Bug 758992 - Make the classes which use the XPCOM nsISupports implementation macros final, to avoid the warning about deleting using a pointer to a base class with virtual functions and no virtual dtor (more layout parts); r=roc

layout/generic/nsTextFrameThebes.cpp

@@ -499,7 +499,7 @@ static FrameTextRunCache *gTextRuns = nsnull;
 /*
  * Cache textruns and expire them after 3*10 seconds of no use.
  */
-class FrameTextRunCache : public nsExpirationTracker<gfxTextRun,3> {
+class FrameTextRunCache MOZ_FINAL : public nsExpirationTracker<gfxTextRun,3> {
 public:
   enum { TIMEOUT_SECONDS = 10 };
   FrameTextRunCache()

layout/xul/base/src/nsMenuFrame.cpp

@@ -41,6 +41,7 @@
 #include "mozilla/Services.h"
 #include "mozilla/Preferences.h"
 #include "mozilla/LookAndFeel.h"
+#include "mozilla/Attributes.h"
 
 using namespace mozilla;
 
@@ -211,7 +212,7 @@ nsMenuFrame::InitMenuParent(nsIFrame* aParent)
   }
 }
 
-class nsASyncMenuInitialization : public nsIReflowCallback
+class nsASyncMenuInitialization MOZ_FINAL : public nsIReflowCallback
 {
 public:
   nsASyncMenuInitialization(nsIFrame* aFrame)

layout/xul/base/src/nsProgressMeterFrame.cpp

@@ -20,6 +20,7 @@
 #include "nsBoxLayoutState.h"
 #include "nsIReflowCallback.h"
 #include "nsContentUtils.h"
+#include "mozilla/Attributes.h"
 //
 // NS_NewToolbarFrame
 //
@@ -42,7 +43,7 @@ nsProgressMeterFrame :: ~nsProgressMeterFrame ( )
 {
 }
 
-class nsAsyncProgressMeterInit : public nsIReflowCallback
+class nsAsyncProgressMeterInit MOZ_FINAL : public nsIReflowCallback
 {
 public:
   nsAsyncProgressMeterInit(nsIFrame* aFrame) : mWeakFrame(aFrame) {}

layout/xul/base/src/nsTextBoxFrame.cpp

@@ -29,6 +29,7 @@
 #include "nsBoxFrame.h"
 #include "mozilla/Preferences.h"
 #include "nsLayoutUtils.h"
+#include "mozilla/Attributes.h"
 
 #ifdef IBMBIDI
 #include "nsBidiUtils.h"
@@ -152,7 +153,7 @@ nsTextBoxFrame::InsertSeparatorBeforeAccessKey()
   return gInsertSeparatorBeforeAccessKey;
 }
 
-class nsAsyncAccesskeyUpdate : public nsIReflowCallback
+class nsAsyncAccesskeyUpdate MOZ_FINAL : public nsIReflowCallback
 {
 public:
     nsAsyncAccesskeyUpdate(nsIFrame* aFrame) : mWeakFrame(aFrame)