Bug 1230552 - Update some out-of-date comments and remove an old #undef. r=kats

--HG--
extra : commitid : 7R2ds1KVd3o
extra : rebase_source : a7185a20194ae9c7a535cb46510e5f9885c1a434

gfx/layers/apz/src/AsyncPanZoomController.h

@@ -871,7 +871,7 @@ private:
 
   void HandleSmoothScrollOverscroll(const ParentLayerPoint& aVelocity);
 
-  // Helper function used by TakeOverFling() and HandleFlingOverscroll().
+  // Helper function used by AttemptFling().
   void AcceptFling(ParentLayerPoint& aVelocity,
                    const RefPtr<const OverscrollHandoffChain>& aOverscrollHandoffChain,
                    bool aHandoff);

gfx/layers/apz/src/InputQueue.h

@@ -173,7 +173,7 @@ private:
   void UpdateActiveApzc(const RefPtr<AsyncPanZoomController>& aNewActive);
 
 private:
-  // The queue of touch blocks that have not yet been fully processed.
+  // The queue of input blocks that have not yet been fully processed.
   // This member must only be accessed on the controller/UI thread.
   nsTArray<UniquePtr<CancelableBlockState>> mInputBlockQueue;
 

gfx/layers/apz/src/OverscrollHandoffState.h

@@ -9,7 +9,7 @@
 
 #include <vector>
 #include "nsAutoPtr.h"
-#include "nsISupportsImpl.h"  // for NS_INLINE_DECL_REFCOUNTING
+#include "nsISupportsImpl.h"  // for NS_INLINE_DECL_THREADSAFE_REFCOUNTING
 #include "APZUtils.h"         // for CancelAnimationFlags
 #include "Layers.h"           // for Layer::ScrollDirection
 #include "Units.h"            // for ScreenPoint
@@ -127,8 +127,6 @@ struct OverscrollHandoffState {
 
   ScrollSource mScrollSource;
 };
-// Don't pollute other files with this macro for now.
-#undef NS_INLINE_DECL_THREADSAFE_MUTABLE_REFCOUNTING
 
 } // namespace layers
 } // namespace mozilla