Make possible to check memory allocations inside chromium

base/allocator/allocator_shim.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/allocator/allocator_shim.h"
 
 #include <config.h>
 #include "base/allocator/allocator_extension_thunks.h"
 #include "base/profiler/alternate_timer.h"
 #include "base/sysinfo.h"
@@ skipping 183 matching lines @@
     // the requested new size is zero, realloc should free the ptr and return
     // NULL.
     if (new_ptr || !size)
       return new_ptr;
     if (!new_mode || !call_new_handler(true))
       break;
   }
   return new_ptr;
 }
 
+// This does not call the new handler but let the caller
+// check whether the allocation succeed.
+void* allocator_shim_try_malloc(size_t size) __THROW {
+  switch (allocator) {
+    case JEMALLOC:
+      return je_malloc(size);
+    case WINHEAP:
+    case WINLFH:
+      return win_heap_malloc(size);
+    case TCMALLOC:
+      return do_malloc(size);
+  }
+}
+
 // TODO(mbelshe): Implement this for other allocators.
 void malloc_stats(void) __THROW {
 #ifdef ENABLE_DYNAMIC_ALLOCATOR_SWITCHING
   switch (allocator) {
     case JEMALLOC:
       // No stats.
       return;
     case WINHEAP:
     case WINLFH:
       // No stats.
@@ skipping 223 matching lines @@
 void TCMallocDoFreeForTest(void* ptr) {
   do_free(ptr);
 }
 
 size_t ExcludeSpaceForMarkForTest(size_t size) {
   return ExcludeSpaceForMark(size);
 }
 
 }  // namespace allocator.
 }  // namespace base.