Make the frame dump in CheckFloats() DEBUG_roc only. b=322436 r+sr=roc

layout/generic/nsBlockFrame.cpp

@@ -7086,6 +7086,7 @@ nsBlockFrame::CheckFloats(nsBlockReflowState& aState)
 
   if (!equal || lineFloats.Count() != storedFloats.Count()) {
     NS_WARNING("nsBlockFrame::CheckFloats: Explicit float list is out of sync with float cache");
+#if defined(DEBUG_roc)
     nsIFrameDebug::RootFrameList(GetPresContext(), stdout, 0);
     for (i = 0; i < lineFloats.Count(); ++i) {
       printf("Line float: %p\n", lineFloats.ElementAt(i));
@@ -7093,6 +7094,7 @@ nsBlockFrame::CheckFloats(nsBlockReflowState& aState)
     for (i = 0; i < storedFloats.Count(); ++i) {
       printf("Stored float: %p\n", storedFloats.ElementAt(i));
     }
+#endif
   }
 #endif