diff --git a/mozilla/layout/base/public/nsIFrame.h b/mozilla/layout/base/public/nsIFrame.h
index 52a09887752..d26fd3afba6 100644
--- a/mozilla/layout/base/public/nsIFrame.h
+++ b/mozilla/layout/base/public/nsIFrame.h
@@ -387,16 +387,6 @@ public:
   NS_IMETHOD  DidReflow(nsIPresContext& aPresContext,
                         nsDidReflowStatus aStatus) = 0;
 
-  /**
-   * Post-processing reflow method invoked when justification is enabled.
-   * This is always called after Reflow()
-   *
-   * @param aAvailableSpace The amount of available space that the frame
-   *         should distribute internally.
-   */
-  NS_IMETHOD  JustifyReflow(nsIPresContext* aPresContext,
-                            nscoord         aAvailableSpace) = 0;
-
   /**
    * This call is invoked when content is appended to the content tree.
    *
diff --git a/mozilla/layout/base/src/nsFrame.cpp b/mozilla/layout/base/src/nsFrame.cpp
index fb79458b8af..dd71d169d57 100644
--- a/mozilla/layout/base/src/nsFrame.cpp
+++ b/mozilla/layout/base/src/nsFrame.cpp
@@ -1077,12 +1077,6 @@ NS_METHOD nsFrame::Reflow(nsIPresContext*      aPresContext,
   return NS_OK;
 }
 
-NS_METHOD nsFrame::JustifyReflow(nsIPresContext* aPresContext,
-                                 nscoord         aAvailableSpace)
-{
-  return NS_OK;
-}
-
 NS_METHOD nsFrame::ContentAppended(nsIPresShell*   aShell,
                                    nsIPresContext* aPresContext,
                                    nsIContent*     aContainer)
diff --git a/mozilla/layout/base/src/nsFrame.h b/mozilla/layout/base/src/nsFrame.h
index bfbd34f63ba..aed7536c80e 100644
--- a/mozilla/layout/base/src/nsFrame.h
+++ b/mozilla/layout/base/src/nsFrame.h
@@ -150,8 +150,6 @@ public:
                      nsReflowMetrics&     aDesiredSize,
                      const nsReflowState& aReflowState,
                      nsReflowStatus&      aStatus);
-  NS_IMETHOD  JustifyReflow(nsIPresContext* aPresContext,
-                            nscoord         aAvailableSpace);
   NS_IMETHOD  ContentAppended(nsIPresShell*   aShell,
                               nsIPresContext* aPresContext,
                               nsIContent*     aContainer);
diff --git a/mozilla/layout/generic/nsIFrame.h b/mozilla/layout/generic/nsIFrame.h
index 52a09887752..d26fd3afba6 100644
--- a/mozilla/layout/generic/nsIFrame.h
+++ b/mozilla/layout/generic/nsIFrame.h
@@ -387,16 +387,6 @@ public:
   NS_IMETHOD  DidReflow(nsIPresContext& aPresContext,
                         nsDidReflowStatus aStatus) = 0;
 
-  /**
-   * Post-processing reflow method invoked when justification is enabled.
-   * This is always called after Reflow()
-   *
-   * @param aAvailableSpace The amount of available space that the frame
-   *         should distribute internally.
-   */
-  NS_IMETHOD  JustifyReflow(nsIPresContext* aPresContext,
-                            nscoord         aAvailableSpace) = 0;
-
   /**
    * This call is invoked when content is appended to the content tree.
    *