Allocator cleanup: move tcmalloc-specific calls to base

third_party/tcmalloc/chromium/src/tcmalloc.cc

Index: third_party/tcmalloc/chromium/src/tcmalloc.cc
diff --git a/third_party/tcmalloc/chromium/src/tcmalloc.cc b/third_party/tcmalloc/chromium/src/tcmalloc.cc
index 3077b75972645cf82958edacb65180bbea1db384..4ea7cdcf1595bee56b315eb9959d7b653e70a785 100644
--- a/third_party/tcmalloc/chromium/src/tcmalloc.cc
+++ b/third_party/tcmalloc/chromium/src/tcmalloc.cc
@@ -1746,12 +1746,6 @@ extern "C" void* PERFTOOLS_DLL_DECL tc_malloc_skip_new_handler(size_t size) {
 
 #endif  // TCMALLOC_USING_DEBUGALLOCATION
 
-#if defined(OS_LINUX)
-// Alias the weak symbol in chromium to our implementation.
-extern "C" __attribute__((visibility("default"), alias("tc_malloc_skip_new_handler")))
-void* tc_malloc_skip_new_handler_weak(size_t size);
-#endif
-
 // --- Validation implementation with an extra mark ----------------------------
 // We will put a mark at the extreme end of each allocation block.  We make
 // sure that we always allocate enough "extra memory" that we can fit in the