Make possible to check memory allocations inside chromium

base/allocator/allocator_shim.cc

Index: base/allocator/allocator_shim.cc
diff --git a/base/allocator/allocator_shim.cc b/base/allocator/allocator_shim.cc
index 1d8229117d77a27035c84a33523b230eea7a3351..239b378216924a6ca5d46d325c1022457b80bef2 100644
--- a/base/allocator/allocator_shim.cc
+++ b/base/allocator/allocator_shim.cc
@@ -201,6 +201,20 @@ void* realloc(void* ptr, size_t size) __THROW {
   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