rename from layout/generic/nsBlockReflowState.cpp
rename to layout/generic/BlockReflowInput.cpp
--- a/layout/generic/nsBlockReflowState.cpp
+++ b/layout/generic/BlockReflowInput.cpp
@@ -1,17 +1,17 @@
 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 // vim:cindent:ts=2:et:sw=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/. */
 
 /* state used in reflow of block frames */
 
-#include "nsBlockReflowState.h"
+#include "mozilla/BlockReflowInput.h"
 
 #include "LayoutLogging.h"
 #include "nsBlockFrame.h"
 #include "nsLineLayout.h"
 #include "nsPresContext.h"
 #include "nsIFrameInlines.h"
 #include "mozilla/AutoRestore.h"
 #include "mozilla/DebugOnly.h"

rename from layout/generic/nsBlockReflowState.h
rename to layout/generic/BlockReflowInput.h

--- a/layout/generic/moz.build
+++ b/layout/generic/moz.build
@@ -96,38 +96,39 @@ EXPORTS += [
     'RubyUtils.h',
     'ScrollbarActivity.h',
     'ScrollSnap.h',
     'Visibility.h',
     'VisibilityIPC.h',
 ]
 
 EXPORTS.mozilla += [
+    'BlockReflowInput.h',
     'ReflowInput.h',
     'WritingModes.h',
 ]
 
 EXPORTS.mozilla.dom += [
     'Selection.h',
 ]
 
 EXPORTS.mozilla.layout += [
     'FrameChildList.h',
 ]
 
 UNIFIED_SOURCES += [
     'AsyncScrollBase.cpp',
+    'BlockReflowInput.cpp',
     'DetailsFrame.cpp',
     'FrameChildList.cpp',
     'MathMLTextRunFactory.cpp',
     'nsAbsoluteContainingBlock.cpp',
     'nsBackdropFrame.cpp',
     'nsBlockFrame.cpp',
     'nsBlockReflowContext.cpp',
-    'nsBlockReflowState.cpp',
     'nsBRFrame.cpp',
     'nsBulletFrame.cpp',
     'nsCanvasFrame.cpp',
     'nsColumnSetFrame.cpp',
     'nsContainerFrame.cpp',
     'nsFirstLetterFrame.cpp',
     'nsFlexContainerFrame.cpp',
     'nsFloatManager.cpp',

--- a/layout/generic/nsBlockFrame.cpp
+++ b/layout/generic/nsBlockFrame.cpp
@@ -13,17 +13,17 @@
 
 #include "mozilla/DebugOnly.h"
 #include "mozilla/Maybe.h"
 #include "mozilla/UniquePtr.h"
 
 #include "nsCOMPtr.h"
 #include "nsAbsoluteContainingBlock.h"
 #include "nsBlockReflowContext.h"
-#include "nsBlockReflowState.h"
+#include "mozilla/BlockReflowInput.h"
 #include "nsBulletFrame.h"
 #include "nsFontMetrics.h"
 #include "nsLineBox.h"
 #include "nsLineLayout.h"
 #include "nsPlaceholderFrame.h"
 #include "nsStyleConsts.h"
 #include "nsFrameManager.h"
 #include "nsPresContext.h"

--- a/layout/generic/nsBlockReflowContext.cpp
+++ b/layout/generic/nsBlockReflowContext.cpp
@@ -2,17 +2,17 @@
 // vim:cindent:ts=2:et:sw=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/. */
 
 /* class that a parent frame uses to reflow a block frame */
 
 #include "nsBlockReflowContext.h"
-#include "nsBlockReflowState.h"
+#include "mozilla/BlockReflowInput.h"
 #include "nsFloatManager.h"
 #include "nsColumnSetFrame.h"
 #include "nsContainerFrame.h"
 #include "nsBlockFrame.h"
 #include "nsLineBox.h"
 #include "nsLayoutUtils.h"
 
 using namespace mozilla;

--- a/layout/generic/nsLineLayout.h
+++ b/layout/generic/nsLineLayout.h
@@ -15,17 +15,17 @@
 /* state and methods used while laying out a single line of a block frame */
 
 #ifndef nsLineLayout_h___
 #define nsLineLayout_h___
 
 #include "gfxTypes.h"
 #include "JustificationUtils.h"
 #include "mozilla/WritingModes.h"
-#include "nsBlockReflowState.h"
+#include "mozilla/BlockReflowInput.h"
 #include "nsLineBox.h"
 #include "plarena.h"
 
 class nsFloatManager;
 struct nsStyleText;
 
 class nsLineLayout {
   using nsBlockReflowState = mozilla::nsBlockReflowState;