Make possible to check memory allocations inside chromium

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 118e40a09fdb44f2036949d4402e387817bf8cc4..9a15b585a411eb7d1dd7399a4edc23df3941a095 100644
--- a/third_party/tcmalloc/chromium/src/tcmalloc.cc
+++ b/third_party/tcmalloc/chromium/src/tcmalloc.cc
@@ -269,6 +269,11 @@ extern "C" {
   //    Windows: _msize()
   size_t tc_malloc_size(void* p) __THROW
       ATTRIBUTE_SECTION(google_malloc);
+
+  // This does not call the new handler but let the caller
+  // check whether the allocation succeed.
+  void* tc_try_malloc(size_t size) __THROW
+    ATTRIBUTE_SECTION(google_malloc);
 }  // extern "C"
 
 
@@ -1705,6 +1710,10 @@ extern "C" PERFTOOLS_DLL_DECL void tc_malloc_stats(void) __THROW {
   do_malloc_stats();
 }
 
+extern "C" PERFTOOLS_DLL_DECL void* tc_try_malloc(size_t size) __THROW {
+  return do_malloc(size);
+}
+
 extern "C" PERFTOOLS_DLL_DECL int tc_mallopt(int cmd, int value) __THROW {
   return do_mallopt(cmd, value);
 }