Fix bug 62791 - realloc now does in-place realloc when it can. r=pinkerton, sr=beard

lib/mac/MacMemoryAllocator/src/nsAllocatorManager.cp

@@ -615,6 +615,12 @@ void *malloc(size_t blockSize)
         static UInt32       sBlockID = 0;
         blockHeader->blockID = sBlockID++;
     }
+#if 0
+    else
+    {
+      DebugStr("\pAllocation failure");
+    }
+#endif
     return newBlock;
 #else
     
@@ -677,15 +683,15 @@ void* realloc(void* block, size_t newSize)
         switch (allocator->GetAllocatorType())
         {
             case nsMemAllocator::eAllocatorTypeFixed:
-                ((nsFixedSizeAllocator*)allocator)->AllocatorResizeBlock(block, newSize);
+                newBlock = ((nsFixedSizeAllocator*)allocator)->AllocatorResizeBlock(block, newSize);
                 break;
                 
             case nsMemAllocator::eAllocatorTypeSmall:
-                ((nsSmallHeapAllocator*)allocator)->AllocatorResizeBlock(block, newSize);
+                newBlock = ((nsSmallHeapAllocator*)allocator)->AllocatorResizeBlock(block, newSize);
                 break;
                 
             case nsMemAllocator::eAllocatorTypeLarge:
-                ((nsLargeHeapAllocator*)allocator)->AllocatorResizeBlock(block, newSize);
+                newBlock = ((nsLargeHeapAllocator*)allocator)->AllocatorResizeBlock(block, newSize);
                 break;
         }