Add shutdown trace functions

base/compiler_specific.h

 // Copyright (c) 2006-2008 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.
 
 #ifndef BASE_COMPILER_SPECIFIC_H_
 #define BASE_COMPILER_SPECIFIC_H_
 #pragma once
 
 #include "build/build_config.h"
 
@@ skipping 56 matching lines @@
 #endif  // COMPILER_MSVC
 
 
 // Annotate a variable indicating it's ok if the variable is not used.
 // (Typically used to silence a compiler warning when the assignment
 // is important for some other reason.)
 // Use like:
 //   int x ALLOW_UNUSED = ...;
 #if defined(COMPILER_GCC)
 #define ALLOW_UNUSED __attribute__((unused))
+#define NOINLINE __attribute__((noinline))

[Evan Martin, 2011/05/09 22:49:44]

Sorry to nitpick, but the comment above doesn't match this.  It looks like the
file style is to put each of these attrs in its own #if defined block with a
comment above them.

 #else
 #define ALLOW_UNUSED
+#define NOINLINE
 #endif
 
 // Annotate a virtual method indicating it must be overriding a virtual
 // method in the parent class.
 // Use like:
 //   virtual void foo() OVERRIDE;
 #if defined(COMPILER_MSVC)
 #define OVERRIDE override
 #elif defined(__clang__)
 #define OVERRIDE override
@@ skipping 23 matching lines @@
 #endif
 
 // WPRINTF_FORMAT is the same, but for wide format strings.
 // This doesn't appear to yet be implemented in any compiler.
 // See http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38308 .
 #define WPRINTF_FORMAT(format_param, dots_param)
 // If available, it would look like:
 //   __attribute__((format(wprintf, format_param, dots_param)))
 
 #endif  // BASE_COMPILER_SPECIFIC_H_