.h"
 #include "nsIStorageStream.h"
 
 #include "nsAppDirectoryServiceDefs.h"
 
 #include "js/TracingAPI.h"
 
-#include "mozilla/CSSStyleSheet.h"
+#include "mozilla/StyleSheetInlines.h"
 #include "mozilla/Preferences.h"
 #include "mozilla/scache/StartupCache.h"
 #include "mozilla/scache/StartupCacheUtils.h"
 #include "mozilla/Telemetry.h"
 
 using namespace mozilla;
 using namespace mozilla::scache;
 

--- a/layout/base/nsDocumentViewer.cpp
+++ b/layout/base/nsDocumentViewer.cpp
@@ -47,17 +47,17 @@
 
 #include "nsViewManager.h"
 #include "nsView.h"
 
 #include "nsIPageSequenceFrame.h"
 #include "nsNetUtil.h"
 #include "nsIContentViewerEdit.h"
 #include "nsIContentViewerFile.h"
-#include "mozilla/CSSStyleSheet.h"
+#include "mozilla/StyleSheetInlines.h"
 #include "mozilla/css/Loader.h"
 #include "nsIInterfaceRequestor.h"
 #include "nsIInterfaceRequestorUtils.h"
 #include "nsDocShell.h"
 #include "nsIBaseWindow.h"
 #include "nsILayoutHistoryState.h"
 #include "nsCharsetSource.h"
 #include "mozilla/ReflowInput.h"

--- a/layout/base/nsPresShell.cpp
+++ b/layout/base/nsPresShell.cpp
@@ -16,17 +16,17 @@
  * 05/03/2000   IBM Corp.       Observer events for reflow states
  */
 
 /* a presentation of a document, part 2 */
 
 #include "mozilla/Logging.h"
 
 #include "mozilla/ArrayUtils.h"
-#include "mozilla/CSSStyleSheet.h"
+#include "mozilla/StyleSheetInlines.h"
 #include "mozilla/EventDispatcher.h"
 #include "mozilla/EventStateManager.h"
 #include "mozilla/EventStates.h"
 #include "mozilla/IMEStateManager.h"
 #include "mozilla/MemoryReporting.h"
 #include "mozilla/dom/TabChild.h"
 #include "mozilla/Likely.h"
 #include "mozilla/MouseEvents.h"

--- a/layout/inspector/inCSSValueSearch.cpp
+++ b/layout/inspector/inCSSValueSearch.cpp
@@ -1,15 +1,15 @@
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 #include "inCSSValueSearch.h"
 
-#include "mozilla/CSSStyleSheet.h"
+#include "mozilla/StyleSheetInlines.h"
 #include "mozilla/dom/StyleSheetList.h"
 #include "nsIComponentManager.h"
 #include "nsIServiceManager.h"
 #include "nsReadableUtils.h"
 #include "nsIDOMDocument.h"
 #include "nsIDOMStyleSheetList.h"
 #include "nsIDOMCSSStyleSheet.h"
 #include "nsIDOMCSSRuleList.h"

--- a/layout/inspector/inDOMUtils.cpp
+++ b/layout/inspector/inDOMUtils.cpp
@@ -30,17 +30,17 @@
 #include "nsIMutableArray.h"
 #include "nsBindingManager.h"
 #include "ChildIterator.h"
 #include "nsComputedDOMStyle.h"
 #include "mozilla/EventStateManager.h"
 #include "nsIAtom.h"
 #include "nsRange.h"
 #include "nsContentList.h"
-#include "mozilla/CSSStyleSheet.h"
+#include "mozilla/StyleSheetInlines.h"
 #include "mozilla/dom/Element.h"
 #include "nsRuleWalker.h"
 #include "nsRuleProcessorData.h"
 #include "nsCSSPseudoClasses.h"
 #include "nsCSSRuleProcessor.h"
 #include "mozilla/dom/CSSLexer.h"
 #include "mozilla/dom/InspectorUtilsBinding.h"
 #include "mozilla/dom/ToJSValue.h"

--- a/layout/style/CSSRuleList.h
+++ b/layout/style/CSSRuleList.h
@@ -1,17 +1,17 @@
 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 #ifndef mozilla_dom_CSSRuleList_h
 #define mozilla_dom_CSSRuleList_h
 
-#include "mozilla/CSSStyleSheet.h"
+#include "mozilla/StyleSheetInlines.h"
 #include "nsIDOMCSSRule.h"
 #include "nsIDOMCSSRuleList.h"
 #include "nsWrapperCache.h"
 
 namespace mozilla {
 namespace dom {
 
 // IID for the CSSRuleList interface

--- a/layout/style/ErrorReporter.cpp
+++ b/layout/style/ErrorReporter.cpp
@@ -2,17 +2,17 @@
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 /* diagnostic reporting for CSS style sheet parser */
 
 #include "mozilla/css/ErrorReporter.h"
 
-#include "mozilla/CSSStyleSheet.h"
+#include "mozilla/StyleSheetInlines.h"
 #include "mozilla/css/Loader.h"
 #include "mozilla/Preferences.h"
 #include "mozilla/Services.h"
 #include "nsCSSScanner.h"
 #include "nsIConsoleService.h"
 #include "nsIDocument.h"
 #include "nsIFactory.h"
 #include "nsIScriptError.h"

--- a/layout/style/Loader.cpp
+++ b/layout/style/Loader.cpp
@@ -16,17 +16,17 @@
 
 /* loading of CSS style sheets using the network APIs */
 
 #include "mozilla/ArrayUtils.h"
 #include "mozilla/LoadInfo.h"
 #include "mozilla/MemoryReporting.h"
 
 #include "mozilla/css/Loader.h"
-#include "mozilla/ServoStyleSheet.h"
+#include "mozilla/StyleSheetInlines.h"
 #include "nsIRunnable.h"
 #include "nsIUnicharStreamLoader.h"
 #include "nsSyncLoadService.h"
 #include "nsCOMPtr.h"
 #include "nsString.h"
 #include "nsIContent.h"
 #include "nsIDocument.h"
 #include "nsIDOMNode.h"
@@ -40,17 +40,16 @@
 #include "nsIHttpChannel.h"
 #include "nsIHttpChannelInternal.h"
 #include "nsIClassOfService.h"
 #include "nsIScriptError.h"
 #include "nsMimeTypes.h"
 #include "nsIStyleSheetLinkingElement.h"
 #include "nsICSSLoaderObserver.h"
 #include "nsCSSParser.h"
-#include "mozilla/CSSStyleSheet.h"
 #include "mozilla/css/ImportRule.h"
 #include "nsThreadUtils.h"
 #include "nsGkAtoms.h"
 #include "nsIThreadInternal.h"
 #include "nsINetworkPredictor.h"
 #include "mozilla/dom/ShadowRoot.h"
 #include "mozilla/dom/URL.h"
 #include "mozilla/AsyncEventDispatcher.h"

--- a/layout/style/Loader.h
+++ b/layout/style/Loader.h
@@ -15,17 +15,17 @@
 #include "nsDataHashtable.h"
 #include "nsRefPtrHashtable.h"
 #include "nsStringFwd.h"
 #include "nsTArray.h"
 #include "nsTObserverArray.h"
 #include "nsURIHashKey.h"
 #include "mozilla/Attributes.h"
 #include "mozilla/CORSMode.h"
-#include "mozilla/CSSStyleSheet.h"
+#include "mozilla/StyleSheetInlines.h"
 #include "mozilla/Maybe.h"
 #include "mozilla/MemoryReporting.h"
 #include "mozilla/StyleBackendType.h"
 #include "mozilla/StyleSheetHandle.h"
 #include "mozilla/net/ReferrerPolicy.h"
 
 class nsICSSLoaderObserver;
 class nsIConsoleReportCollector;

--- a/layout/style/Rule.h
+++ b/layout/style/Rule.h
@@ -3,17 +3,17 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 /* base class for all rule types in a CSS style sheet */
 
 #ifndef mozilla_css_Rule_h___
 #define mozilla_css_Rule_h___
 
-#include "mozilla/CSSStyleSheet.h"
+#include "mozilla/StyleSheetInlines.h"
 #include "mozilla/MemoryReporting.h"
 #include "nsISupports.h"
 #include "nsIDOMCSSRule.h"
 
 class nsIDocument;
 struct nsRuleData;
 template<class T> struct already_AddRefed;
 class nsHTMLCSSStyleSheet;

--- a/layout/style/ServoStyleSet.h
+++ b/layout/style/ServoStyleSet.h
@@ -7,17 +7,17 @@
 #ifndef mozilla_ServoStyleSet_h
 #define mozilla_ServoStyleSet_h
 
 #include "mozilla/EnumeratedArray.h"
 #include "mozilla/EventStates.h"
 #include "mozilla/RefPtr.h"
 #include "mozilla/ServoBindingHelpers.h"
 #include "mozilla/ServoElementSnapshot.h"
-#include "mozilla/ServoStyleSheet.h"
+#include "mozilla/StyleSheetInlines.h"
 #include "mozilla/SheetType.h"
 #include "mozilla/UniquePtr.h"
 #include "nsCSSPseudoElements.h"
 #include "nsChangeHint.h"
 #include "nsIAtom.h"
 #include "nsTArray.h"
 
 namespace mozilla {

--- a/layout/style/StyleRule.cpp
+++ b/layout/style/StyleRule.cpp
@@ -6,17 +6,17 @@
 /*
  * representation of CSS style rules (selectors+declaration), CSS
  * selectors, and DOM objects for style rules, selectors, and
  * declarations
  */
 
 #include "mozilla/css/StyleRule.h"
 
-#include "mozilla/CSSStyleSheet.h"
+#include "mozilla/StyleSheetInlines.h"
 #include "mozilla/MemoryReporting.h"
 #include "mozilla/css/GroupRule.h"
 #include "mozilla/css/Declaration.h"
 #include "nsIDocument.h"
 #include "nsIAtom.h"
 #include "nsString.h"
 #include "nsStyleUtil.h"
 #include "nsICSSStyleRuleDOMWrapper.h"

--- a/layout/style/StyleSetHandleInlines.h
+++ b/layout/style/StyleSetHandleInlines.h
@@ -2,19 +2,18 @@
 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 #ifndef mozilla_StyleSetHandleInlines_h
 #define mozilla_StyleSetHandleInlines_h
 
-#include "mozilla/CSSStyleSheet.h"
+#include "mozilla/StyleSheetInlines.h"
 #include "mozilla/ServoStyleSet.h"
-#include "mozilla/ServoStyleSheet.h"
 #include "nsStyleSet.h"
 
 #define FORWARD_CONCRETE(method_, geckoargs_, servoargs_) \
   if (IsGecko()) { \
     return AsGecko()->method_ geckoargs_; \
   } else { \
     return AsServo()->method_ servoargs_; \
   }

--- a/layout/style/nsCSSParser.cpp
+++ b/layout/style/nsCSSParser.cpp
@@ -22,17 +22,17 @@
 #include "nsCSSScanner.h"
 #include "mozilla/css/ErrorReporter.h"
 #include "mozilla/css/Loader.h"
 #include "mozilla/css/StyleRule.h"
 #include "mozilla/css/ImportRule.h"
 #include "nsCSSRules.h"
 #include "mozilla/css/NameSpaceRule.h"
 #include "nsTArray.h"
-#include "mozilla/CSSStyleSheet.h"
+#include "mozilla/StyleSheetInlines.h"
 #include "mozilla/css/Declaration.h"
 #include "nsStyleConsts.h"
 #include "nsNetUtil.h"
 #include "nsCOMPtr.h"
 #include "nsString.h"
 #include "nsIAtom.h"
 #include "nsColor.h"
 #include "nsCSSPseudoClasses.h"

--- a/layout/style/nsCSSRules.cpp
+++ b/layout/style/nsCSSRules.cpp
@@ -4,17 +4,17 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 /* rules in a CSS stylesheet other than style rules (e.g., @import rules) */
 
 #include "mozilla/Attributes.h"
 
 #include "nsCSSRules.h"
 #include "nsCSSValue.h"
-#include "mozilla/CSSStyleSheet.h"
+#include "mozilla/StyleSheetInlines.h"
 #include "mozilla/MemoryReporting.h"
 #include "mozilla/css/ImportRule.h"
 #include "mozilla/css/NameSpaceRule.h"
 
 #include "nsString.h"
 #include "nsIAtom.h"
 
 #include "nsCSSProps.h"

--- a/layout/style/nsCSSValue.cpp
+++ b/layout/style/nsCSSValue.cpp
@@ -3,17 +3,17 @@
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 /* representation of simple property values within CSS declarations */
 
 #include "nsCSSValue.h"
 
-#include "mozilla/CSSStyleSheet.h"
+#include "mozilla/StyleSheetInlines.h"
 #include "mozilla/Likely.h"
 #include "mozilla/MemoryReporting.h"
 #include "mozilla/Move.h"
 #include "mozilla/css/ImageLoader.h"
 #include "CSSCalc.h"
 #include "gfxFontConstants.h"
 #include "imgIRequest.h"
 #include "imgRequestProxy.h"

--- a/layout/style/nsDOMCSSDeclaration.cpp
+++ b/layout/style/nsDOMCSSDeclaration.cpp
@@ -3,17 +3,17 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 /* base class for DOM objects for element.style and cssStyleRule.style */
 
 #include "nsDOMCSSDeclaration.h"
 
 #include "nsCSSParser.h"
-#include "mozilla/CSSStyleSheet.h"
+#include "mozilla/StyleSheetInlines.h"
 #include "mozilla/css/Rule.h"
 #include "mozilla/css/Declaration.h"
 #include "mozilla/dom/CSS2PropertiesBinding.h"
 #include "nsCSSProps.h"
 #include "nsCOMPtr.h"
 #include "mozAutoDocUpdate.h"
 #include "nsIURI.h"
 #include "mozilla/dom/BindingUtils.h"

--- a/layout/style/nsLayoutStylesheetCache.cpp
+++ b/layout/style/nsLayoutStylesheetCache.cpp
@@ -2,20 +2,19 @@
 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 #include "nsLayoutStylesheetCache.h"
 
 #include "nsAppDirectoryServiceDefs.h"
-#include "mozilla/CSSStyleSheet.h"
+#include "mozilla/StyleSheetInlines.h"
 #include "mozilla/MemoryReporting.h"
 #include "mozilla/Preferences.h"
-#include "mozilla/ServoStyleSheet.h"
 #include "mozilla/StyleSheetHandle.h"
 #include "mozilla/StyleSheetHandleInlines.h"
 #include "mozilla/css/Loader.h"
 #include "mozilla/dom/SRIMetadata.h"
 #include "nsIFile.h"
 #include "nsNetUtil.h"
 #include "nsIObserverService.h"
 #include "nsServiceManagerUtils.h"

--- a/layout/style/nsStyleSet.cpp
+++ b/layout/style/nsStyleSet.cpp
@@ -7,17 +7,17 @@
  * the container for the style sheets that apply to a presentation, and
  * the internal API that the style system exposes for creating (and
  * potentially re-creating) style contexts
  */
 
 #include "nsStyleSet.h"
 
 #include "mozilla/ArrayUtils.h"
-#include "mozilla/CSSStyleSheet.h"
+#include "mozilla/StyleSheetInlines.h"
 #include "mozilla/EffectCompositor.h"
 #include "mozilla/EnumeratedRange.h"
 #include "mozilla/EventStates.h"
 #include "mozilla/MemoryReporting.h"
 #include "mozilla/RuleProcessorCache.h"
 #include "mozilla/StyleSheetHandleInlines.h"
 #include "nsIDocumentInlines.h"
 #include "nsRuleWalker.h"

--- a/layout/style/nsStyleSet.h
+++ b/layout/style/nsStyleSet.h
@@ -8,17 +8,17 @@
  * the internal API that the style system exposes for creating (and
  * potentially re-creating) style contexts
  */
 
 #ifndef nsStyleSet_h_
 #define nsStyleSet_h_
 
 #include "mozilla/Attributes.h"
-#include "mozilla/CSSStyleSheet.h"
+#include "mozilla/StyleSheetInlines.h"
 #include "mozilla/EnumeratedArray.h"
 #include "mozilla/LinkedList.h"
 #include "mozilla/MemoryReporting.h"
 #include "mozilla/SheetType.h"
 
 #include "nsIStyleRuleProcessor.h"
 #include "nsBindingManager.h"
 #include "nsRuleNode.h"

--- a/layout/style/test/ParseCSS.cpp
+++ b/layout/style/test/ParseCSS.cpp
@@ -14,17 +14,17 @@
 
 #include "nsXPCOM.h"
 #include "nsCOMPtr.h"
 
 #include "nsIFile.h"
 #include "nsNetUtil.h"
 
 #include "nsContentCID.h"
-#include "mozilla/CSSStyleSheet.h"
+#include "mozilla/StyleSheetInlines.h"
 #include "mozilla/css/Loader.h"
 
 using namespace mozilla;
 
 static already_AddRefed<nsIURI>
 FileToURI(const char *aFilename, nsresult *aRv = 0)
 {
     nsCOMPtr<nsIFile> lf(do_CreateInstance(NS_LOCAL_FILE_CONTRACTID, aRv));